Michael Vassilakopoulos

Christos Antonopoulos

Int. J. Parallel Program., December, 2023

Efficient distributed algorithms for distance join queries in spark-based spatial analytics systems.

[BibT_eX]

[DOI]

Int. J. Gen. Syst., April, 2023

Large Language Models versus Natural Language Understanding and Generation.

[BibT_eX]

[DOI]

Nikitas Karanikolas

Eirini Manga

Nikoletta E. Samaridi

Proceedings of the 27th Pan-Hellenic Conference on Progress in Computing and Informatics, 2023

Academic Recommender Systems, Status, Challenges and Opportunities.

[BibT_eX]

[DOI]

Vaios Stergiopoulos

Proceedings of the 14th International Conference on Information, 2023

2022

Porting disk-based spatial index structures to flash-based solid state drives.

[BibT_eX]

[DOI]

Anderson Chaves Carniel

Ricardo Rodrigues Ciferri

Cristina Dutra de Aguiar Ciferri

GeoInformatica, 2022

Hyper-parameters Tuning of Artificial Neural Networks: An Application in the Field of Recommender Systems.

[BibT_eX]

[DOI]

Vaios Stergiopoulos

Proceedings of the New Trends in Database and Information Systems, 2022

2021

Big Spatial and Spatio-Temporal Data Analytics Systems.

[BibT_eX]

[DOI]

Trans. Large Scale Data Knowl. Centered Syst., 2021

GPU-aided edge computing for processing the k nearest-neighbor query on SSD-resident data.

[BibT_eX]

[DOI]

Internet Things, 2021

Efficient Group K Nearest-Neighbor Spatial Query Processing in Apache Spark.

[BibT_eX]

[DOI]

ISPRS Int. J. Geo Inf., 2021

Algorithms for processing the group K nearest-neighbor query on distributed frameworks.

[BibT_eX]

[DOI]

Distributed Parallel Databases, 2021

GPU-Based Algorithms for Processing the k Nearest-Neighbor Query on Disk-Resident Data.

[BibT_eX]

[DOI]

Proceedings of the Model and Data Engineering - 10th International Conference, 2021

Enhancing Sedona (formerly GeoSpark) with Efficient k Nearest Neighbor Join Processing.

[BibT_eX]

[DOI]

Proceedings of the Model and Data Engineering - 10th International Conference, 2021

2020

Efficient distance join query processing in distributed spatial data management systems.

[BibT_eX]

[DOI]

Inf. Sci., 2020

Improving Distance-Join Query processing with Voronoi-Diagram based partitioning in SpatialHadoop.

[BibT_eX]

[DOI]

Future Gener. Comput. Syst., 2020

Parallel processing of spatial batch-queries using xBR+-trees in solid-state drives.

[BibT_eX]

[DOI]

Athanasios Fevgas

Clust. Comput., 2020

A Partitioning GPU-based Algorithm for Processing the k Nearest-Neighbor Query.

[BibT_eX]

[DOI]

Proceedings of the MEDES '20: 12th International Conference on Management of Digital EcoSystems, 2020

In-memory k Nearest Neighbor GPU-based Query Processing.

[BibT_eX]

[DOI]

Proceedings of the 6th International Conference on Geographical Information Systems Theory, 2020

2019

Indexing Points on Flash-based Solid State Drives using the xBR+-tree.

[BibT_eX]

[DOI]

Anderson Chaves Carniel

Ricardo Rodrigues Ciferri

Cristina Dutra de Aguiar Ciferri

J. Inf. Data Manag., 2019

Efficient processing of all-k-nearest-neighbor queries in the MapReduce programming framework.

[BibT_eX]

[DOI]

Spyros Sioutas

Data Knowl. Eng., 2019

Bulk-loading and bulk-insertion algorithms for xBR+-trees in Solid State Drives.

[BibT_eX]

[DOI]

Athanasios Fevgas

Panayiotis Bozanis

Computing, 2019

MapReduce algorithms for the K group nearest-neighbor query.

[BibT_eX]

[DOI]

Proceedings of the 34th ACM/SIGAPP Symposium on Applied Computing, 2019

MRSLICE: Efficient RkNN Query Processing in SpatialHadoop.

[BibT_eX]

[DOI]

Proceedings of the Model and Data Engineering - 9th International Conference, 2019

2018

Quadtrees (and Family).

