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Systems, Volume 12, Issue 10 (October 2024) – 61 articles

Cover Story (view full-size image): This review paper examines the integration of complex systems theory into predictive analytics within the e-commerce industry, highlighting its implications for business management. It discusses how complex systems models, such as agent-based modeling and network theory, enhance the accuracy and effectiveness of predictive analytics. The review outlines the use of advanced techniques like real-time data analysis and machine learning in key areas, including inventory optimization, dynamic pricing, and customer experience personalization. Furthermore, it identifies critical research directions to overcome the technical, ethical, and practical challenges that arise from this integration, aiming to enrich the field and guide future studies. View this paper
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30 pages, 4307 KiB  
Case Report
Design Thinking in Innovation Processes: A Market Segmentation Tool in Social Networks Research
by Richard Hartman, Roman Kvasnička, Martin Čejka and Ladislav Pilař
Systems 2024, 12(10), 444; https://doi.org/10.3390/systems12100444 - 21 Oct 2024
Viewed by 1477
Abstract
This paper outlines the purposeful adaptation and utilization of the design thinking process in an innovation case involving market segmentation in social network research. Based on a case study, this paper combines the design thinking process with systems approach methods to foster innovation [...] Read more.
This paper outlines the purposeful adaptation and utilization of the design thinking process in an innovation case involving market segmentation in social network research. Based on a case study, this paper combines the design thinking process with systems approach methods to foster innovation in social network analyses. The paper details the entire process, from the initial stages to the development of a viable solution defined in the final assignment for programmers. The case study emphasizes the effective use of systems thinking tools and demonstrates the value of combining these two approaches to meet the needs of the innovation process. The paper aims to narrate the entire process and highlight critical points in a real-world case study. The focus was on the challenge of creating a market segmentation tool for researchers and marketers in the realm of social network analysis. Full article
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<p>Basic rich picture.</p>
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<p>Visualization possibilities (<b>A</b>–<b>D</b>).</p>
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<p>Visualization possibilities (<b>A</b>–<b>D</b>).</p>
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<p>Sequence diagram.</p>
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<p>Home page.</p>
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<p>Overview of selected segments.</p>
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<p>Groups of countries with the same sentiment.</p>
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<p>Overview of campaign proposal.</p>
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<p>Functions and structure of the market segmentation application.</p>
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31 pages, 26175 KiB  
Article
X-RMTV: An Integrated Approach for Requirement Modeling, Traceability Management, and Verification in MBSE
by Pengfei Gu, Yuteng Zhang, Zhen Chen, Chun Zhao, Kunyu Xie, Zhuoyi Wu and Lin Zhang
Systems 2024, 12(10), 443; https://doi.org/10.3390/systems12100443 - 20 Oct 2024
Viewed by 1077
Abstract
Formal requirements modeling and traceability management are essential for effectively implementing Model-Based Systems Engineering (MBSE). However, few studies have explored the integration of requirement modeling, traceability management, and verification within MBSE-based systems engineering methodologies. Moreover, the predominant modeling language for MBSE, SysML, lacks [...] Read more.
Formal requirements modeling and traceability management are essential for effectively implementing Model-Based Systems Engineering (MBSE). However, few studies have explored the integration of requirement modeling, traceability management, and verification within MBSE-based systems engineering methodologies. Moreover, the predominant modeling language for MBSE, SysML, lacks sufficient capabilities for requirement description and traceability management and for depicting physical attributes and executable capabilities, making it challenging to verify functional and non-functional requirements collaboratively. This paper proposes an integrated approach for requirement modeling, traceability management, and verification, building on the previously proposed integrated modeling and the simulation language called X language. Our contributions primarily include defining the ReqXL specification for MBSE-oriented requirement modeling based on X language, proposing an algorithm for automatically generating requirement traces, and an integrated framework for requirements modeling, traceability management, and verification was developed by combining the X language with ReqXL. These functionalities were customized on the self-developed integrated modeling and simulation platform, XLab, which is specifically tailored for the X language. Furthermore, we showcase the efficacy and promise of our approach through a case study involving the design of an aircraft electrical system. Full article
(This article belongs to the Special Issue Advanced Model-Based Systems Engineering)
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<p>The relationship between ReqXL and existing elements of the X language.</p>
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<p>Specified patterns for expressing different types of requirements.</p>
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<p>ReqXL metamodel.</p>
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<p>ReqXL grammar.</p>
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<p>Integrated framework.</p>
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<p>Requirement models based on ReqXL’s graphical and text views.</p>
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<p>Overall process for generating requirement traceability Links.</p>
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<p>Integrated platform.</p>
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<p>Modeling stakeholder needs and their sources based on ReqXL.</p>
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<p>Problem domain with the aircraft electrical system considered as a black box: (<b>a</b>) Stakeholder needs; (<b>b</b>) System context; (<b>c</b>) Use case scenarios; (<b>d</b>) Use cases; (<b>e</b>) Measurements of effectiveness.</p>
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<p>Modeling the relationships between stakeholder needs and functional models based on ReqXL.</p>
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<p>Problem domain with the aircraft electrical system considered as a white box: (<b>a</b>) Functional analysis; (<b>b</b>) Logical architecture definition; (<b>c</b>) Logical subsystems communication; (<b>d</b>) Logical architecture text.</p>
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<p>Modeling the system requirements, component requirements and the relationships between system requirements, component requirements, and functional models based on ReqXL.</p>
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<p>Graphical and textual models for the radar: (<b>a</b>) Definition diagram for the radar; (<b>b</b>) State machine diagram for the radar; (<b>c</b>) Text for the radar.</p>
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<p>Simulation results of sim_rudder,sim_radar and sim_fuse.</p>
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<p>Modeling the relationships between component requirements, designed system and simulation test cases based on ReqXL.</p>
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<p>Graphical and textual models for the battery: (<b>a</b>) Definition diagram for the battery; (<b>b</b>) State machine diagram for the battery; (<b>c</b>) Text for the battery.</p>
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<p>Simulation results of sim_battery.</p>
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<p>Modeling the relationships between component requirements CR.1 and CR.2, designed system and simulation test cases based on ReqXL.</p>
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<p>The traces model for SN.1.</p>
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24 pages, 892 KiB  
Article
AI-Enabled Multi-Mode Electronic Information Innovation Practice Teaching Reform Prediction and Exploration in Application-Oriented Universities
by Ying Chen, Jianrong Bao, Geqi Weng, Yanhai Shang, Chao Liu and Bin Jiang
Systems 2024, 12(10), 442; https://doi.org/10.3390/systems12100442 - 20 Oct 2024
Viewed by 1266
Abstract
In view of professional learning and practical training in traditional electronic information education of application-oriented universities, this paper constructs electronic information–innovation practice teaching reform (EI-IPTR).In this scheme, by an integrating artificial intelligence (AI)-enabled curriculum with a multi-mode integrated platform and open-style module, big [...] Read more.
In view of professional learning and practical training in traditional electronic information education of application-oriented universities, this paper constructs electronic information–innovation practice teaching reform (EI-IPTR).In this scheme, by an integrating artificial intelligence (AI)-enabled curriculum with a multi-mode integrated platform and open-style module, big data-based comprehensive education resources are optimally configured. We jointly perform the multi-mode construction of innovative practice teaching, professional education stage design, and teaching management improvement, respectively. Subsequently, new practice teaching mechanisms with information technology and its implementation and management methods are established to achieve better teaching effects. It first strengthens learning and intra-group competition to promote students’ innovation in competitions. Then, the AI technique, i.e., attention mechanism-aided long short-term memory (LSTM), is used to model individual students’ abilities. Thus, it accurately evaluates them for teachers to efficiently manage their teaching process in accordance with their aptitude. The teaching reform practice verifies that the AI-enabled big data optimization of teaching reform has a better effect by the above multi-mode innovation. It exhibits an obvious improvement in the quantity and quality of students’ professional knowledge, personal ability, teamwork, and innovative practice. It is also in accordance with the independent completion of practical course teaching in the analysis of big education data. In addition, it realizes high-quality practical teaching by combining multi-mode, multi-level, and open discipline foundations together with efficient, professional skills. Full article
(This article belongs to the Special Issue Information Systems: Discipline, Critical Research and Education)
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<p>Educational big data analysis and exploration of multi-mode electronic information innovation practice teaching.</p>
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<p>Application of deep learning technology in basic teaching.</p>
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<p>Application of reinforcement learning in advanced teaching.</p>
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<p>Application of joint deep learning and big data technology in visualizing student individual data.</p>
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<p>Application of the LSTM model to predict individual student data.</p>
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<p>Student class progression grade prediction chart.</p>
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<p>Curves of course exercise training and prediction accuracy.</p>
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<p>Typical student competition award prediction chart.</p>
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<p>Achievements of three-year practical teaching reform.</p>
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35 pages, 1697 KiB  
Article
Knowledge Spillovers and Integrated Circuit Innovation Ecosystem Resilience: Evidence from China
by Shiyu Zhou, Xueguo Xu and Fengmei Liu
Systems 2024, 12(10), 441; https://doi.org/10.3390/systems12100441 - 18 Oct 2024
Viewed by 788
Abstract
A resilient innovation ecosystem is an important guarantee for enhancing industrial competitiveness. Knowledge spillover is the key driving force to enhance system resilience. Firstly, we use the MEREC-CoCoSo method to calculate the resilience level of the integrated circuit (IC) innovation ecosystem and analyze [...] Read more.
