Vassilis J. Tsotras

235 papers A* 22A 8B 34C 5Misc 1Journal 69Unranked 53

Year	Rank	Type	Title / Venue / Authors
2025	B	`conf`	A Brief Introduction to Geospatial Big Data Analytics with Apache Asterixdb. MDM Suryaa Charan Shivakumar, Ian Maxon, Ahmed Eldawy, Michael Carey, Vassilis J. Tsotras
2025	J	`jnl`	On scalable DCEL overlay operations. GeoInformatica Andrés Calderón Romero, Laila Abdelhafeez, Goce Trajcevski, Amr Magdy, Vassilis J. Tsotras
2025	C	`conf`	Optimizing Big Active Data Management Systems. DOLAP Shahrzad Haji Amin Shirazi, Xikui Wang, Michael J. Carey, Vassilis J. Tsotras
2025	J	`jnl`	Principled Mining, Forecasting, and Monitoring of Honeybee Time Series with EBV+. ACM Trans. Knowl. Discov. Data Shamima Hossain, Christos Faloutsos, Boris Baer, Hyoseung Kim, Vassilis J. Tsotras
2025	B	`conf`	Scalable Processing of Moving Flock Patterns. SSTD Andres Oswaldo Calderon Romero, Vassilis J. Tsotras, Petko Bakalov, Marcos R. Vieira
2024	J	`jnl`	A new window Clause for SQL++. VLDB J. James Fang, Dmitry Lychagin, Michael J. Carey, Vassilis J. Tsotras
2024	B	`conf`	Automating Data Science Pipelines with Tensor Completion. IEEE Big Data Shaan Pakala, Bryce Graw, Dawon Ahn, Tam Dinh, Mehnaz Tabassum Mahin, Vassilis J. Tsotras, Jia Chen, Evangelos E. Papalexakis
2024	J	`jnl`	Automating Data Science Pipelines with Tensor Completion. CoRR Shaan Pakala, Bryce Graw, Dawon Ahn, Tam Dinh, Mehnaz Tabassum Mahin, Vassilis J. Tsotras, Jia Chen, Evangelos E. Papalexakis
2024	A	`conf`	EBV: Electronic Bee-Veterinarian for Principled Mining and Forecasting of Honeybee Time Series. SDM Shamima Hossain, Christos Faloutsos, Boris Baer, Hyoseung Kim, Vassilis J. Tsotras
2024	J	`jnl`	EBV: Electronic Bee-Veterinarian for Principled Mining and Forecasting of Honeybee Time Series. CoRR Shamima Hossain, Christos Faloutsos, Boris Baer, Hyoseung Kim, Vassilis J. Tsotras
2024	A*	`conf`	FUDJ: Flexible User-Defined Distributed Joins. ICDE Akil Sevim, Ahmed Eldawy, E. Preston Carman, Michael J. Carey, Vassilis J. Tsotras
2024	J	`jnl`	Optimizing Big Active Data Management Systems. CoRR Shahrzad Haji Amin Shirazi, Xikui Wang, Michael J. Carey, Vassilis J. Tsotras
2024	J	`jnl`	Pyneapple-G: Scalable Spatial Grouping Queries. Proc. VLDB Endow. Laila Abdelhafeez, Andres Calderon, Amr Magdy, Vassilis J. Tsotras
2023	B	`conf`	DDCEL: Efficient Distributed Doubly Connected Edge List for Large Spatial Networks. MDM Laila Abdelhafeez, Amr Magdy, Vassilis J. Tsotras
2023	J	`jnl`	Dwell Regions: Generalized Stay Regions for Streaming and Archival Trajectory Data. ACM Trans. Spatial Algorithms Syst. Reaz Uddin, Mehnaz Tabassum Mahin, Payas Rajan, Chinya V. Ravishankar, Vassilis J. Tsotras
2023	J	`jnl`	Reverse spatial top-k keyword queries. VLDB J. Pritom Ahmed, Ahmed Eldawy, Vagelis Hristidis, Vassilis J. Tsotras