[BibT_eX]

[DOI]

Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Closest-Pair Query.

[BibT_eX]

[DOI]

Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Efficient large-scale distance-based join queries in spatialhadoop.

[BibT_eX]

[DOI]

GeoInformatica, 2018

An efficient algorithm for bulk-loading xBR+-trees.

[BibT_eX]

[DOI]

Comput. Stand. Interfaces, 2018

Spatial Batch-Queries Processing Using xBR ^+ -trees in Solid-State Drives.

[BibT_eX]

[DOI]

Athanasios Fevgas

Proceedings of the Model and Data Engineering - 8th International Conference, 2018

Voronoi-Diagram Based Partitioning for Distance Join Query Processing in SpatialHadoop.

[BibT_eX]

[DOI]

Proceedings of the Model and Data Engineering - 8th International Conference, 2018

An Efficient Flash-aware Spatial Index for Points.

[BibT_eX]

[DOI]

Anderson Chaves Carniel

Ricardo Rodrigues Ciferri

Cristina Dutra de Aguiar Ciferri

Proceedings of the XIX Brazilian Symposium on Geoinformatics, 2018

2017

Efficient query processing on large spatial databases: A performance study.

[BibT_eX]

[DOI]

J. Syst. Softw., 2017

Bulk Insertions into xBR ^+ -trees.

[BibT_eX]

[DOI]

Proceedings of the Model and Data Engineering - 7th International Conference, 2017

RkNN Query Processing in Distributed Spatial Infrastructures: A Performance Study.

[BibT_eX]

[DOI]

Proceedings of the Model and Data Engineering - 7th International Conference, 2017

Use-based Optimization of Spatial Access Methods.

[BibT_eX]

[DOI]

Nikolaos Athanasiou

Proceedings of the 9th International Conference on Management of Digital EcoSystems, 2017

SliceNBound: Solving Closest Pairs and Distance Join Queries in Apache Spark.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 2017

A Comparison of Distributed Spatial Data Management Systems for Processing Distance Join Queries.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 2017

2016

New plane-sweep algorithms for distance-based join queries in spatial databases.

[BibT_eX]

[DOI]

GeoInformatica, 2016

Bulk-Loading xBR ^+ -trees.

[BibT_eX]

[DOI]

Proceedings of the Model and Data Engineering - 6th International Conference, 2016

LearneA - Design and Functionalities of a Hybrid Personalized Learning Electronic Assistant.

[BibT_eX]

[DOI]

Nikolaos Mallios

Proceedings of the ICEIS 2016, 2016

Enhancing SpatialHadoop with Closest Pair Queries.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 2016

2015

RAC: a remote application calling framework for coordination of mobile apps.

[BibT_eX]

[DOI]

Panos Papadopoulos

Thanasis Loukopoulos

Ioannis Anagnostopoulos

Nikolaos Tziritas

Proceedings of the 19th Panhellenic Conference on Informatics, 2015

A diet-guide mobile application for diabetes mellitus management.

[BibT_eX]

[DOI]

Nikolaos Ch. Kasmeridis

Proceedings of the 19th Panhellenic Conference on Informatics, 2015

The K Group Nearest-Neighbor Query on Non-indexed RAM-Resident Data.

[BibT_eX]

[DOI]

Proceedings of the Geographical Information Systems Theory, Applications and Management, 2015

Plane-Sweep Algorithms for the K Group Nearest-Neighbor Query.

[BibT_eX]

[DOI]

Proceedings of the GISTAM 2015, 2015

The xBR ^+ -tree: An Efficient Access Method for Points.

[BibT_eX]

[DOI]

Thanasis Loukopoulos

Proceedings of the Database and Expert Systems Applications, 2015

2014

Comparison of Post-Relational and Object-Relational modelling for real-world database applications.

[BibT_eX]

[DOI]

J. Syst. Inf. Technol., 2014

A New Plane-Sweep Algorithm for the K-Closest-Pairs Query.

[BibT_eX]

[DOI]

Proceedings of the SOFSEM 2014: Theory and Practice of Computer Science, 2014

Database Design of a Geo-environmental Information System .

[BibT_eX]

[DOI]

Thanasis Loukopoulos

Proceedings of the ICEIS 2014, 2014

2012

The Deletion Operation in xBR-Trees.

[BibT_eX]

[DOI]

Proceedings of the 16th Panhellenic Conference on Informatics, PCI 2012, 2012

A software tool for building a statistical prefix processor.

[BibT_eX]

[DOI]

Nikitas Karanikolas

Nektarios Giannoulis

Proceedings of the Balkan Conference in Informatics, 2012, 2012

2011

Ant Colony Optimization and Data Mining.

[BibT_eX]

[DOI]

Nikolaos Mallios

Proceedings of the Next Generation Data Technologies for Collective Computational Intelligence, 2011

Join-Queries between Two Spatial Datasets Indexed by a Single R*-Tree.

[BibT_eX]

[DOI]

Proceedings of the SOFSEM 2011: Theory and Practice of Computer Science, 2011

Nearest Neighbor Algorithms Using xBR-Trees.

[BibT_eX]

[DOI]

Proceedings of the 15th Panhellenic Conference on Informatics, 2011

Assessment of language skills weaknesses and their confrontation through personalized e-lessons.

[BibT_eX]

[DOI]

Proceedings of the 12th International Conference on Computer Systems and Technologies, 2011

Performance Comparison of xBR-trees and R*-trees for Single Dataset Spatial Queries.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 2011

2010

A Study of cAnt-Miner2 Parameters Using Medical Data Sets.

[BibT_eX]

[DOI]

Proceedings of the 19th IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises, 2010

A Hybrid Classification Algorithm Evaluated on Medical Data.

[BibT_eX]

[DOI]

Proceedings of the 19th IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises, 2010

Ant Colony Optimization and Data Mining: Techniques and Trends.

[BibT_eX]

[DOI]

Nikolaos Mallios

Proceedings of the 3PGCIC 2010, 2010

2009

Quadtrees (and Family).

[BibT_eX]

[DOI]

Proceedings of the Encyclopedia of Database Systems, 2009

Closest-Pair Query.

[BibT_eX]

[DOI]

Proceedings of the Encyclopedia of Database Systems, 2009

Conceptual Universal Database Language: Moving Up the Database Design Levels.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 2009

2008

Predictive Join Processing between Regions and Moving Objects.

[BibT_eX]

[DOI]

Manuel Torres

Proceedings of the Advances in Databases and Information Systems, 2008

2006

On past-time indexing of moving objects.

[BibT_eX]

[DOI]

Katerina Raptopoulou

J. Syst. Softw., 2006

Cost models for distance joins queries using R-trees.

[BibT_eX]

[DOI]

Data Knowl. Eng., 2006

Efficient processing of past-future spatiotemporal queries.

[BibT_eX]

[DOI]

Katerina Raptopoulou

Proceedings of the 2006 ACM Symposium on Applied Computing (SAC), 2006

2005

A spatio-temporal geometry-based model for digital documentation of historical living systems.

[BibT_eX]

[DOI]

Athanasios D. Styliadis

Inf. Manag., 2005

On Approximate Algorithms for Distance-Based Queries using R-trees.

[BibT_eX]

[DOI]

Comput. J., 2005

VA-Files vs. R*-Trees in Distance Join Queries.

[BibT_eX]

[DOI]

Alejandro D'Ermiliis

Proceedings of the Advances in Databases and Information Systems, 2005

Approximate Computation of Distance-Based Queries.

[BibT_eX]

Proceedings of the Spatial Databases: Technologies, Techniques and Trends, 2005

Spatio-Temporal Indexing Techniques.

[BibT_eX]

[DOI]

Proceedings of the Encyclopedia of Database Technologies and Applications, 2005

Query Processing in Spatial Databases.

[BibT_eX]

[DOI]

Proceedings of the Encyclopedia of Database Technologies and Applications, 2005

2004

Multi-Way Distance Join Queries in Spatial Databases.

[BibT_eX]

[DOI]

GeoInformatica, 2004

Benchmarking access methods for time-evolving regional data.

[BibT_eX]

[DOI]

Data Knowl. Eng., 2004

Algorithms for processing K-closest-pair queries in spatial databases.

[BibT_eX]

[DOI]

Data Knowl. Eng., 2004

Towards Quadtree-Based Moving Objects Databases.

[BibT_eX]

[DOI]

Katerina Raptopoulou

Proceedings of the Advances in Databases and Information Systems, 2004

2003

Performance Evaluation of Lazy Deletion Methods in R-trees.