A resilient innovation ecosystem is an important guarantee for enhancing industrial competitiveness. Knowledge spillover is the key driving force to enhance system resilience. Firstly, we use the MEREC-CoCoSo method to calculate the resilience level of the integrated circuit (IC) innovation ecosystem and analyze the evolution trajectory of the resilience before and after the emergence of the “stuck-neck” problem. Secondly, based on the panel data of 30 provinces (autonomous regions and municipalities directly under the central government) in China from 2011 to 2021, this paper analyzes the mechanism of the impact of intra-regional knowledge spillovers on the resilience of IC innovation ecosystems using the fixed-effect model and analyzes the spatial effect of inter-regional knowledge spillovers on the resilience of innovation ecosystems using the spatial Durbin model under the human capital matrix. Finally, we analyze the regulating role of contractual and relational governance mechanisms and try to open the “black box” of governance. The result shows the following: (1) The polarization of innovative ecosystem resilience of integrated circuits is gradually increasing, with strong spatial agglomeration, high–high agglomeration, low–low agglomeration, and low–high dispersion, and there is an obvious “matthew effect” and “siphon effect”. (2) Both intra- and inter-regional knowledge spillovers contribute significantly to the resilience of IC innovation ecosystems. The contractual governance mechanism can effectively enhance the impact of knowledge spillovers on the resilience of innovation ecosystems in the region, and the relational governance mechanism has a positive impact on the resilience of innovation ecosystems in neighboring regions. (3) Heterogeneity results show that knowledge spillovers within the Pan-PRD region have a significant positive impact on innovation ecosystem resilience. Knowledge spillovers between regions with low innovation capacity have a double effect on innovation ecosystem resilience, and knowledge spillovers between regions with “talent highlands” have a facilitating effect on innovation ecosystem resilience. Accordingly, policy recommendations are put forward to open up channels for innovation knowledge spillover, realize effective allocation of innovation resources, and optimize the system of innovation talents. Full article
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<p>Theoretical framework of knowledge spillover.</p>
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<p>Conceptual model of regional knowledge spillover and resilience of IC innovation ecosystems.</p>
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<p>Evolution trajectory of knowledge spillover and resilience of integrated circuit innovation ecosystem. (<b>a</b>) The evolution trajectories of intra-regional knowledge spillover, (<b>b</b>) The evolution trajectories of inter-regional knowledge spillover, (<b>c</b>) The evolution trajectories of IC innovation ecosystem resilience.</p>
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<p>Evolution trajectory of knowledge spillover and resilience of integrated circuit innovation ecosystem. (<b>a</b>) The evolution trajectories of intra-regional knowledge spillover, (<b>b</b>) The evolution trajectories of inter-regional knowledge spillover, (<b>c</b>) The evolution trajectories of IC innovation ecosystem resilience.</p>
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<p>Local Moran scatter plots for 2011, 2014, 2018, and 2021. (<b>a</b>) The local Moran scatterplot for 2011, (<b>b</b>) The local Moran scatterplot for 2014, (<b>c</b>) The local Moran scatterplot for 2018, (<b>d</b>) The local Moran scatterplot for 2021.</p>
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25 pages, 1411 KiB  
Article
Identifying Key Factors of Reputational Risk in Finance Sector Using a Linguistic Fuzzy Modeling Approach
by Uğur Hanay, Hüseyin İnce and Gürkan Işık
Systems 2024, 12(10), 440; https://doi.org/10.3390/systems12100440 - 17 Oct 2024
Viewed by 1123
Abstract
Management of reputational risk is crucial for financial institutions to establish a solid foundation for strategic decisions, gain customer trust, and enhance resilience against environmental adversities, as they largely operate on digital platforms. Since this becomes even more significant as online transactions and [...] Read more.
Management of reputational risk is crucial for financial institutions to establish a solid foundation for strategic decisions, gain customer trust, and enhance resilience against environmental adversities, as they largely operate on digital platforms. Since this becomes even more significant as online transactions and digital interactions amplify the visibility and potential impact of reputational issues in the context of electronic commerce, it is essential to thoroughly investigate environmental factors to achieve a comprehensive understanding of reputational risk. However, measuring and evaluating their influence on reputational risk is challenging due to their inherent connection to human perception. This study aims to explore the factors influencing reputational risk of financial organizations to mitigate potential reputational losses by addressing uncertainties associated with concepts such as vagueness. The employed methodology integrates the Decision-Making Trial and Evaluation Laboratory and Fuzzy Cognitive Map techniques using linguistic fuzzy terms. This approach focuses on both the direct effects of factors on reputational risk and the indirect effects arising from interdependencies between factors. Linguistic fuzzy variables enable us to consider the hesitation of the experts and the vagueness of human judgment. To validate the results, factors are also weighted using the fuzzy Stepwise Weight Assessment Ratio Analysis (SWARA) method. The most influential factors identified by both methods are market value, revenue, risk culture, shareholder value, firm performance, reputation awareness, and return on equity. Additionally, factors affecting other factors include firm performance, revenue, and growth opportunities. Full article
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<p>Illustration of the employed fuzzy DEMATEL + FCM method.</p>
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<p>Illustration of the employed SWARA method.</p>
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<p>Employed linguistic fuzzy term sets.</p>
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16 pages, 660 KiB  
Article
Joint Choice of Fresh Food Purchase Channels and Terminal Delivery Service: A Background on Major Public Health Events
by Huiqi Zhu and Tianhua Jiang
Systems 2024, 12(10), 439; https://doi.org/10.3390/systems12100439 - 17 Oct 2024
Viewed by 765
Abstract
The paper aims to analyze the consumer joint choice behavior on fresh food purchase channels and terminal delivery services during major public health events, with the purpose of revealing the underlying influencing factors and behavioral characteristics. First, based on random utility maximization theory, [...] Read more.
The paper aims to analyze the consumer joint choice behavior on fresh food purchase channels and terminal delivery services during major public health events, with the purpose of revealing the underlying influencing factors and behavioral characteristics. First, based on random utility maximization theory, the cross-nested logit model is formulated, which takes into account the influence of socioeconomic attribute factors, service attribute factors, risk perception attribute factors and trust perception attribute factors. Second, a questionnaire survey is conducted, and the obtained data are used to estimate the model parameters and perform an elasticity analysis of the utility variables. The parameter estimation results demonstrate that in the context of major public health events, consumers consider adjusting their attitudes toward e-commerce platforms first when the utility variables are altered, and fresh food purchase channels are easily replaced for consumers who choose unmanned equipment home delivery. The elasticity analysis results suggest that consumers are more willing to buy fresh food through community group-buying channels, are more sensitive to the convenience of the purchase process and are less concerned with delivery time. Although person-to-person contact increases the risk of infection, consumers still prefer attended terminal delivery services. Furthermore, consumers least agree with the effectiveness of body temperature detection methods in public places but feel that an effective way to increase consumer trust in enterprises is to strengthen personnel protection measures. Full article
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<p>Structure of the CNL model.</p>
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16 pages, 5556 KiB  
Article
Analyzing Rear-End Crash Counts on Ohio Interstate Freeways Using Advanced Multilevel Modeling
by Omar Almutairi
Systems 2024, 12(10), 438; https://doi.org/10.3390/systems12100438 - 16 Oct 2024
Viewed by 664
Abstract
This study presents a new modeling approach for rear-end crash counts on Ohio’s interstate freeways based on a dataset for 2021 that contains 2745 rear-end crashes. The analysis encompasses 20 interstate freeways, comprising 1833 homogeneous segments and extending over approximately 1313 miles. These [...] Read more.