2023	J	`jnl`	Revisiting Runtime Dynamic Optimization for Join Queries in Big Data Management Systems. SIGMOD Rec. Christina Pavlopoulou, Michael J. Carey, Vassilis J. Tsotras
2023	J	`jnl`	SGPAC: generalized scalable spatial GroupBy aggregations over complex polygons. GeoInformatica Laila Abdelhafeez, Amr Magdy, Vassilis J. Tsotras
2023	B	`conf`	Scalable Overlay Operations over DCEL Polygon Layers. SSTD Andrés Calderón Romero, Vassilis J. Tsotras, Amr Magdy
2022	B	`conf`	Revisiting Runtime Dynamic Optimization for Join Queries in Big Data Management Systems. EDBT Christina Pavlopoulou, Michael J. Carey, Vassilis J. Tsotras
2022	J	`jnl`	Subscribing to big data at scale. Distributed Parallel Databases Xikui Wang, Michael J. Carey, Vassilis J. Tsotras
2021	—	`conf`	A brief introduction to geospatial big data analytics with apache AsterixDB. SpatialAPI@SIGSPATIAL Akil Sevim, Mehnaz Tabassum Mahin, Tin Vu, Ian Maxon, Ahmed Eldawy, Michael J. Carey, Vassilis J. Tsotras
2021	J	`jnl`	Bridging BAD Islands: Declarative Data Sharing at Scale. CoRR Xikui Wang, Michael J. Carey, Vassilis J. Tsotras
2021	—	`conf`	Building an end-to-end BAD application. DEBS Shahrzad Haji Amin Shirazi, Michael J. Carey, Vassilis J. Tsotras
2021	J	`jnl`	Comparison and evaluation of state-of-the-art LSM merge policies. VLDB J. Qizhong Mao, Steven Jacobs, Waleed Amjad, Vagelis Hristidis, Vassilis J. Tsotras, Neal E. Young
2021	A	`conf`	Developing an Interdisciplinary Data Science Program. SIGCSE Mariam Salloum, Daniel R. Jeske, Wenxiu Ma, Vagelis Papalexakis, Christian R. Shelton, Vassilis J. Tsotras, Shuheng Zhou
2021	J	`jnl`	Efficient local locking for massively multithreaded in-memory hash-based operators. VLDB J. Bashar Romanous, Skyler Windh, Ildar Absalyamov, Prerna Budhkar, Robert J. Halstead, Walid A. Najjar, Vassilis J. Tsotras
2021	J	`jnl`	Incremental Partitioning for Efficient Spatial Data Analytics. Proc. VLDB Endow. Tin Vu, Ahmed Eldawy, Vagelis Hristidis, Vassilis J. Tsotras
2021	B	`conf`	Reachability Queries with Transfer Decay. MDM Elena Vladislavivna Strzheletska, Vassilis J. Tsotras
2021	J	`jnl`	Reachability and Top-k Reachability Queries with Transfer Decay. CoRR Elena Vladislavivna Strzheletska, Vassilis J. Tsotras
2020	J	`jnl`	BAD to the Bone: Big Active Data at its Core. CoRR Steven Jacobs, Xikui Wang, Michael J. Carey, Vassilis J. Tsotras, Md. Yusuf Sarwar Uddin
2020	J	`jnl`	BAD to the bone: Big Active Data at its core. VLDB J. Steven Jacobs, Xikui Wang, Michael J. Carey, Vassilis J. Tsotras, Md. Yusuf Sarwar Uddin
2020	A*	`conf`	Being Happy with the Least: Achieving α-happiness with Minimum Number of Tuples. ICDE Min Xie, Raymond Chi-Wing Wong, Peng Peng, Vassilis J. Tsotras
2020	—	`conf`	Bridging BAD Islands: Declarative Data Sharing at Scale. IEEE BigData Xikui Wang, Michael J. