Michael Vassilakopoulos

110 papers A 1B 2C 26Misc 2Journal 39Unranked 28
YearRankTypeTitle / Venue / Authors
2026 J jnl
Efficient indexing and querying spatial-keyword data in main memory.
J. Comput. Lang.
Raúl García-Muñoz, Francisco García-García, Antonio Corral, Michael Vassilakopoulos
2025 — conf
Conference Management System Utilizing an LLM-Based Recommendation System for the Reviewer Assignment Problem.
ICEIS (1)
Vaios Stergiopoulos, Michael Vassilakopoulos, Eleni Tousidou, Spyridon Kavvathas, Antonio Corral
2025 — conf
Problematic Video Gaming During the Covid-19 Pandemic: A Case Study of Greece.
IISA
Athanasios Kranas, Vasilios Koutras, Michael Vassilakopoulos, Vassilios S. Verykios
2024 J jnl
An academic recommender system on large citation data based on clustering, graph modeling and deep learning.
Knowl. Inf. Syst.
Vaios Stergiopoulos, Michael Vassilakopoulos, Eleni Tousidou, Antonio Corral
2024 C conf
In-Memory Spatial-Keyword Indexing and Querying: An Experimental Evaluation.
MEDI
Raúl García-Muñoz, Francisco García-García, Antonio Corral, Michael Vassilakopoulos
2023 — conf
Academic Recommender Systems, Status, Challenges and Opportunities.
IISA
Vaios Stergiopoulos, Eleni Tousidou, Michael Vassilakopoulos, Antonio Corral
2023 J jnl
Efficient distributed algorithms for distance join queries in spark-based spatial analytics systems.
Int. J. Gen. Syst.
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos
2023 J jnl
GPU-Based Algorithms for Processing the k Nearest-Neighbor Query on Spatial Data Using Partitioning and Concurrent Kernel Execution.
Int. J. Parallel Program.
Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral, Christos D. Antonopoulos
2023 — conf
Large Language Models versus Natural Language Understanding and Generation.
PCI
Nikitas Karanikolas, Eirini Manga, Nikoletta E. Samaridi, Eleni Tousidou, Michael Vassilakopoulos
2023 — ed.
Proceedings of the 27th Pan-Hellenic Conference on Progress in Computing and Informatics, PCI 2023, Lamia, Greece, November 24-26, 2023
PCI
Nikitas N. Karanikolas, Michael Vassilakopoulos, Catherine Marinagi, Athanasios Kakarountas, Ioannis Voyiatzis
2022 — conf
Hyper-parameters Tuning of Artificial Neural Networks: An Application in the Field of Recommender Systems.
ADBIS (Short Papers)
Vaios Stergiopoulos, Michael Vassilakopoulos, Eleni Tousidou, Antonio Corral
2022 J jnl
Porting disk-based spatial index structures to flash-based solid state drives.
GeoInformatica
Anderson Chaves Carniel, George Roumelis, Ricardo Rodrigues Ciferri, Michael Vassilakopoulos, Antonio Corral, Cristina Dutra de Aguiar Ciferri
2022 — ed.
Proceedings of the 26th Pan-Hellenic Conference on Informatics, PCI 2022, Athens, Greece, November 25-27, 2022
PCI
Nikitas N. Karanikolas, Christos Troussas, Michael Vassilakopoulos, Stefanos D. Kollias, Christos Douligeris, Ioannis Voyiatzis
2021 J jnl
Algorithms for processing the group K nearest-neighbor query on distributed frameworks.
Distributed Parallel Databases
Panagiotis Moutafis, Francisco García-García, George Mavrommatis, Michael Vassilakopoulos, Antonio Corral, Luis Iribarne
2021 J jnl
Big Spatial and Spatio-Temporal Data Analytics Systems.
Trans. Large Scale Data Knowl. Centered Syst.
Polychronis Velentzas, Antonio Corral, Michael Vassilakopoulos
2021 J jnl
Efficient Group K Nearest-Neighbor Spatial Query Processing in Apache Spark.
ISPRS Int. J. Geo Inf.
Panagiotis Moutafis, George Mavrommatis, Michael Vassilakopoulos, Antonio Corral
2021 C conf
Enhancing Sedona (formerly GeoSpark) with Efficient k Nearest Neighbor Join Processing.
MEDI
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos
2021 C conf
GPU-Based Algorithms for Processing the k Nearest-Neighbor Query on Disk-Resident Data.
MEDI
Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral
2021 J jnl
GPU-aided edge computing for processing the
Internet Things
Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral
2021 — ed.
PCI 2021: 25th Pan-Hellenic Conference on Informatics, Volos, Greece, November 26 - 28, 2021
PCI
Michael Vassilakopoulos, Nikitas N. Karanikolas, George Stamoulis, Vassilios S. Verykios, Cleo Sgouropoulou
2020 C conf
A Partitioning GPU-based Algorithm for Processing the k Nearest-Neighbor Query.
MEDES
Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral
2020 J jnl
Efficient distance join query processing in distributed spatial data management systems.
Inf. Sci.
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos, Yannis Manolopoulos
2020 J jnl
Improving Distance-Join Query processing with Voronoi-Diagram based partitioning in SpatialHadoop.
Future Gener. Comput. Syst.
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos
2020 — conf
In-memory k Nearest Neighbor GPU-based Query Processing.
GISTAM
Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral
2020 J jnl
Parallel processing of spatial batch-queries using xBR
Clust. Comput.
George Roumelis, Polychronis Velentzas, Michael Vassilakopoulos, Antonio Corral, Athanasios Fevgas, Yannis Manolopoulos
2019 J jnl
Bulk-loading and bulk-insertion algorithms for xBR
Computing
George Roumelis, Athanasios Fevgas, Michael Vassilakopoulos, Antonio Corral, Panayiotis Bozanis, Yannis Manolopoulos
2019 J jnl
Efficient processing of all-k-nearest-neighbor queries in the MapReduce programming framework.
Data Knowl. Eng.
Panagiotis Moutafis, George Mavrommatis, Michael Vassilakopoulos, Spyros Sioutas
2019 J jnl
Indexing Points on Flash-based Solid State Drives using the xBR+-tree.
J. Inf. Data Manag.
Anderson Chaves Carniel, George Roumelis, Ricardo Rodrigues Ciferri, Michael Vassilakopoulos, Antonio Corral, Cristina Dutra de Aguiar Ciferri
2019 C conf
MRSLICE: Efficient RkNN Query Processing in SpatialHadoop.
MEDI
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos
2019 Misc conf
MapReduce algorithms for the K group nearest-neighbor query.
SAC
Panagiotis Moutafis, Francisco García-García, George Mavrommatis, Michael Vassilakopoulos, Antonio Corral, Luis Iribarne
2018 — conf
An Efficient Flash-aware Spatial Index for Points.
GEOINFO
Anderson Chaves Carniel, George Roumelis, Ricardo Rodrigues Ciferri, Michael Vassilakopoulos, Antonio Corral, Cristina Dutra de Aguiar Ciferri
2018 J jnl
An efficient algorithm for bulk-loading xBR
Comput. Stand. Interfaces
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2018 — ch.
Closest-Pair Query.
Encyclopedia of Database Systems (2nd ed.)
Antonio Corral, Michael Vassilakopoulos
2018 J jnl
Efficient large-scale distance-based join queries in spatialhadoop.
GeoInformatica
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos, Yannis Manolopoulos
2018 — ch.
Quadtrees (and Family).
Encyclopedia of Database Systems (2nd ed.)
Michael Vassilakopoulos, Theodoros Tzouramanis
2018 C conf
Spatial Batch-Queries Processing Using xBR ^+ -trees in Solid-State Drives.
MEDI
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Athanasios Fevgas, Yannis Manolopoulos
2018 C conf
Voronoi-Diagram Based Partitioning for Distance Join Query Processing in SpatialHadoop.
MEDI
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos
2017 C conf
A Comparison of Distributed Spatial Data Management Systems for Processing Distance Join Queries.
ADBIS
Francisco García-García, Antonio Corral, Luis Iribarne, George Mavrommatis, Michael Vassilakopoulos
2017 C conf
Bulk Insertions into xBR ^+ -trees.
MEDI
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2017 J jnl
Efficient query processing on large spatial databases: A performance study.
J. Syst. Softw.
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2017 C conf
RkNN Query Processing in Distributed Spatial Infrastructures: A Performance Study.
MEDI
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos
2017 C conf
SliceNBound: Solving Closest Pairs and Distance Join Queries in Apache Spark.
ADBIS
George Mavrommatis, Panagiotis Moutafis, Michael Vassilakopoulos, Francisco García-García, Antonio Corral
2017 C conf
Use-based Optimization of Spatial Access Methods.
MEDES
Nikolaos Athanasiou, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2016 C conf
Bulk-Loading xBR ^+ -trees.
MEDI
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2016 C conf
Enhancing SpatialHadoop with Closest Pair Queries.
ADBIS
Francisco García-García, Antonio Corral, Luis Iribarne, Michael Vassilakopoulos, Yannis Manolopoulos
2016 — conf
LearneA - Design and Functionalities of a Hybrid Personalized Learning Electronic Assistant.
ICEIS (2)
Nikolaos Mallios, Michael Vassilakopoulos
2016 J jnl
New plane-sweep algorithms for distance-based join queries in spatial databases.
GeoInformatica
George Roumelis, Antonio Corral, Michael Vassilakopoulos, Yannis Manolopoulos
2015 — conf
A diet-guide mobile application for diabetes mellitus management.
Panhellenic Conference on Informatics
Nikolaos Ch. Kasmeridis, Michael Vassilakopoulos
2015 — conf
Plane-Sweep Algorithms for the K Group Nearest-Neighbor Query.
GISTAM
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2015 — conf
RAC: a remote application calling framework for coordination of mobile apps.
Panhellenic Conference on Informatics
Panos Papadopoulos, Thanasis Loukopoulos, Ioannis Anagnostopoulos, Nikolaos Tziritas, Michael Vassilakopoulos
2015 — conf
The K Group Nearest-Neighbor Query on Non-indexed RAM-Resident Data.
GISTAM (Selected Papers)
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2015 — conf
The xBR ^+ -tree: An Efficient Access Method for Points.
DEXA (1)
George Roumelis, Michael Vassilakopoulos, Thanasis Loukopoulos, Antonio Corral, Yannis Manolopoulos
2014 B conf
A New Plane-Sweep Algorithm for the K-Closest-Pairs Query.
SOFSEM
George Roumelis, Michael Vassilakopoulos, Antonio Corral, Yannis Manolopoulos
2014 J jnl
Comparison of Post-Relational and Object-Relational modelling for real-world database applications.
J. Syst. Inf. Technol.
Nikitas N. Karanikolas, Michael Vassilakopoulos
2014 — conf
Database Design of a Geo-environmental Information System .
ICEIS (2)
George Roumelis, Thanasis Loukopoulos, Michael Vassilakopoulos
2012 — conf
A software tool for building a statistical prefix processor.
BCI
Nikitas Karanikolas, Michael Vassilakopoulos, Nektarios Giannoulis
2012 — conf
The Deletion Operation in xBR-Trees.
Panhellenic Conference on Informatics
George Roumelis, Michael Vassilakopoulos, Antonio Corral
2011 — ch.
Ant Colony Optimization and Data Mining.
Next Generation Data Technologies for Collective Computational Intelligence
Ioannis Michelakos, Nikolaos Mallios, Elpiniki I. Papageorgiou, Michael Vassilakopoulos
2011 — conf
Assessment of language skills weaknesses and their confrontation through personalized e-lessons.
CompSysTech
Nikitas N. Karanikolas, Michael Vassilakopoulos
2011 B conf
Join-Queries between Two Spatial Datasets Indexed by a Single R*-Tree.
SOFSEM
Michael Vassilakopoulos, Antonio Corral, Nikitas N. Karanikolas
2011 — conf
Nearest Neighbor Algorithms Using xBR-Trees.
Panhellenic Conference on Informatics
George Roumelis, Michael Vassilakopoulos, Antonio Corral
2011 C conf
Performance Comparison of xBR-trees and R*-trees for Single Dataset Spatial Queries.
ADBIS
George Roumelis, Michael Vassilakopoulos, Antonio Corral
2010 C conf
A Hybrid Classification Algorithm Evaluated on Medical Data.
WETICE
Ioannis Michelakos, Elpiniki I. Papageorgiou, Michael Vassilakopoulos
2010 C conf
A Study of cAnt-Miner2 Parameters Using Medical Data Sets.
WETICE
Ioannis Michelakos, Elpiniki I. Papageorgiou, Michael Vassilakopoulos
2010 — conf
Ant Colony Optimization and Data Mining: Techniques and Trends.
3PGCIC
Ioannis Michelakos, Nikolaos Mallios, Elpiniki I. Papageorgiou, Michael Vassilakopoulos
2009 — ch.
Closest-Pair Query.
Encyclopedia of Database Systems
Antonio Corral, Michael Vassilakopoulos
2009 C conf
Conceptual Universal Database Language: Moving Up the Database Design Levels.
ADBIS
Nikitas N. Karanikolas, Michael Vassilakopoulos
2009 — ch.
Quadtrees (and Family).
Encyclopedia of Database Systems
Michael Vassilakopoulos, Theodoros Tzouramanis
2008 C conf
Predictive Join Processing between Regions and Moving Objects.
ADBIS
Antonio Corral, Manuel Torres, Michael Vassilakopoulos, Yannis Manolopoulos
2006 J jnl
Cost models for distance joins queries using R-trees.
Data Knowl. Eng.
Antonio Corral, Yannis Manolopoulos, Yannis Theodoridis, Michael Vassilakopoulos
2006 Misc conf
Efficient processing of past-future spatiotemporal queries.
SAC
Katerina Raptopoulou, Michael Vassilakopoulos, Yannis Manolopoulos
2006 J jnl
On past-time indexing of moving objects.
J. Syst. Softw.
Katerina Raptopoulou, Michael Vassilakopoulos, Yannis Manolopoulos
2005 J jnl
A spatio-temporal geometry-based model for digital documentation of historical living systems.
Inf. Manag.
Athanasios D. Styliadis, Michael Vassilakopoulos
2005 — ch.
Approximate Computation of Distance-Based Queries.
Spatial Databases
Antonio Corral, Michael Vassilakopoulos
2005 J jnl
On Approximate Algorithms for Distance-Based Queries using R-trees.
Comput. J.
Antonio Corral, Michael Vassilakopoulos
2005 — ch.
Query Processing in Spatial Databases.
Encyclopedia of Database Technologies and Applications
Antonio Corral, Michael Vassilakopoulos
2005 — book
Spatial Databases: Technologies, Techniques and Trends
Spatial Databases
Yannis Manolopoulos, Apostolos Papadopoulos, Michael Vassilakopoulos
2005 — ch.
Spatio-Temporal Indexing Techniques.
Encyclopedia of Database Technologies and Applications
Michael Vassilakopoulos, Antonio Corral
2005 C conf
VA-Files vs. R*-Trees in Distance Join Queries.
ADBIS
Antonio Corral, Alejandro D'Ermiliis, Yannis Manolopoulos, Michael Vassilakopoulos
2004 J jnl
Algorithms for processing K-closest-pair queries in spatial databases.
Data Knowl. Eng.
Antonio Corral, Yannis Manolopoulos, Yannis Theodoridis, Michael Vassilakopoulos
2004 J jnl
Benchmarking access methods for time-evolving regional data.
Data Knowl. Eng.
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
2004 J jnl
Multi-Way Distance Join Queries in Spatial Databases.
GeoInformatica
Antonio Corral, Yannis Manolopoulos, Yannis Theodoridis, Michael Vassilakopoulos
2004 C conf
Towards Quadtree-Based Moving Objects Databases.
ADBIS
Katerina Raptopoulou, Michael Vassilakopoulos, Yannis Manolopoulos
2003 — conf
Access Methods and Query Processing Techniques.
Spatio-Temporal Databases: The CHOROCHRONOS Approach
Adriano Di Pasquale, Luca Forlizzi, Christian S. Jensen, Yannis Manolopoulos, Enrico Nardelli, Dieter Pfoser, Guido Proietti, Simonas Saltenis, Yannis Theodoridis, Theodoros Tzouramanis, Michael Vassilakopoulos
2003 C conf
Distance Join Queries of Multiple Inputs in Spatial Databases.
ADBIS
Antonio Corral, Yannis Manolopoulos, Yannis Theodoridis, Michael Vassilakopoulos
2003 J jnl
Generating Dynamic Raster Data.
IEEE Data Eng. Bull.
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
2003 J jnl
Performance Evaluation of Lazy Deletion Methods in R-trees.
GeoInformatica
Alexandros Nanopoulos, Michael Vassilakopoulos, Yannis Manolopoulos
2002 C conf
Approximate Algorithms for Distance-Based Queries in High-Dimensional Data Spaces Using R-Trees.
ADBIS
Antonio Corral, Joaquín Cañadas, Michael Vassilakopoulos
2002 — conf
Integrating Mobile Agent Infrastructures in Operational ERP Systems.
ICEIS
Apostolos Vontas, Philippos Koutsakas, Christina Athanasopoulou, Adamantios Koumpis, Panos Hatzaras, Yannis Manolopoulos, Michael Vassilakopoulos
2002 J jnl
On the Generation of Time-Evolving Regional Data.
GeoInformatica
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
2001 — conf
Processing Distance-Based Queries in Multidimensional Data Spaces Using R-trees.
Panhellenic Conference on Informatics
Antonio Corral, Joaquín Cañadas, Michael Vassilakopoulos
2001 C conf
The Impact of Buffering on Closest Pairs Queries Using R-Trees.
ADBIS
Antonio Corral, Michael Vassilakopoulos, Yannis Manolopoulos
2001 — conf
Time split linear quadtree for indexing image databases.
ICIP (2)
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
2000 — conf
Closest Pair Queries in Spatial Databases.
SIGMOD Conference
Antonio Corral, Yannis Manolopoulos, Yannis Theodoridis, Michael Vassilakopoulos
2000 — conf
Multiversion Linear Quadtree for Spatio-Temporal Data.
ADBIS-DASFAA
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
2000 J jnl
Overlapping Linear Quadtrees and Spatio-Temporal Query Processing.
Comput. J.
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
2000 J jnl
Performance Evaluation of Parallel S-Trees.
J. Database Manag.
Eleni Tousidou, Michael Vassilakopoulos, Yannis Manolopoulos
1999 — conf
Algorithms for Joining R-Trees and Linear Region Quadtrees.
SSD
Antonio Corral, Michael Vassilakopoulos, Yannis Manolopoulos
1999 — conf
Esquemas de Indexación Espacio-Temporales para Datos Microclimáticos.
JISBD
Antonio Corral, Michael Vassilakopoulos
1999 C conf
Processing of Spatio-Temporal Queries in Image Databases.
ADBIS
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
1998 — conf
Overlapping Linear Quadtrees: A Spatio-Temporal Access Method.
ACM-GIS
Theodoros Tzouramanis, Michael Vassilakopoulos, Yannis Manolopoulos
1997 J jnl
On Sampling Regional Data.
Data Knowl. Eng.
Michael Vassilakopoulos, Yannis Manolopoulos
1996 J jnl
On the creation of quadtrees by using a branching process.
Image Vis. Comput.
Yannis Manolopoulos, Enrico Nardelli, Guido Proietti, Michael Vassilakopoulos
1995 J jnl
A random model for analyzing region quadtrees.
Pattern Recognit. Lett.
Michael Vassilakopoulos, Yannis Manolopoulos
1995 J jnl
Dynamic Inverted Quadtree: A Structure for Pictorial Databases.
Inf. Syst.
Michael Vassilakopoulos, Yannis Manolopoulos
1995 J jnl
Efficiency Analysis of Overlapped Quadtrees.
Nord. J. Comput.
Michael Vassilakopoulos, Yannis Manolopoulos, Brigitte Kröll
1995 A conf
On the Generation of Aggregated Random Spatial Regions.
CIKM
Yannis Manolopoulos, Enrico Nardelli, Guido Proietti, Michael Vassilakopoulos
1994 J jnl
Analytical Comparison of Two Spatial Data Structures.
Inf. Syst.
Michael Vassilakopoulos, Yannis Manolopoulos
1993 C conf
Analytical Results on the Quadtree Storage-Requirements.
CAIP
Michael Vassilakopoulos, Yannis Manolopoulos
1993 J jnl
Overlapping quadtrees for the representation of similar images.
Image Vis. Comput.
Michael Vassilakopoulos, Yannis Manolopoulos, K. Economou