This study presents a new modeling approach for rear-end crash counts on Ohio’s interstate freeways based on a dataset for 2021 that contains 2745 rear-end crashes. The analysis encompasses 20 interstate freeways, comprising 1833 homogeneous segments and extending over approximately 1313 miles. These interstate freeways exhibit varying safety performances, indicating a significant degree of heterogeneity. A unique rear-end crash risk rate was devised for each interstate, capturing diverse risk profiles. Three distinct models were developed: a standard negative binomial model, an uncorrelated two-level negative binomial model, and a correlated two-level negative binomial model. The correlated two-level negative binomial model demonstrated superior fit, as evidenced by the likelihood ratio test, Akaike information criterion, and Bayesian information criterion. The correlated two-level negative binomial model exhibited enhanced forecasting precision, as measured by the Root Mean Square Error. A significant finding is that the rear-end crash risk rate significantly improves the fit of the models. The study also reveals that rear-end crashes are expected to occur more frequently in urban segments of interstate freeways with high rear-end risk rates. However, rural segments experience no such significant variations in the rear-end crash risk rate. However, an increase in the inner shoulder width is associated with a decrease in expected rear-end crashes. This research offers a valuable methodology for modeling rear-end crashes on interstate freeways, providing insights into the contributing variables that could inform targeted safety improvements. Full article
(This article belongs to the Special Issue Performance Analysis and Optimization in Transportation Systems)
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<p>A map of Ohio’s considered interstate freeways.</p>
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<p>Data on Ohio freeways.</p>
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<p>Rear-end crashes for each interstate freeway.</p>
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<p>Rear-end crash risk rating for each freeway.</p>
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<p>Quantile–quantile residuals plot for fixed parameter negative binomial model.</p>
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<p>Quantile–quantile residuals plot for two-level negative binomial model.</p>
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<p>Quantile–quantile residuals plot for correlated two-level negative binomial model.</p>
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<p>The interaction between rear-end risk rate and area.</p>
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17 pages, 1626 KiB  
Article
Systems Thinking Principles for Making Change
by Martin Reynolds
Systems 2024, 12(10), 437; https://doi.org/10.3390/systems12100437 - 16 Oct 2024
Viewed by 1704
Abstract
Traditionally, systems thinking support has relied on an ever-increasing plethora of systems tools, methods, and approaches. Arguably though, such support requires something different from, and more accessible than, detailed instruction on somewhat abstract laws and detailed principles and/or constitutive rules associated with conventional [...] Read more.
Traditionally, systems thinking support has relied on an ever-increasing plethora of systems tools, methods, and approaches. Arguably though, such support requires something different from, and more accessible than, detailed instruction on somewhat abstract laws and detailed principles and/or constitutive rules associated with conventional systems approaches or systems ‘tools of the trade’. For busy managers and decision makers working in often-stressful conditions, what is perhaps more valued are simple principles for enabling systems thinking in practice. Such principles should acknowledge and build on existing (multi)disciplinary skill sets and expertise, allowing for more meaningful interdisciplinary support amongst professions, as part of a nested transdisciplinary support for addressing wider social challenges. This monograph offers three principles of systems thinking in practice (STiP): relational STiP, perspective STiP, and adaptive STiP. They each have two sets of operational principles applicable to first-order and second-order practice, respectively. The three general principles are nested in an overriding principle of STiP as praxis (theory-informed action or thinking in practice) manifest in the need for being both systemic and systematic. The three principles represent a distilled expression of a systematic literacy of systems thinking, a literacy that speaks to the systemic sensibilities of Inter-relationships, Perspectives, and Boundaries (sometimes referred collectively as IPB), associated with any area of intervention. Drawing on metaphors of bricolage, conversation, and performance, and building on philosophical foundations of boundary critique, the three principles provide for a requisite systems literacy (as an emergent property of systemic sensibilities and systems thinking literacy) for enabling appropriate STiP capabilities to flourish when making a meaningful change. Full article
(This article belongs to the Special Issue The Systems Thinking Approach to Strategic Management)
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<p>Ontological and epistemological uses of systems (adapted from Ison [<a href="#B12-systems-12-00437" class="html-bibr">12</a>]).</p>
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<p>Artisanal image of bricoleur. Front cover of publication <span class="html-italic">Systems Approaches to Making Change</span> [<a href="#B24-systems-12-00437" class="html-bibr">24</a>].</p>
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<p>Systems thinking in practice (STiP) heuristic (©2024 Martin Reynolds) comprising three entities—situations, practitioners, and systems—with three associated activities: (i) understanding inter-relationships; (ii) engaging with multiple perspectives; and (iii) reflecting on boundary judgements (adapted from Reynolds, 2016 [<a href="#B28-systems-12-00437" class="html-bibr">28</a>]).</p>
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<p>Systemic triangulation between three principles of systems thinking in practice (STiP). Based on ideas of boundary critique (©2024 Martin Reynolds).</p>
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<p>Activity model of systems thinking in practice (STiP) support for interventions. Adapted from Reynolds and Ison [<a href="#B7-systems-12-00437" class="html-bibr">7</a>] ©2024 Martin Reynolds.</p>
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1 pages, 207 KiB  
Correction
Correction: Spours, K. From Learning Ecologies to a Social Ecosystem Model for Learning and Skills. Systems 2024, 12, 324
by Ken Spours
Systems 2024, 12(10), 436; https://doi.org/10.3390/systems12100436 - 16 Oct 2024
Viewed by 396
Abstract
In the published article [...] Full article
20 pages, 3421 KiB  
Article
Circular–Sustainable–Reliable Waste Management System Design: A Possibilistic Multi-Objective Mixed-Integer Linear Programming Model
by Erfan Babaee Tirkolaee
Systems 2024, 12(10), 435; https://doi.org/10.3390/systems12100435 - 16 Oct 2024
Viewed by 904
Abstract
Waste management involves the systematic collection, transportation, processing, and treatment of waste materials generated by human activities. It entails a variety of strategies and technologies to diminish environmental impacts, protect public health, and conserve resources. Consequently, providing an effective and comprehensive optimization approach [...] Read more.
Waste management involves the systematic collection, transportation, processing, and treatment of waste materials generated by human activities. It entails a variety of strategies and technologies to diminish environmental impacts, protect public health, and conserve resources. Consequently, providing an effective and comprehensive optimization approach plays a critical role in minimizing waste generation, maximizing recycling and reuse, and safely disposing of waste. This work develops a novel Possibilistic Multi-Objective Mixed-Integer Linear Programming (PMOMILP) model in order to formulate the problem and design a circular–sustainable–reliable waste management network, under uncertainty. The possibility of recycling and recovery are considered across incineration and disposal processes to address the main circular-economy principles. The objectives are to address sustainable development throughout minimizing the total cost, minimizing the environmental impact, and maximizing the reliability of the Waste Management System (WMS). The Lp-metric technique is then implemented into the model to tackle the multi-objectiveness. Several benchmarks are adapted from the literature in order to validate the efficacy of the proposed methodology, and are treated by CPLEX solver/GAMS software in less than 174.70 s, on average. Moreover, a set of sensitivity analyses is performed to appraise different scenarios and explore utilitarian managerial implications and decision aids. It is demonstrated that the configured WMS network is highly sensitive to the specific time period wherein the WMS does not fail. Full article
(This article belongs to the Section Supply Chain Management)
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<p>Proposed research framework.</p>
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<p>Proposed methodology.</p>
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<p>Representation of the developed WMS network.</p>
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<p>Comparison of the times.</p>
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<p>Sensitivity analysis of (<math display="inline"><semantics> <mrow> <mi>ρ</mi> <mo>,</mo> <msup> <mrow> <mi>ρ</mi> </mrow> <mrow> <mo>′</mo> </mrow> </msup> <mo>,</mo> <msup> <mrow> <mi>ρ</mi> </mrow> <mo>″</mo> </msup> <mo>)</mo> </mrow> </semantics></math>.</p>
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<p>Sensitivity analysis of <math display="inline"><semantics> <mrow> <mi>τ</mi> </mrow> </semantics></math>.</p>
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<p>Sensitivity analysis of <math display="inline"><semantics> <mrow> <mi>τ</mi> </mrow> </semantics></math>.</p>
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23 pages, 934 KiB  
Article
Cyber Resilience Limitations in Space Systems Design Process: Insights from Space Designers
by Syed Shahzad, Keith Joiner, Li Qiao, Felicity Deane and Jo Plested
Systems 2024, 12(10), 434; https://doi.org/10.3390/systems12100434 - 15 Oct 2024
Viewed by 1161
Abstract
Space technology is integral to modern critical systems, including navigation, communication, weather, financial services, and defence. Despite its significance, space infrastructure faces unique cyber resilience challenges exacerbated by the size, isolation, cost, persistence of legacy systems, and lack of comprehensive cyber resilience engineering [...] Read more.
