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Michael Vassilakopoulos
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- affiliation: University of Thessaly, Greece
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2020 – today
- 2024
- [j38]Vaios Stergiopoulos, Michael Vassilakopoulos, Eleni Tousidou, Antonio Corral:
An academic recommender system on large citation data based on clustering, graph modeling and deep learning. Knowl. Inf. Syst. 66(8): 4463-4496 (2024) - 2023
- [j37]Francisco García-García
, Antonio Corral
Efficient distributed algorithms for distance join queries in spark-based spatial analytics systems. Int. J. Gen. Syst. 52(3): 206-250 (2023) - [j36]Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral, Christos Antonopoulos:
GPU-Based Algorithms for Processing the k Nearest-Neighbor Query on Spatial Data Using Partitioning and Concurrent Kernel Execution. Int. J. Parallel Program. 51(6): 275-308 (2023) - [c56]Vaios Stergiopoulos, Eleni Tousidou, Michael Vassilakopoulos, Antonio Corral:
Academic Recommender Systems, Status, Challenges and Opportunities. IISA 2023: 1-8 - [c55]Nikitas Karanikolas
Large Language Models versus Natural Language Understanding and Generation. PCI 2023: 278-290 - [e4]Nikitas N. Karanikolas, Michael Vassilakopoulos, Catherine Marinagi, Athanasios Kakarountas, Ioannis Voyiatzis:
Proceedings of the 27th Pan-Hellenic Conference on Progress in Computing and Informatics, PCI 2023, Lamia, Greece, November 24-26, 2023. ACM 2023 [contents] - 2022
- [j35]Anderson Chaves Carniel
Porting disk-based spatial index structures to flash-based solid state drives. GeoInformatica 26(1): 253-298 (2022) - [c54]Vaios Stergiopoulos
Hyper-parameters Tuning of Artificial Neural Networks: An Application in the Field of Recommender Systems. ADBIS (Short Papers) 2022: 266-276 - [e3]Nikitas N. Karanikolas, Christos Troussas, Michael Vassilakopoulos, Stefanos D. Kollias, Christos Douligeris, Ioannis Voyiatzis:
Proceedings of the 26th Pan-Hellenic Conference on Informatics, PCI 2022, Athens, Greece, November 25-27, 2022. ACM 2022, ISBN 978-1-4503-9854-1 [contents] - 2021
- [j34]Panagiotis Moutafis
Algorithms for processing the group K nearest-neighbor query on distributed frameworks. Distributed Parallel Databases 39(3): 733-784 (2021) - [j33]Panagiotis Moutafis
Efficient Group K Nearest-Neighbor Spatial Query Processing in Apache Spark. ISPRS Int. J. Geo Inf. 10(11): 763 (2021) - [j32]Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral
GPU-aided edge computing for processing the k nearest-neighbor query on SSD-resident data. Internet Things 15: 100428 (2021) - [j31]Polychronis Velentzas, Antonio Corral
Big Spatial and Spatio-Temporal Data Analytics Systems. Trans. Large Scale Data Knowl. Centered Syst. 47: 155-180 (2021) - [c53]Polychronis Velentzas
GPU-Based Algorithms for Processing the k Nearest-Neighbor Query on Disk-Resident Data. MEDI 2021: 264-278 - [c52]Francisco García-García
Enhancing Sedona (formerly GeoSpark) with Efficient k Nearest Neighbor Join Processing. MEDI 2021: 305-319 - [e2]Michael Vassilakopoulos, Nikitas N. Karanikolas, George Stamoulis, Vassilios S. Verykios, Cleo Sgouropoulou:
PCI 2021: 25th Pan-Hellenic Conference on Informatics, Volos, Greece, November 26 - 28, 2021. ACM 2021, ISBN 978-1-4503-9555-7 [contents] - 2020
- [j30]George Roumelis, Polychronis Velentzas, Michael Vassilakopoulos
Parallel processing of spatial batch-queries using xBR+-trees in solid-state drives. Clust. Comput. 23(3): 1555-1575 (2020) - [j29]Francisco García-García, Antonio Corral
Improving Distance-Join Query processing with Voronoi-Diagram based partitioning in SpatialHadoop. Future Gener. Comput. Syst. 111: 723-740 (2020) - [j28]Francisco García-García, Antonio Corral
Efficient distance join query processing in distributed spatial data management systems. Inf. Sci. 512: 985-1008 (2020) - [c51]Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral:
In-memory k Nearest Neighbor GPU-based Query Processing. GISTAM 2020: 310-317 - [c50]Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral
A Partitioning GPU-based Algorithm for Processing the k Nearest-Neighbor Query. MEDES 2020: 2-9
2010 – 2019
- 2019
- [j27]George Roumelis, Athanasios Fevgas, Michael Vassilakopoulos
Bulk-loading and bulk-insertion algorithms for xBR+-trees in Solid State Drives. Computing 101(10): 1539-1563 (2019) - [j26]Panagiotis Moutafis
Efficient processing of all-k-nearest-neighbor queries in the MapReduce programming framework. Data Knowl. Eng. 121: 42-70 (2019) - [j25]Anderson Chaves Carniel, George Roumelis, Ricardo Rodrigues Ciferri, Michael Vassilakopoulos, Antonio Corral, Cristina Dutra de Aguiar Ciferri:
Indexing Points on Flash-based Solid State Drives using the xBR+-tree. J. Inf. Data Manag. 10(1): 35-48 (2019) - [c49]Francisco García-García, Antonio Corral
MRSLICE: Efficient RkNN Query Processing in SpatialHadoop. MEDI 2019: 235-250 - [c48]Panagiotis Moutafis
MapReduce algorithms for the K group nearest-neighbor query. SAC 2019: 448-455 - 2018
- [j24]George Roumelis, Michael Vassilakopoulos
An efficient algorithm for bulk-loading xBR+-trees. Comput. Stand. Interfaces 57: 83-100 (2018) - [j23]Francisco García-García
Efficient large-scale distance-based join queries in spatialhadoop. GeoInformatica 22(2): 171-209 (2018) - [c47]Anderson Chaves Carniel, George Roumelis, Ricardo Rodrigues Ciferri, Michael Vassilakopoulos, Antonio Corral, Cristina Dutra de Aguiar Ciferri:
An Efficient Flash-aware Spatial Index for Points. GEOINFO 2018: 68-79 - [c46]Francisco García-García
Voronoi-Diagram Based Partitioning for Distance Join Query Processing in SpatialHadoop. MEDI 2018: 251-267 - [c45]George Roumelis, Michael Vassilakopoulos
Spatial Batch-Queries Processing Using xBR ^+ -trees in Solid-State Drives. MEDI 2018: 301-317 - [r6]Antonio Corral, Michael Vassilakopoulos:
Closest-Pair Query. Encyclopedia of Database Systems (2nd ed.) 2018 - [r5]Michael Vassilakopoulos, Theodoros Tzouramanis:
Quadtrees (and Family). Encyclopedia of Database Systems (2nd ed.) 2018 - 2017
- [j22]George Roumelis, Michael Vassilakopoulos
Efficient query processing on large spatial databases: A performance study. J. Syst. Softw. 132: 165-185 (2017) - [c44]George Mavrommatis, Panagiotis Moutafis
SliceNBound: Solving Closest Pairs and Distance Join Queries in Apache Spark. ADBIS 2017: 199-213 - [c43]Francisco García-García
A Comparison of Distributed Spatial Data Management Systems for Processing Distance Join Queries. ADBIS 2017: 214-228 - [c42]Nikolaos Athanasiou, Michael Vassilakopoulos
Use-based Optimization of Spatial Access Methods. MEDES 2017: 65-72 - [c41]George Roumelis, Michael Vassilakopoulos
Bulk Insertions into xBR ^+ -trees. MEDI 2017: 185-199 - [c40]Francisco García-García
