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Revenue Optimization of Service Compositions Using Conditional Request Retries
Due to the inherent stochastic nature of services execution environment within service oriented systems, a runtime adaptation of the given composition may be required. We address a runtime service adaptation mechanism based on conditional retries for ...
Dynamic Service Composition with Service-Dependent QoS Attributes
Service composition is the process of automatically constructing a workflow from individual services so as to satisfy user requirements. When composing service workflows, it is important that both functional and non-functional requirements need to be ...
Variable Granularity Index on Massive Service Processes
Service reuse aims at improving the efficiency of software development and providing common functionalities which are not linked to any particular business process. However, the existing service reuse methods are confined to the reuse of atomic services ...
Ranking Services by Service Network Structure and Service Attributes
Service network analysis is an essential aspect of web service discovery, search, mining and recommendation. Many popular web service networks are content-rich in terms of heterogeneous types of entities, attributes and links. A main challenge for ...
Trace Norm Regularized Matrix Factorization for Service Recommendation
We present in this paper a novel QoS prediction approach to tackle service recommendation, which is to recommend services with the best QoS to users. QoS prediction exploits available QoS information to estimate users' QoS experience from previously ...
Recommending Web Services via Combining Collaborative Filtering with Content-Based Features
With increasing adoption and presence of Web services, designing novel approaches for efficient Web services recommendation has become steadily more important. Existing Web services discovery and recommendation approaches focus on either perishing UDDI ...
SLIM: A Scalable Location-Sensitive Information Monitoring Service
Location-sensitive information monitoring services are a centerpiece of the technology for disseminating content-rich information from massive data streams to mobile users. The key challenges for such monitoring services are characterized by the ...
Online Role Mining without Over-Fitting for Service Recommendation
Due to the popularity of smartphones, finding and recommending suitable services on mobile devices are increasingly important. Recent research has attempted to use role-based approaches to recommend mobile services to other members among the same group ...
Geographic Location-Based Network-Aware QoS Prediction for Service Composition
QoS-aware service composition intends to maximize the global QoS of a composite service while selecting candidate services from different providers with local and global QoS constraints. With more and more candidate services emerging from all over the ...
Selecting Top-k Composite Web Services Using Preference-Aware Dominance Relationship
Web service composition lets users create value-added composite Web services on existent services, where top-k composite services are helpful for users to find a satisfying composite service efficiently. However, with an increasing number of Web ...
Event-Based Multi-level Service Monitoring
Due to the growing pervasiveness of the service paradigm, modern systems are now often built as software as a service, and tend to exploit underlying platforms and virtualized resources also provided as services. Managing such systems requires that we ...
Agent-Based Green Web Service Selection and Dynamic Speed Scaling
With the increase of the energy consumption associated with IT systems and services, energy efficiency is becoming a critical concern in the design, development and management of web service systems. In this paper, both the web service selection and ...
Mashup Service Recommendation Based on User Interest and Social Network
With the rapid development of Web2.0 and its related technologies, Mashup services (i.e., Web applications created by combining two or more Web APIs) are becoming a hot research topic. The explosion of Mashup services, especially the functionally ...
A Social-Aware Service Recommendation Approach for Mashup Creation
Mashup is a user-centric approach to create value-added new services by utilizing and recombining existing service components. However, as services become increasingly more spontaneous and prevalent on the Internet, finding suitable services from which ...
A Framework for Web Service Usage Profiles Discovery
As part of web services life-cycle, providers frequently face decision about changes without a clear understanding of the impact on their clients. The identification of clients' consumption patterns constitute invaluable information to support more ...
Reflecting User Privacy Preferences in Context-Aware Web Services
Personalization or privacy control? is a question one frequently asks himself/herself nowadays with the wide spread of service provision for users on the move. The right to protect intimacy or the right of privacy is a permanent and genuine right of any ...
Privacy-Aware Web Service Composition and Ranking
Service selection is a key issue in the Future Internet, where applications are built by composing services and content offered by different service providers. Most existing service selection schemas only focus on QoS properties of services such as ...
Respecting Privacy in Web Service Composition
Privacy is still among the key challenges that keep hampering DaaS service composition solution. Indeed services may follow different, conflicting privacy specifications with respect to the data they use and provide within a composition. In this paper, ...
Prioritizing Structurally Complex Test Pairs for Validating WS-BPEL Evolutions
Many web services represent their artifacts in the semi-structural format. Such artifacts may or may not be structurally complex. Many existing test case prioritization techniques however treat test cases of different complexity generically. In this ...
An Intrusion Tolerant Identity Management Infrastructure for Cloud Computing Services
Identity management is a central point to the security of large applications such cloud services. The identity providers (IdPs) offer services that handle critical information of users. Usually, this kind of information is stored with special care in ...
Formal Abstraction and Compatibility Checking of Web Services
For automatically composing Web services in a correct manner, information about their behaviors (an abstract model) has to be published in a repository. This abstract model must be sufficient to decide whether two, or more, services are compatible (the ...
Incorporating User Behavior Patterns to Discover Workflow Models from Event Logs
We propose a novel approach to discover workflow models from event logs. The proposed approach addresses two major limitations of current process mining approaches. First, they assume either a single workflow model for the entire event log or the ...