Space technology is integral to modern critical systems, including navigation, communication, weather, financial services, and defence. Despite its significance, space infrastructure faces unique cyber resilience challenges exacerbated by the size, isolation, cost, persistence of legacy systems, and lack of comprehensive cyber resilience engineering standards. This paper examines the engineering challenges associated with incorporating cyber resilience into space design, drawing on insights and experiences from industry experts. Through qualitative interviews with engineers, cybersecurity specialists, project managers, and testers, we identified key themes in engineering methodologies, cybersecurity awareness, and the challenges of integrating cyber resilience into space projects. Participants emphasised the importance of incorporating cybersecurity considerations from the earliest stages of design, advocating for principles such as zero-trust architecture and security by design. Our findings reveal that experts favour Model-Based Systems Engineering (MBSE) and Agile methodologies, highlighting their synergy in developing flexible and resilient systems. The study also underscores the tension between principles-based standards, which offer flexibility but can lead to inconsistent implementation, and compliance-based approaches, which provide clear measures but may struggle to adapt to evolving threats. Additionally, the research recognises significant barriers to achieving cyber resilience, including insider threats, the complexity of testing and validation, and budget constraints. Effective stakeholder engagement and innovative funding models are crucial for fostering a culture of cybersecurity awareness and investment in necessary technologies. This study highlights the need for a comprehensive cyber resilience framework that integrates diverse engineering methodologies and proactive security measures, ensuring the resilience of space infrastructure against emerging cyber threats. Full article
(This article belongs to the Special Issue Cyber Security Challenges in Complex Systems)
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<p>Deductive codes of interview questions.</p>
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<p>Flow chart of the research procedure.</p>
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<p>Major themes from thematic analysis of interview data.</p>
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<p>Inductive code frequency.</p>
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<p>New themes found in inductive codes.</p>
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36 pages, 10624 KiB  
Article
Predicting Dependent Edges in Nonequilibrium Complex Systems Based on Overlapping Module Characteristics
by Qingyu Zou, Lin Yan, Yue Gong and Jingfei Hou
Systems 2024, 12(10), 433; https://doi.org/10.3390/systems12100433 - 14 Oct 2024
Viewed by 867
Abstract
Problem: Predicting dependency relationships in nonequilibrium systems is a critical challenge in complex systems research. Solution proposed: In this paper, we propose a novel method for predicting dependent edges in network models of nonequilibrium complex systems, based on overlapping module features. This approach [...] Read more.
Problem: Predicting dependency relationships in nonequilibrium systems is a critical challenge in complex systems research. Solution proposed: In this paper, we propose a novel method for predicting dependent edges in network models of nonequilibrium complex systems, based on overlapping module features. This approach addresses the many-to-many dependency prediction problem between nonequilibrium complex networks. By transforming node-based network models into edge-based models, we identify overlapping modular structures, enabling the prediction of many-to-many dependent edges. Experimental evaluation: This method is applied to dependency edge prediction in power and gas networks, curriculum and competency networks, and text and question networks. Results: The results indicate that the proposed dependency edge prediction method enhances the robustness of the network in power–gas networks, accurately identifies supporting relationships in curriculum–competency networks, and achieves better information gain in text–question networks. Conclusion: These findings confirm that the overlapping module-based approach effectively predicts dependencies across various nonequilibrium complex systems in diverse fields. Full article
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<p>The method flow of this paper. The blue dotted box shows the calculation process of the multi-node network, and the purple dotted box shows the calculation process of the few-node network.</p>
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<p>Common node extraction. Blue nodes are the endpoints of edges, green and purple nodes are the adjacent nodes of the blue nodes, and purple nodes are the common adjacent nodes of the endpoints of two edges.</p>
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<p>The node-based network is transformed into an edge-based model. The network of blue nodes on the right is an edge network derived from the red-node network on the left. This edge network consists of 16 nodes, which correspond to the 16 edges in the node network. For example, the blue node “1–2” in the right diagram represents an edge mapped from vertices 1 and 2 in the node network on the left.</p>
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<p>Network module relationship mapping. In the edge network on the left, nodes of the same color belong to the same module. When mapped to the node network, the module division of the nodes is shown in the diagram on the right. Nodes within the same module are indicated by curves of the same color. For example, the nodes within the red curve are mapped from the red nodes in the network on the left.</p>
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<p>Few-node network.</p>
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<p>Dependent edge prediction results. The upper layer is the few-node network, the lower layer is the multi-node network, the black dots represent the nodes of the network, the blue solid lines are the edges in the network, and the red dashed lines are the dependency edges between the two networks.</p>
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<p>Power network model. (<b>a</b>) is an electrical diagram of the power network; (<b>b</b>) is a complex network model of the power network in (<b>a</b>).</p>
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<p>Gas network model. (<b>a</b>) is the Belgian 20-node gas network; (<b>b</b>) is the network model of (<b>a</b>).</p>
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<p>Edge-based model of the power grid.</p>
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<p>Power–gas dependency network. The upper layer represents the natural gas network model, while the lower layer represents the power network model. The blue edges indicate the relationships between nodes within independent subnets, and the red dashed lines represent the interdependent edges predicted by this method.</p>
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<p>Random edge situation: (<b>a</b>) the change process of natural connectivity index of three dependent networks under random edge attack; (<b>b</b>) the change process of geodesic vulnerability index of three dependent networks under random edge attack; (<b>c</b>) the change process of network efficiency index of three dependent networks under random edge attack. The red “TZ” represents the change curve of the homogeneous interdependent network model, the blue “YZ” represents the change curve of the heterogeneous interdependent network model, and the green “BW” represents the change curve of the modular interdependent network model obtained by the prediction method in this paper. The horizontal axis represents the number of edges removed, and the vertical axis represents the value of the network robustness evaluation metric.</p>
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<p>High-betweenness edge attack situation. (<b>a</b>) The change process of natural connectivity index of three dependent networks under high-betweenness edge attack; (<b>b</b>) the change process of geodesic vulnerability index of three dependent networks under high-betweenness edge attack; (<b>c</b>) the change process of network efficiency index of three dependent networks under high-betweenness edge attack. The red “TZ” represents the change curve of the homogeneous interdependent network model, the blue “YZ” represents the change curve of the heterogeneous interdependent network model, and the green “BW” represents the change curve of the modular interdependent network model obtained by the prediction method in this paper. The horizontal axis represents the number of edges removed, and the vertical axis represents the value of the network robustness evaluation metric.</p>
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<p>Course network.</p>
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<p>Competency network model. CX is innovation competency, RD is software development Competency, XJ is system integration competency, MG is modeling competency, YD is hardware development competency, XG is project management competency, WJ is problem-solving competency.</p>
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<p>Course edge-based model.</p>
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<p>Course–competency dependency network.</p>
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<p>Accuracy of course and competency target prediction. The horizontal axis in the figure is the course number in <a href="#systems-12-00433-t007" class="html-table">Table 7</a>, and the red dashed line is the average prediction accuracy for all courses.</p>
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<p>Accuracy of competency-supporting course prediction. CX is innovation competency, RD is software development competency, XJ is system integration competency, MG is model construction competency, YD is hardware development competency, XG is project management competency, WJ is problem-solving competency.</p>
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<p>Text network model.</p>
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<p>Add an edge to the network model.</p>
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<p>Text edge-based model.</p>
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<p>Text–question dependency network.</p>
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<p>Information gain values of text and 30 problem-dependent words.</p>
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20 pages, 768 KiB  
Article
Partnering Implementation in SMEs: The Role of Trust
by Arvind Kumar Vidyarthy and Thyagaraj S. Kuthambalayan
Systems 2024, 12(10), 432; https://doi.org/10.3390/systems12100432 - 14 Oct 2024
Viewed by 742
Abstract
Resource Dependence Theory suggests that (a) power balance with resource interdependency, (b) formal/informal procedures for resource exchange, and (c) matching in goals and operational philosophies positively affect partnering implementation (information exchange and joint decision-making). Additionally, improved partnering implementation positive affects commitment fulfillment and [...] Read more.
Resource Dependence Theory suggests that (a) power balance with resource interdependency, (b) formal/informal procedures for resource exchange, and (c) matching in goals and operational philosophies positively affect partnering implementation (information exchange and joint decision-making). Additionally, improved partnering implementation positive affects commitment fulfillment and dispute resolution. In a setting where SMEs supply to small local retailers, the SMEs do not suffer from low bargaining power and rely on informal contracts, and both firms are compatible. The small trading partners in this study predominantly have face-to-face and telephonic interactions with each other (possible due to the small number). Knowledge of one another and a simple transaction process reduces risk and uncertainty, and leads to trust. In this study, trust is a contextual factor, and we aim to determine if there is a positive effect of (a), (b), and (c) on partnering implementation, and if the effect strengthens with an increase in the level of trust. Survey data are used to calibrate and validate a structural equation model independently. Through empirical research, we aim to identify deviations in results, determine the cause of deviation in the study characteristics, and add explanatory power to research findings. Except for the influence of trust on the positive relationship between informal procedures and partnering implementation, the finding fits with the theoretical bases. With a high level of trust, clarity in time, accuracy, and relevance of information exchanged may be lacking, compromising decision-making and adding to the ambiguity of partnering implementation with an informal agreement. Full article
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<p>Theoretical framework.</p>
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<p>Model results.</p>
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15 pages, 1021 KiB  
Article
From Reactive to Proactive Infrastructure Maintenance: Remote Sensing Data and Practical Resilience in the Management of Leaky Pipes
by Rasmus Gahrn-Andersen and Maria Festila
Systems 2024, 12(10), 431; https://doi.org/10.3390/systems12100431 - 14 Oct 2024
Viewed by 792
Abstract
The introduction of remote sensing technologies, AI and big data analytics in the utility sector is warranted by the need to provide critical services with the least disruption to customers, but also to enable preventive maintenance, extend the life cycle of infrastructure components [...] Read more.