RkNN Query Processing in Distributed Spatial Infrastructures: A Performance Study. MEDI 2017: 200-207 - 2016
- [j21]George Roumelis, Antonio Corral
New plane-sweep algorithms for distance-based join queries in spatial databases. GeoInformatica 20(4): 571-628 (2016) - [c39]Francisco García-García
Enhancing SpatialHadoop with Closest Pair Queries. ADBIS 2016: 212-225 - [c38]Nikolaos Mallios, Michael Vassilakopoulos:
LearneA - Design and Functionalities of a Hybrid Personalized Learning Electronic Assistant. ICEIS (2) 2016: 339-344 - [c37]George Roumelis, Michael Vassilakopoulos
Bulk-Loading xBR ^+ -trees. MEDI 2016: 57-71 - 2015
- [c36]George Roumelis, Michael Vassilakopoulos
The xBR ^+ -tree: An Efficient Access Method for Points. DEXA (1) 2015: 43-58 - [c35]George Roumelis, Michael Vassilakopoulos
The K Group Nearest-Neighbor Query on Non-indexed RAM-Resident Data. GISTAM (Selected Papers) 2015: 69-89 - [c34]George Roumelis, Michael Vassilakopoulos, Antonio Corral
Plane-Sweep Algorithms for the K Group Nearest-Neighbor Query. GISTAM 2015: 83-93 - [c33]Nikolaos Ch. Kasmeridis, Michael Vassilakopoulos
A diet-guide mobile application for diabetes mellitus management. Panhellenic Conference on Informatics 2015: 377-381 - [c32]Panos Papadopoulos, Thanasis Loukopoulos, Ioannis Anagnostopoulos, Nikolaos Tziritas, Michael Vassilakopoulos
RAC: a remote application calling framework for coordination of mobile apps. Panhellenic Conference on Informatics 2015: 394-399 - 2014
- [j20]Nikitas N. Karanikolas, Michael Vassilakopoulos
Comparison of Post-Relational and Object-Relational modelling for real-world database applications. J. Syst. Inf. Technol. 16(4): 313-340 (2014) - [c31]George Roumelis, Thanasis Loukopoulos, Michael Vassilakopoulos:
Database Design of a Geo-environmental Information System . ICEIS (2) 2014: 375-382 - [c30]George Roumelis, Michael Vassilakopoulos
A New Plane-Sweep Algorithm for the K-Closest-Pairs Query. SOFSEM 2014: 478-490 - 2012
- [c29]Nikitas Karanikolas, Michael Vassilakopoulos
A software tool for building a statistical prefix processor. BCI 2012: 100-105 - [c28]George Roumelis, Michael Vassilakopoulos
The Deletion Operation in xBR-Trees. Panhellenic Conference on Informatics 2012: 138-143 - 2011
- [c27]George Roumelis, Michael Vassilakopoulos
Performance Comparison of xBR-trees and R*-trees for Single Dataset Spatial Queries. ADBIS 2011: 228-242 - [c26]Nikitas N. Karanikolas, Michael Vassilakopoulos
Assessment of language skills weaknesses and their confrontation through personalized e-lessons. CompSysTech 2011: 478-484 - [c25]George Roumelis, Michael Vassilakopoulos
Nearest Neighbor Algorithms Using xBR-Trees. Panhellenic Conference on Informatics 2011: 51-55 - [c24]Michael Vassilakopoulos
Join-Queries between Two Spatial Datasets Indexed by a Single R*-Tree. SOFSEM 2011: 533-544 - [p2]Ioannis Michelakos, Nikolaos Mallios, Elpiniki I. Papageorgiou
Ant Colony Optimization and Data Mining. Next Generation Data Technologies for Collective Computational Intelligence 2011: 31-60 - 2010
- [c23]Ioannis Michelakos, Nikolaos Mallios, Elpiniki I. Papageorgiou
Ant Colony Optimization and Data Mining: Techniques and Trends. 3PGCIC 2010: 284-289 - [c22]Ioannis Michelakos, Elpiniki I. Papageorgiou
A Hybrid Classification Algorithm Evaluated on Medical Data. WETICE 2010: 98-103 - [c21]Ioannis Michelakos, Elpiniki I. Papageorgiou