[BibT_eX]

[DOI]

Alexandros Nanopoulos

GeoInformatica, 2003

Generating Dynamic Raster Data.

[BibT_eX]

[DOI]

IEEE Data Eng. Bull., 2003

Access Methods and Query Processing Techniques.

[BibT_eX]

[DOI]

Proceedings of the Spatio-Temporal Databases: The CHOROCHRONOS Approach, 2003

Distance Join Queries of Multiple Inputs in Spatial Databases.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 2003

2002

On the Generation of Time-Evolving Regional Data.

[BibT_eX]

[DOI]

GeoInformatica, 2002

Integrating Mobile Agent Infrastructures in Operational ERP Systems.

[BibT_eX]

Apostolos Vontas

Philippos Koutsakas

Christina Athanasopoulou

Adamantios Koumpis

Panos Hatzaras

Proceedings of the ICEIS 2002, 2002

Approximate Algorithms for Distance-Based Queries in High-Dimensional Data Spaces Using R-Trees.

[BibT_eX]

[DOI]

Joaquín Cañadas

Proceedings of the Advances in Databases and Information Systems, 2002

2001

Processing Distance-Based Queries in Multidimensional Data Spaces Using R-trees.

[BibT_eX]

[DOI]

Joaquín Cañadas

Proceedings of the Advances in Informatics, 8th Panhellenic Conference on Informatics, 2001

Time split linear quadtree for indexing image databases.

[BibT_eX]

[DOI]

Proceedings of the 2001 International Conference on Image Processing, 2001

The Impact of Buffering on Closest Pairs Queries Using R-Trees.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 2001

2000

Performance Evaluation of Parallel S-Trees.

[BibT_eX]

[DOI]

J. Database Manag., 2000

Overlapping Linear Quadtrees and Spatio-Temporal Query Processing.

[BibT_eX]

[DOI]

Comput. J., 2000

Closest Pair Queries in Spatial Databases.

[BibT_eX]

[DOI]

Proceedings of the 2000 ACM SIGMOD International Conference on Management of Data, 2000

Multiversion Linear Quadtree for Spatio-Temporal Data.

[BibT_eX]

[DOI]

Proceedings of the Current Issues in Databases and Information Systems, 2000

1999

Algorithms for Joining R-Trees and Linear Region Quadtrees.

[BibT_eX]

[DOI]

Proceedings of the Advances in Spatial Databases, 1999

Esquemas de Indexación Espacio-Temporales para Datos Microclimáticos.

[BibT_eX]

Proceedings of the IV Jornadas de Ingeniería del Software y Bases de Datos (JISBD'99), 1999

Processing of Spatio-Temporal Queries in Image Databases.

[BibT_eX]

[DOI]

Proceedings of the Advances in Databases and Information Systems, 1999

1998

Overlapping Linear Quadtrees: A Spatio-Temporal Access Method.

[BibT_eX]

[DOI]

Proceedings of the ACM-GIS '98, 1998

1997

On Sampling Regional Data.

[BibT_eX]

[DOI]

Data Knowl. Eng., 1997

1996

On the creation of quadtrees by using a branching process.

[BibT_eX]

[DOI]

Enrico Nardelli

Guido Proietti

Image Vis. Comput., 1996

1995

A random model for analyzing region quadtrees.

[BibT_eX]

[DOI]

Pattern Recognit. Lett., 1995

Efficiency Analysis of Overlapped Quadtrees.

[BibT_eX]

Brigitte Kröll

Nord. J. Comput., 1995

Dynamic Inverted Quadtree: A Structure for Pictorial Databases.

[BibT_eX]

[DOI]

Inf. Syst., 1995

On the Generation of Aggregated Random Spatial Regions.

[BibT_eX]

[DOI]

Enrico Nardelli

Guido Proietti

Proceedings of the CIKM '95, Proceedings of the 1995 International Conference on Information and Knowledge Management, November 28, 1995

1994

Analytical Comparison of Two Spatial Data Structures.

[BibT_eX]

[DOI]

Inf. Syst., 1994

1993

Overlapping quadtrees for the representation of similar images.

[BibT_eX]

[DOI]

K. Economou

Image Vis. Comput., 1993

Analytical Results on the Quadtree Storage-Requirements.

[BibT_eX]

[DOI]