The introduction of remote sensing technologies, AI and big data analytics in the utility sector is warranted by the need to provide critical services with the least disruption to customers, but also to enable preventive maintenance, extend the life cycle of infrastructure components and reduce grid loss—or overall, to exhibit ‘durability’ and ‘resilience’ when faced with the certainty of breakage and decay. In this paper, we first explore the concept of ‘resilience’ and the nature of practice from a performativist perspective in order to set the scene for discussing the impact of ‘datafication’ on maintenance practices and infrastructure durability. We then describe an instance of introducing remote sensing technologies in district heating network surveillance and leak detection: drone-operated thermographic cameras and underground wire sensors. Based on insights from this case study, we discuss the specificity of data-driven infrastructure maintenance practices, and what it means to exhibit practical resilience in relation to how such practices unfold, interrelate and evolve over time. We reflect on how the use of remote sensing technologies and data analytics (1) potentially changes district heating workers’ epistemic worlds (i.e., how knowledge emerges, is negotiated and ordered in practice) and (2) provides opportunities for ‘messy’ pipe repair work to tacitly adopt proactive and preventive logics to meet continuously evolving organizational and societal needs. Full article
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<p>Reactive approach to leak detection, on-site.</p>
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<p>Proactive approach to leak detection, context-detached.</p>
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24 pages, 1713 KiB  
Article
Language Styles, Recovery Strategies and Users’ Willingness to Forgive in Generative Artificial Intelligence Service Recovery: A Mixed Study
by Dong Lv, Rui Sun, Qiuhua Zhu, Yue Cheng, Rongrong Wang and Shukun Qin
Systems 2024, 12(10), 430; https://doi.org/10.3390/systems12100430 - 14 Oct 2024
Viewed by 910
Abstract
As the prevalence of generative artificial intelligence (GenAI) in the service sector continues to grow, the impact of the language style and recovery strategies utilized during service failures remains insufficiently explored. This study, grounded in the theory of social presence and dual-process theory, [...] Read more.
As the prevalence of generative artificial intelligence (GenAI) in the service sector continues to grow, the impact of the language style and recovery strategies utilized during service failures remains insufficiently explored. This study, grounded in the theory of social presence and dual-process theory, employed a mixed-method approach combining questionnaire surveys and event-related potential (ERP) experiments to investigate the effect of different language styles (rational vs. humorous) and recovery strategies (gratitude vs. apology) on users’ willingness to forgive during the GenAI service recovery process. It further delves into the chained mediating role of perceived sincerity and social presence in this process. The findings revealed that a humorous language style was more effective in enhancing users’ willingness to forgive compared to a rational style, primarily through the enhancement of users’ perceived sincerity and sense of social presence; recovery strategies played a moderating role in this process, with the positive impact of perceived sincerity on social presence being significantly amplified when the GenAI service adopted an apology strategy. ERP results indicated that a rational language style significantly induced a larger N2 component (cognitive conflict) in apology scenarios, while a humorous style exhibited higher amplitude in the LPP component (positive emotional evaluation). This research unveils the intricate relationships between language style, recovery strategies, and users’ willingness to forgive in the GenAI service recovery process, providing important theoretical foundations and practical guidance for designing more effective GenAI service recovery strategies, and offering new insights into developing more efficacious GenAI service recovery tactics. Full article
(This article belongs to the Topic Theories and Applications of Human-Computer Interaction)
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<p>Theoretical model diagram.</p>
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<p>Experimental condition materials.</p>
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<p>ERPs experiment flow chart.</p>
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<p>ERP waveform map and ERP topographic map for each condition.</p>
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20 pages, 1838 KiB  
Review
The Impact of Artificial Intelligence Marketing on E-Commerce Sales
by Mitra Madanchian
Systems 2024, 12(10), 429; https://doi.org/10.3390/systems12100429 - 12 Oct 2024
Viewed by 7913
Abstract
This review explores the influence of AI marketing on e-commerce sales, examining how AI-driven strategies affect key metrics such as customer acquisition and conversion rates. Given the growing importance of AI in online retail, this paper employs a critical review methodology, analyzing 50 [...] Read more.
This review explores the influence of AI marketing on e-commerce sales, examining how AI-driven strategies affect key metrics such as customer acquisition and conversion rates. Given the growing importance of AI in online retail, this paper employs a critical review methodology, analyzing 50 documents from the Scopus database. The analysis reveals that AI tools like chatbots, personalization engines, and predictive analytics significantly enhance e-commerce performance. The study provides practical and theoretical contributions, offering recommendations for businesses and suggesting future research directions. Full article
(This article belongs to the Special Issue Complex Systems for E-commerce and Business Management)
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<p>Diagram of review method.</p>
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<p>Trend of publications.</p>
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<p>Types of documents based on Scopus categorization.</p>
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<p>Keywords clustering.</p>
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<p>Key findings and contributions of AI marketing in e-commerce.</p>
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23 pages, 680 KiB  
Article
Risk Assessment of Employing Digital Robots in Process Automation
by Onur Dogan, Ozlem Arslan, Esra Cengiz Tirpan and Selcuk Cebi
Systems 2024, 12(10), 428; https://doi.org/10.3390/systems12100428 - 12 Oct 2024
Viewed by 822
Abstract
Using digital technologies is essential to gain a competitive advantage in the global market by adapting to new business models. While digital technologies make business processes efficient, they enable companies to make faster and more accurate decisions by automating daily and routine process [...] Read more.
Using digital technologies is essential to gain a competitive advantage in the global market by adapting to new business models. While digital technologies make business processes efficient, they enable companies to make faster and more accurate decisions by automating daily and routine process tasks. Robotic process automation (RPA) automates routine and repetitive business processes, allowing many jobs performed by humans to be performed faster. This way, advantages such as reduced error rates, reduced costs, increased production speed, and labor productivity are provided. For the successful implementation of RPA, potential risks need to be considered. In this study, failure mode and effect analysis (FMEA) based on decomposed fuzzy sets (DFSs), a new extension of intuitionistic fuzzy sets, has been used to evaluate subjectiveness in expert judgments. Differing from the other extensions of fuzzy set theory, the advantage of DFSs is to simultaneously consider decision-makers’ optimistic and pessimistic answers. Thus, the answer given by the decision-maker to the positive and negative questions on the same subject defines the indeterminacy of the decision-maker, and the method takes this indeterminacy into account in the evaluation. This study assesses and evaluates the potential risks of six digital robots in process automation. Thirteen risks were individually assessed for each automated process. This study found “Sustainability challenge” critical in three processes, “Absence of governance management” in two, and “Security“ in one. Variability in risk importance arose from process vulnerabilities. Full article
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<p>Potential failures of RPA implementations.</p>
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<p>The ranking results of potential risks in each process.</p>
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24 pages, 2160 KiB  
Systematic Review
Sustainability and Information Systems in the Context of Smart Business: A Systematic Review
by Aws A. Magableh, Afnan Y. Audeh, Lana L. Ghraibeh, Mohammed Akour and Ahmed Shihab Albahri
Systems 2024, 12(10), 427; https://doi.org/10.3390/systems12100427 - 12 Oct 2024
Viewed by 1010
Abstract
In recent years, calls have increased for adherence to standards that ensure sustainability, including the global initiative presented by the United Nations with 17 Sustainable Development Goals (SDGs) to ensure a more sustainable future. Achieving these goals is extremely important, as institutions have [...] Read more.
In recent years, calls have increased for adherence to standards that ensure sustainability, including the global initiative presented by the United Nations with 17 Sustainable Development Goals (SDGs) to ensure a more sustainable future. Achieving these goals is extremely important, as institutions have sought to integrate technology, especially business intelligence, into their operations to ensure their achievement. This study aims to provide a systematic literature review of the intersection of information systems and sustainability in business intelligence. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology was utilized to select high-quality studies from various databases, including ScienceDirect, IEEE Xplore, and Scopus, to be included in this review. The methodology resulted in 32 studies taxonomized into four main categories covering different aspects of the intersection of information systems and sustainability. This study discusses integrating information systems and sustainability in various sectors, such as tourism, health, urban, and other sectors, with different technologies, such as Blockchain, IoT, Industry 4.0, and other innovations. Moreover, the information system types implemented to support sustainability practices in different domains are highlighted. Full article
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<p>The main official protocol for PRISMA and study numbers after each phase.</p>
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<p>Sectoral focus of information systems for smart business sustainability.</p>
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<p>Information system sectors for supporting sustainability.</p>
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<p>Sustainable development components.</p>
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<p>Information system technology adopted for sustainability.</p>
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15 pages, 9635 KiB  
Article
An Integrated Smart Manufacturing System for Customer Design Experience
by Ying-Jiun Hsieh, Wan-Ju Huang and Li-Hung Lan
Systems 2024, 12(10), 426; https://doi.org/10.3390/systems12100426 - 12 Oct 2024
Viewed by 626
Abstract
This study focuses on the development of an integrated smart manufacturing system (ISMS) that centers on custom design experiences, utilizing virtual reality (VR) and cloud integration to enhance operational value. Through a Design for Excellence (DFX) approach, this system aims to seamlessly incorporate [...] Read more.
This study focuses on the development of an integrated smart manufacturing system (ISMS) that centers on custom design experiences, utilizing virtual reality (VR) and cloud integration to enhance operational value. Through a Design for Excellence (DFX) approach, this system aims to seamlessly incorporate customer-specific designs into the manufacturing process, thus aligning closely with consumer needs. The research contributes significantly by (1) implementing a customer-focused design system that enhances sales benefits, (2) enabling a smooth transition from design drawings to automated production, thereby increasing manufacturing efficiency, and (3) establishing a digital transformation framework that integrates design, production, and marketing to boost overall business value. Full article
(This article belongs to the Special Issue Research and Practices in Technological Innovation Management Systems)
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<p>Research objectives.</p>
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<p>Innovation engine framework [<a href="#B9-systems-12-00426" class="html-bibr">9</a>].</p>
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<p>System Objectives Setup Using DFX.</p>
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<p>Smart production cloud system framework [<a href="#B16-systems-12-00426" class="html-bibr">16</a>].</p>
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<p>System setup using DFX [<a href="#B21-systems-12-00426" class="html-bibr">21</a>].</p>
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<p>Integrating smart production systems with customer design experience.</p>
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<p>Pre-implementation workflow of the case company.</p>
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<p>Custom drawing software and production modeling interface.</p>
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<p>Custom drawing software design simulation.</p>
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<p>Drawing software interface with smart production operations.</p>
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<p>Custom drawing software-generated VR experience.</p>
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<p>Smart production integration process.</p>
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<p>Smart production and sales order verification.</p>
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<p>Optimal production mode simulation.</p>
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<p>Research results.</p>
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20 pages, 1708 KiB  
Article
Identifying the Determinants of Academic Success: A Machine Learning Approach in Spanish Higher Education
by Ana María Sánchez-Sánchez, Jorge Daniel Mello-Román, Marina Segura and Adolfo Hernández
Systems 2024, 12(10), 425; https://doi.org/10.3390/systems12100425 - 12 Oct 2024
Viewed by 1074
Abstract
Academic performance plays a key role in assessing the quality and equity of a country’s educational system. Studying the aspects or factors that influence university academic performance is an important research opportunity. This article synthesizes research that employs machine learning techniques to identify [...] Read more.
Academic performance plays a key role in assessing the quality and equity of a country’s educational system. Studying the aspects or factors that influence university academic performance is an important research opportunity. This article synthesizes research that employs machine learning techniques to identify the determinants of academic performance in first-year university students. A total of 8700 records from the Complutense University of Madrid corresponding to all incoming students in the academic year 2022–2023 have been analyzed, for which information was available on 28 variables related to university access, academic performance corresponding to the first year, and socioeconomic characteristics. The methodology included feature selection using Random Forest and Extreme Gradient Boosting (XGBoost) to identify the main predictors of academic performance and avoid overfitting in the models, followed by analysis with four different machine learning techniques: Linear Regression, Support Vector Regression, Random Forest, and XGBoost. The models showed similar predictive performance, also highlighting the coincidence in the predictors of academic performance both at the end of the first semester and at the end of the first academic year. Our analysis detects the influence of variables that had not appeared in the literature before, the admission option and the number of enrolled credits. This study contributes to understanding the factors that impact academic performance, providing key information for implementing educational policies aimed at achieving excellence in university education. This includes, for example, peer tutoring and mentoring where high- and low-performing students could participate. Full article
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<p>Bar plots showing importance of variables as determined by RF and XGBoost for predicting academic performance: (<b>a</b>) importance of variables for predicting First-year grade; (<b>b</b>) importance of variables for predicting First-semester grade.</p>
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<p>Scatter plot of actual versus predicted values in test set: (<b>a</b>) First-year grade prediction with RF—feature selection with RF; (<b>b</b>) First-semester grade prediction with RF—feature Selection with XGBoost.</p>
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26 pages, 1495 KiB  
Article
The Influencing Mechanism of Robustness of Emergency Medical Logistics: Mediating Role of Knowledge Integration
by Jianhua Zhang, Ziao Cao, Xiaoqian Zhou, Jinyan Liu and Hongyu Jia
Systems 2024, 12(10), 424; https://doi.org/10.3390/systems12100424 - 11 Oct 2024
Viewed by 744
Abstract
Drawing on the social capital theory, the research examines the impact of network size, network centrality, trust, and regulation on the knowledge integration and robustness of emergency medical logistics. Additionally, the research seeks to provide deeper insight into the link between the variables [...] Read more.
Drawing on the social capital theory, the research examines the impact of network size, network centrality, trust, and regulation on the knowledge integration and robustness of emergency medical logistics. Additionally, the research seeks to provide deeper insight into the link between the variables by studying how knowledge integration mediates the relationship between independent variables and the robustness of emergency medical logistics. The study utilized structural equation modeling to assess the underlying assumptions of the research model. A total of 465 valid questionnaires were collected from government departments, hospitals, social teams, and enterprises. The data processing and analysis were conducted using SPSS 23.0 and AMOS 24.0 software. The study’s outcome indicated that network size and network centrality have indirect effects on the robustness of emergency medical logistics through the intermediate variable of knowledge integration, but neither has a direct effect. Moreover, knowledge integration has a significant positive impact on the robustness of emergency medical logistics. Both trust and regulation have positive effects on the robustness of emergency medical logistics, and they also have positive effects on the robustness of emergency medical logistics through knowledge integration. This study is the inaugural exploration of the correlation between knowledge integration and the robustness of emergency medical logistics. It adds to the literature by providing evidence that knowledge integration is an essential emergency organization’s aide in promoting the robustness of emergency medical logistics. The findings of this study establish a strong theoretical foundation and practical significance for ensuring and improving the level of effectiveness in emergency medical logistics management. Full article
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<p>Study framework.</p>
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<p>The structure equitation model.</p>
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<p>Standardized coefficients of the structure equitation model.</p>
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14 pages, 2492 KiB  
Article
Exponential Random Graph Model Perspective: Formation and Evolution of a Collaborative Innovation Network in China’s New Energy Vehicle Industry
by Mengxing Song, Lingling Guo and Jianwei Shen
Systems 2024, 12(10), 423; https://doi.org/10.3390/systems12100423 - 11 Oct 2024
Viewed by 898
Abstract
In light of the crucial role of collaborative R&D in advancing technology within the new energy vehicle industry, this study seeks to explore ways to overcome the barriers to technological innovation by establishing an effective collaborative innovation network. Utilizing joint patent-authorized data from [...] Read more.
In light of the crucial role of collaborative R&D in advancing technology within the new energy vehicle industry, this study seeks to explore ways to overcome the barriers to technological innovation by establishing an effective collaborative innovation network. Utilizing joint patent-authorized data from China’s new energy vehicles between 2005 and 2019, the collaborative innovation network was developed, and the Exponential Random Graph Model (ERGM) was employed to analyze its formation and evolution mechanisms. The results indicate that the network has undergone significant expansion, closely linked to strong national policy support and the active involvement of innovation participants. The network exhibits effects of expansion, transfer, and closure. External attribute analysis revealed the Matthew effect and geographical compatibility effect and found that organizational compatibility tends to foster complementary cooperation. The findings offer insights into optimizing collaborative innovation networks in the NEVs industry and suggest strategies for policymakers and industry players to promote collaborative innovation. Full article
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<p>Changes in the number of innovation entities and patents.</p>
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<p>Changes in the number of IPCs.</p>
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<p>Network visualization.</p>
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<p>Evaluation of goodness of fit.</p>
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<p>Evaluation of goodness of fit.</p>
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22 pages, 1572 KiB  
Article
A Holistic Quality Improvement Model for Food Services: Integrating Fuzzy Kano and PROMETHEE II
by Claudia Editt Tornero Becerra, Fagner José Coutinho de Melo, Larissa de Arruda Xavier, André Philippi Gonzaga de Albuquerque, Aline Amaral Leal Barbosa, Lucas Ambrósio Bezerra de Oliveira, Raíssa Souto Maior Corrêa de Carvalho and Denise Dumke de Medeiros
Systems 2024, 12(10), 422; https://doi.org/10.3390/systems12100422 - 10 Oct 2024
Viewed by 1037
Abstract
Service quality is crucial to consumer loyalty. However, it is challenging to understand and meet customer expectations effectively. Translating customer feedback into actionable insights in the service industry poses difficulties, particularly without a systematic approach that balances customer requirements with business constraints and [...] Read more.
Service quality is crucial to consumer loyalty. However, it is challenging to understand and meet customer expectations effectively. Translating customer feedback into actionable insights in the service industry poses difficulties, particularly without a systematic approach that balances customer requirements with business constraints and strategic objectives. This study proposes an approach that integrates customer perspectives into multi-criteria decision models by utilizing the fuzzy Kano model to capture service perceptions and minimize response uncertainty. It also uses 5W2H and PROMETHEE II to formulate service improvement actions and establish prioritizations, providing a structured framework for managerial implementation. When implemented in the food truck sector, this framework proves effective in addressing unique challenges, enhancing service quality, boosting customer satisfaction, and fostering loyalty. This study offers a valuable contribution to management by presenting a replicable model that aids managers in making strategic decisions, aligning customer perspectives with management efforts, and providing insights for continuously improving initiatives within the food service industry. Full article
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<p>The proposed model.</p>
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48 pages, 7424 KiB  
Article
Dynamic Evolution Analysis of Digital Technology Multilayer Convergence Networks
by Qianying Wang, Tingli Liu, Tingyang Huang and Qingqing Tian
Systems 2024, 12(10), 421; https://doi.org/10.3390/systems12100421 - 9 Oct 2024
Viewed by 1079
Abstract
This paper constructs a digital technology multilayer convergence network model to explore the mechanisms of digital technology convergence. The analysis is based on patent data from China’s A-share listed companies from 2012 to 2021. The results show a continuous increase in network scale [...] Read more.
This paper constructs a digital technology multilayer convergence network model to explore the mechanisms of digital technology convergence. The analysis is based on patent data from China’s A-share listed companies from 2012 to 2021. The results show a continuous increase in network scale and structural complexity, with intensified cross-domain interactions. The company collaboration subnetwork evolved from decentralization to a more centralized structure, while the technology convergence subnetwork expanded and became increasingly complex. Core technologies maintained dominant positions, and the co-evolution between companies and technologies showed sustained development. This study reveals intricate interdependencies between technological convergence and company collaboration, providing theoretical insights and practical implications for digital technology innovation and strategic decision-making. Full article
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<p>Research framework diagram.</p>
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<p>Evolution process of the multilayer networks: early, mid, and late stages.</p>
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<p>Digital technology cross-domain convergence network model based on patent data.</p>
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<p>Trend in digital technology-related patent applications.</p>
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<p>Structural evolution of the digital technology multilayer convergence networks.</p>
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<p>Evolution of the company collaboration subnetwork.</p>
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<p>Evolution of the technology convergence subnetwork.</p>
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<p>Stacked visualization of multilayer network metrics for company entities.</p>
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<p>Evolution process of multilayer network metrics for company entities: multilayer degree centrality, multilayer eigenvector centrality, and multilayer PageRank centrality.</p>
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<p>The trend in the multilayer degree centrality metric among companies located in different regions of China.</p>
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<p>Stacked visualization of multilayer network metrics for technology entities.</p>
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<p>Evolution process of multilayer network metrics for technology entities: multilayer degree centrality, multilayer eigenvector centrality, and multilayer PageRank centrality.</p>
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<p>Trends in the multilayer degree centrality metric of technological nodes across different regions of China.</p>
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15 pages, 2357 KiB  
Article
Dynamic Multi-Granularity Translation System: DAG-Structured Multi-Granularity Representation and Self-Attention
by Shenrong Lv, Bo Yang, Ruiyang Wang, Siyu Lu, Jiawei Tian, Wenfeng Zheng, Xiaobing Chen and Lirong Yin
Systems 2024, 12(10), 420; https://doi.org/10.3390/systems12100420 - 9 Oct 2024
Viewed by 774
Abstract
In neural machine translation (NMT), the sophistication of word embeddings plays a pivotal role in the model’s ability to render accurate and contextually relevant translations. However, conventional models with single granularity of word segmentation cannot fully embed complex languages like Chinese, where the [...] Read more.
In neural machine translation (NMT), the sophistication of word embeddings plays a pivotal role in the model’s ability to render accurate and contextually relevant translations. However, conventional models with single granularity of word segmentation cannot fully embed complex languages like Chinese, where the granularity of segmentation significantly impacts understanding and translation fidelity. Addressing these challenges, our study introduces the Dynamic Multi-Granularity Translation System (DMGTS), an innovative approach that enhances the Transformer model by incorporating multi-granularity position encoding and multi-granularity self-attention mechanisms. Leveraging a Directed Acyclic Graph (DAG), the DMGTS utilizes four levels of word segmentation for multi-granularity position encoding. Dynamic word embeddings are also introduced to enhance the lexical representation by incorporating multi-granularity features. Multi-granularity self-attention mechanisms are applied to replace the conventional self-attention layers. We evaluate the DMGTS on multiple datasets, where our system demonstrates marked improvements. Notably, it achieves significant enhancements in translation quality, evidenced by increases of 1.16 and 1.55 in Bilingual Evaluation Understudy (BLEU) scores over traditional static embedding methods. These results underscore the efficacy of the DMGTS in refining NMT performance. Full article
(This article belongs to the Section Artificial Intelligence and Digital Systems Engineering)
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<p>Architecture of the proposed DMGTS.</p>
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<p>Performance comparison of different word segmentation methods.</p>
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<p>Comparison of output encoding procedures with and without adding relative positions. (<b>a</b>) SA; (<b>b</b>) the output encoding of the first “I”; (<b>c</b>) the output encoding of the second “I”.</p>
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<p>Multi-granularity position encoding using DAG.</p>
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<p>Multi-granularity relative distance matrix.</p>
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37 pages, 2995 KiB  
Article
Quality Improvement Decisions in Service Supply Chains with Collaborative and Free-Riding Behaviors
by Wenfang Shang, Zaixin Han, Zhaoguang Xu and Tao Li
Systems 2024, 12(10), 419; https://doi.org/10.3390/systems12100419 - 8 Oct 2024
Viewed by 691
Abstract
The dominant position of a member within a service supply chain plays a crucial role in fostering a willingness to improve service quality. Consequently, this study examines a service supply chain comprising a supplier and an integrator, aiming to investigate the influence of [...] Read more.
The dominant position of a member within a service supply chain plays a crucial role in fostering a willingness to improve service quality. Consequently, this study examines a service supply chain comprising a supplier and an integrator, aiming to investigate the influence of four different power structures, namely, supplier-led, integrator-led, supplier–integrator power balance, and supplier–integrator centralized decision, on the decision-making process for service quality improvement by members. The findings highlight that the optimal willingness to improve service quality in a service supply chain is not necessarily infinitely close to 100%, and is influenced by factors such as revenue share, cost, effect, and dominant position. In cases where the collaborative improvement effect is weak, even the dominant member may display a limited willingness, rendering centralized decision-making meaningless. If the collaborative improvement effect surpasses the combined independent improvement effects, the dominant position can help strengthen willingness, although it may not always result in higher profits. Conversely, a power-balanced scenario can be advantageous in achieving the highest profit for the entire supply chain. Full article
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<p>Quality improvements relationship between two members.</p>
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<p>(<b>a</b>) The integrator’s willingness with <math display="inline"><semantics> <mi>α</mi> </semantics></math> (<b>b</b>) The supplier’s willingness with <math display="inline"><semantics> <mi>α</mi> </semantics></math>.</p>
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<p>(<b>a</b>) The integrator’s profit with <math display="inline"><semantics> <mi>α</mi> </semantics></math> under different power structures; (<b>b</b>) The supplier’s profit with <math display="inline"><semantics> <mi>α</mi> </semantics></math> under different power structures.</p>
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<p>(<b>a</b>) The supply chain’s profit with <math display="inline"><semantics> <mi>α</mi> </semantics></math> when <math display="inline"><semantics> <mrow> <mi>λ</mi> <mo>=</mo> <mn>0.6</mn> </mrow> </semantics></math>; (<b>b</b>) The supply chain’s profit with <math display="inline"><semantics> <mi>α</mi> </semantics></math> when <math display="inline"><semantics> <mrow> <mi>λ</mi> <mo>=</mo> <mn>0.4</mn> </mrow> </semantics></math>.</p>
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<p>(<b>a</b>) The willingness with <math display="inline"><semantics> <mrow> <msub> <mi>η</mi> <mi>i</mi> </msub> </mrow> </semantics></math> and <math display="inline"><semantics> <mrow> <msub> <mi>η</mi> <mi>s</mi> </msub> </mrow> </semantics></math>; (<b>b</b>) The relationship between cost and willingness.</p>
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<p>(<b>a</b>) The supplier’s willingness with <math display="inline"><semantics> <mi>α</mi> </semantics></math> when <math display="inline"><semantics> <mrow> <mi>λ</mi> <mo>=</mo> <mn>0.6</mn> </mrow> </semantics></math> and costs change simultaneously; (<b>b</b>) The supplier’s willingness with <math display="inline"><semantics> <mi>α</mi> </semantics></math> when <math display="inline"><semantics> <mrow> <mi>λ</mi> <mo>=</mo> <mn>0.4</mn> </mrow> </semantics></math> and costs change simultaneously.</p>
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<p>(<b>a</b>) The integrator’s willingness with <math display="inline"><semantics> <mi>α</mi> </semantics></math> when <math display="inline"><semantics> <mrow> <mi>λ</mi> <mo>=</mo> <mn>0.6</mn> </mrow> </semantics></math> and costs change uniformly; (<b>b</b>) The integrator’s willingness with <math display="inline"><semantics> <mi>α</mi> </semantics></math> when <math display="inline"><semantics> <mrow> <mi>λ</mi> <mo>=</mo> <mn>0.4</mn> </mrow> </semantics></math> and costs change uniformly.</p>
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<p>Supply chain members’ willingnesses in different cases about improving efficiency.</p>
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<p>Supply chain members’ profits in different cases about improving efficiency.</p>
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<p>The whole supply chain’s profit in different cases about the improving efficiency of dominant supplier.</p>
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20 pages, 3744 KiB  
Article
Optimal Scheduling of PV Panel Cleaning and Policy Implications Considering Uncertain Dusty Weather Conditions in the Middle East
by Abubaker Gebreil Siddig Matar and Heungjo An
Systems 2024, 12(10), 418; https://doi.org/10.3390/systems12100418 - 8 Oct 2024
Viewed by 977
Abstract
Airborne dust easily accumulates on the top of solar panel surfaces and reduces the output power in arid regions. A commonly used mitigation solution for dust deposition issues is cleaning PV panels periodically. However, cleaning frequency affects the economic viability of solar PV [...] Read more.