A Study of cAnt-Miner2 Parameters Using Medical Data Sets. WETICE 2010: 119-121
2000 – 2009
- 2009
- [c20]Nikitas N. Karanikolas, Michael Vassilakopoulos
Conceptual Universal Database Language: Moving Up the Database Design Levels. ADBIS 2009: 330-346 - [r4]Antonio Corral, Michael Vassilakopoulos:
Closest-Pair Query. Encyclopedia of Database Systems 2009: 368-373 - [r3]Michael Vassilakopoulos, Theodoros Tzouramanis:
Quadtrees (and Family). Encyclopedia of Database Systems 2009: 2219-2225 - 2008
- [c19]Antonio Corral
Predictive Join Processing between Regions and Moving Objects. ADBIS 2008: 46-61 - 2006
- [j19]Antonio Corral
Cost models for distance joins queries using R-trees. Data Knowl. Eng. 57(1): 1-36 (2006) - [j18]Katerina Raptopoulou, Michael Vassilakopoulos
On past-time indexing of moving objects. J. Syst. Softw. 79(8): 1079-1091 (2006) - [c18]Katerina Raptopoulou, Michael Vassilakopoulos, Yannis Manolopoulos:
Efficient processing of past-future spatiotemporal queries. SAC 2006: 68-72 - 2005
- [j17]Antonio Corral
On Approximate Algorithms for Distance-Based Queries using R-trees. Comput. J. 48(2): 220-238 (2005) - [j16]Athanasios D. Styliadis
A spatio-temporal geometry-based model for digital documentation of historical living systems. Inf. Manag. 42(2): 349-359 (2005) - [c17]Antonio Corral
VA-Files vs. R*-Trees in Distance Join Queries. ADBIS 2005: 153-166 - [p1]Antonio Corral, Michael Vassilakopoulos:
Approximate Computation of Distance-Based Queries. Spatial Databases 2005: 130-154 - [e1]Yannis Manolopoulos, Apostolos Papadopoulos, Michael Vassilakopoulos:
Spatial Databases: Technologies, Techniques and Trends. Idea Group 2005, ISBN 1-59140-388-X [contents] - [r2]Antonio Corral
Query Processing in Spatial Databases. Encyclopedia of Database Technologies and Applications 2005: 511-516 - [r1]Michael Vassilakopoulos
Spatio-Temporal Indexing Techniques. Encyclopedia of Database Technologies and Applications 2005: 652-657 - 2004
- [j15]Antonio Corral
Algorithms for processing K-closest-pair queries in spatial databases. Data Knowl. Eng. 49(1): 67-104 (2004) - [j14]Theodoros Tzouramanis, Michael Vassilakopoulos
Benchmarking access methods for time-evolving regional data. Data Knowl. Eng. 49(3): 243-286 (2004) - [j13]Antonio Corral
Multi-Way Distance Join Queries in Spatial Databases. GeoInformatica 8(4): 373-402 (2004) - [c16]Katerina Raptopoulou, Michael Vassilakopoulos, Yannis Manolopoulos:
Towards Quadtree-Based Moving Objects Databases. ADBIS 2004: 230-245 - 2003
- [j12]Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos:
Generating Dynamic Raster Data. IEEE Data Eng. Bull. 26(2): 33-39 (2003) - [j11]Alexandros Nanopoulos, Michael Vassilakopoulos
Performance Evaluation of Lazy Deletion Methods in R-trees. GeoInformatica 7(4): 337-354 (2003) - [c15]Antonio Corral
Distance Join Queries of Multiple Inputs in Spatial Databases. ADBIS 2003: 323-338 - [c14]Adriano Di Pasquale, Luca Forlizzi, Christian S. Jensen
Access Methods and Query Processing Techniques. Spatio-Temporal Databases: The CHOROCHRONOS Approach 2003: 203-261 - 2002
- [j10]Theodoros Tzouramanis, Michael Vassilakopoulos
On the Generation of Time-Evolving Regional Data. GeoInformatica 6(3): 207-231 (2002) - [c13]Antonio Corral