Airborne dust easily accumulates on the top of solar panel surfaces and reduces the output power in arid regions. A commonly used mitigation solution for dust deposition issues is cleaning PV panels periodically. However, cleaning frequency affects the economic viability of solar PV systems, resulting in a trade-off between cleaning costs and energy loss costs. To address this issue, this study relates several metrics and develops a generic framework based on simulation and optimization to determine the optimal cleaning interval. Based on the computational tests, the optimal cleaning interval in Abu Dhabi is determined to be 34 days, which is longer than the currently recommended cleaning interval of 28 days. This study also identifies that energy recovery is responsive to decreases in unit cleaning costs in the presence of high electricity tariffs, whereas total cost savings show sensitivity when electricity tariffs are low. Finally, this study discusses energy policy implications by presenting an innovative concept involving the introduction of a cleaning subsidy which could reshape energy system cost dynamics, making PV systems economically competitive beyond the conventional levelized cost of electricity. Full article
(This article belongs to the Section Systems Engineering)
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<p>Various factors affecting solar panel efficiency.</p>
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<p>Logic flow chart of the simulation model.</p>
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<p>Daily weather data for three years: (<b>a</b>) temperature, (<b>b</b>) wind speed, (<b>c</b>) particulate matter, and (<b>d</b>) irradiance.</p>
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<p>Validation of the simulation model.</p>
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<p>Simulation output of Case S3exp.</p>
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<p>Optimal cleaning intervals for several cleaning costs: (<b>a</b>) expat tariff (Cases S1–5exp) and (<b>b</b>) UAE national tariff (Cases S1–5exp).</p>
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<p>Optimal cleaning intervals for several cleaning costs: (<b>a</b>) expat tariff (Cases S1–5exp) and (<b>b</b>) UAE national tariff (Cases S1–5exp).</p>
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<p>Sensitivity analysis for cleaning cost and electricity tariff.</p>
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<p>Energy recovery and total cost savings per panel over a lifespan from the base case (S3) based on the unit cleaning cost: (<b>a</b>) expat tariff (Cases S1–5exp) and (<b>b</b>) UAE national tariff (Cases S1–5exp).</p>
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<p>Energy recovery and total cost savings per panel over a lifespan from the base case (S3) based on the unit cleaning cost: (<b>a</b>) expat tariff (Cases S1–5exp) and (<b>b</b>) UAE national tariff (Cases S1–5exp).</p>
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16 pages, 1921 KiB  
Article
Investigation of Traffic System with Traffic Restriction Scheme in the Presence of Automated and Human-Driven Vehicles
by Dong Ding, Yadi Hou, Fulong Shen, Pengyun Chong and Yifeng Niu
Systems 2024, 12(10), 417; https://doi.org/10.3390/systems12100417 - 8 Oct 2024
Viewed by 711
Abstract
In the context of transportation development, the simultaneous emergence of automated vehicles (AVs) and human-driven vehicles (HDVs) can lead to varied traffic system performance. For the purpose of improving traffic systems, this paper proposes a traffic restriction scheme only for HDVs. We develop [...] Read more.
In the context of transportation development, the simultaneous emergence of automated vehicles (AVs) and human-driven vehicles (HDVs) can lead to varied traffic system performance. For the purpose of improving traffic systems, this paper proposes a traffic restriction scheme only for HDVs. We develop a variational inequality (VI) model to describe travel mode and route choices under this restriction scheme and design an algorithm to solve the model. The proposed model and algorithm are applied to a Sioux Falls network example to evaluate the effects of the traffic restriction scheme. Our findings indicate that the scheme improves overall social welfare, with a higher proportion of restricted travelers leading to greater social welfare as well as increased travel demand due to changes in capacity. However, some lower exogenous monetary factors lead to negative social welfare, as the presence of AVs may exacerbate road congestion. Additionally, advancements in technology are needed to adjust the weightings of travel time and congestion level estimates to further enhance social welfare. These results offer valuable insights for traffic demand management in traffic systems with a mix of AVs and HDVs. Full article
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<p>The relationships among the demands.</p>
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<p>The topology of the Sioux Falls network.</p>
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<p>The weights versus the social welfare.</p>
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<p>The amortized costs versus the social welfare.</p>
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<p>Social welfare versus the fare of transit.</p>
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<p>Social welfare versus various headways.</p>
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27 pages, 2585 KiB  
Article
Technology-Driven Financial Risk Management: Exploring the Benefits of Machine Learning for Non-Profit Organizations
by Hao Huang
Systems 2024, 12(10), 416; https://doi.org/10.3390/systems12100416 - 8 Oct 2024
Viewed by 2338
Abstract
This study explores how machine learning can optimize financial risk management for non-profit organizations by evaluating various algorithms aimed at mitigating loan default risks. The findings indicate that ensemble learning models, such as random forest and LightGBM, significantly improve prediction accuracy, thereby enabling [...] Read more.
This study explores how machine learning can optimize financial risk management for non-profit organizations by evaluating various algorithms aimed at mitigating loan default risks. The findings indicate that ensemble learning models, such as random forest and LightGBM, significantly improve prediction accuracy, thereby enabling non-profits to better manage financial risk. In the context of the 2008 subprime mortgage crisis, which underscored the volatility of financial markets, this research assesses a range of risks—credit, operational, liquidity, and market risks—while exploring both traditional machine learning and advanced ensemble techniques, with a particular focus on stacking fusion to enhance model performance. Emphasizing the importance of privacy and adaptive methods, this study advocates for interdisciplinary approaches to overcome limitations such as stress testing, data analysis rule formulation, and regulatory collaboration. The research underscores machine learning’s crucial role in financial risk control and calls on regulatory authorities to reassess existing frameworks to accommodate evolving risks. Additionally, it highlights the need for accurate data type identification and the potential for machine learning to strengthen financial risk management amid uncertainty, promoting interdisciplinary efforts that address broader issues like environmental sustainability and economic development. Full article
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<p>Technology Roadmap.</p>
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<p>System architecture based on machine learning.</p>
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<p>Multi-layer neural network structure.</p>
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<p>Confusion matrix under downsampling.</p>
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<p>Confusion matrix under oversampling.</p>
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<p>Relationship between credit rating and risk limit.</p>
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<p>The performance measurement diagram of the initial logistic regression algorithm.</p>
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<p>Comparison chart of performance metrics of each model.</p>
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21 pages, 1108 KiB  
Review
The Role of Complex Systems in Predictive Analytics for E-Commerce Innovations in Business Management
by Mitra Madanchian
Systems 2024, 12(10), 415; https://doi.org/10.3390/systems12100415 - 5 Oct 2024
Viewed by 1666
Abstract
This review explores the incorporation of complex systems theory into predictive analytics in the e-commerce sector, particularly emphasizing recent advancements in business management. By analyzing the intersection of these two domains, the review emphasizes the potential of complex systems models—including agent-based modeling and [...] Read more.
This review explores the incorporation of complex systems theory into predictive analytics in the e-commerce sector, particularly emphasizing recent advancements in business management. By analyzing the intersection of these two domains, the review emphasizes the potential of complex systems models—including agent-based modeling and network theory—to improve the precision and efficacy of predictive analytics. It will provide a comprehensive overview of the applications of emergent predictive analytics techniques and tools, including real-time data analysis and machine learning, in inventory optimization, dynamic pricing, and personalization of customer experiences. In addition, this review will suggest future research directions to advance the discipline and address the technical, ethical, and practical challenges encountered during this integration phase. Full article
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<p>Overview of complex systems in e-commerce.</p>
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<p>Predictive analytics framework integrating complex systems.</p>
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<p>Business management implications of complex systems-based predictive analytics.</p>
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