Approximate Algorithms for Distance-Based Queries in High-Dimensional Data Spaces Using R-Trees. ADBIS 2002: 163-176 - [c12]Apostolos Vontas, Philippos Koutsakas, Christina Athanasopoulou, Adamantios Koumpis, Panos Hatzaras, Yannis Manolopoulos, Michael Vassilakopoulos:
Integrating Mobile Agent Infrastructures in Operational ERP Systems. ICEIS 2002: 1107-1110 - 2001
- [c11]Antonio Corral
The Impact of Buffering on Closest Pairs Queries Using R-Trees. ADBIS 2001: 41-54 - [c10]Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos:
Time split linear quadtree for indexing image databases. ICIP (2) 2001: 733-736 - [c9]Antonio Corral
Processing Distance-Based Queries in Multidimensional Data Spaces Using R-trees. Panhellenic Conference on Informatics 2001: 1-18 - 2000
- [j9]Theodoros Tzouramanis, Michael Vassilakopoulos
Overlapping Linear Quadtrees and Spatio-Temporal Query Processing. Comput. J. 43(4): 325-343 (2000) - [j8]Eleni Tousidou, Michael Vassilakopoulos, Yannis Manolopoulos:
Performance Evaluation of Parallel S-Trees. J. Database Manag. 11(3): 28-34 (2000) - [c8]Theodoros Tzouramanis, Michael Vassilakopoulos
Multiversion Linear Quadtree for Spatio-Temporal Data. ADBIS-DASFAA 2000: 279-292 - [c7]Antonio Corral
Closest Pair Queries in Spatial Databases. SIGMOD Conference 2000: 189-200
1990 – 1999
- 1999
- [c6]Theodoros Tzouramanis, Michael Vassilakopoulos
Processing of Spatio-Temporal Queries in Image Databases. ADBIS 1999: 85-97 - [c5]Antonio Corral, Michael Vassilakopoulos:
Esquemas de Indexación Espacio-Temporales para Datos Microclimáticos. JISBD 1999: 61-62 - [c4]Antonio Corral
Algorithms for Joining R-Trees and Linear Region Quadtrees. SSD 1999: 251-269 - 1998
- [c3]Theodoros Tzouramanis, Michael Vassilakopoulos
Overlapping Linear Quadtrees: A Spatio-Temporal Access Method. ACM-GIS 1998: 1-7 - 1997
- [j7]Michael Vassilakopoulos
On Sampling Regional Data. Data Knowl. Eng. 22(3): 309-318 (1997) - 1996
- [j6]Yannis Manolopoulos, Enrico Nardelli, Guido Proietti
On the creation of quadtrees by using a branching process. Image Vis. Comput. 14(2): 159-164 (1996) - 1995
- [j5]Michael Vassilakopoulos
Dynamic Inverted Quadtree: A Structure for Pictorial Databases. Inf. Syst. 20(6): 483-500 (1995) - [j4]Michael Vassilakopoulos, Yannis Manolopoulos, Brigitte Kröll:
Efficiency Analysis of Overlapped Quadtrees. Nord. J. Comput. 2(1): 70-84 (1995) - [j3]Michael Vassilakopoulos
A random model for analyzing region quadtrees. Pattern Recognit. Lett. 16(11): 1137-1145 (1995) - [c2]Yannis Manolopoulos, Enrico Nardelli, Guido Proietti, Michael Vassilakopoulos:
On the Generation of Aggregated Random Spatial Regions. CIKM 1995: 318-325 - 1994
- [j2]Michael Vassilakopoulos
Analytical Comparison of Two Spatial Data Structures. Inf. Syst. 19(7): 569-582 (1994) - 1993
- [j1]Michael Vassilakopoulos
Overlapping quadtrees for the representation of similar images. Image Vis. Comput. 11(5): 257-262 (1993) - [c1]Michael Vassilakopoulos, Yannis Manolopoulos:
Analytical Results on the Quadtree Storage-Requirements. CAIP 1993: 41-48
Coauthor Index
[j38] [j37] [j36] [c56] [j35] [c54] [j34] [j33] [j32] [j31] [c53] [c52] [j30] [j29] [j28] [c51] [c50] [j27] [j25] [c49] [c48] [j24] [j23] [c47] [c46] [c45] [r6] [j22] [c44] [c43] [c42] [c41] [c40] [j21] [c39] [c37] [c36] [c35] [c34] [c30] [c28] [c27] [c25] [c24] [r4] [c19] [j19] [j17] [c17] [p1] [r2] [r1] [j15] [j13] [c15] [c13] [c11] [c9] [c7] [c5] [c4]
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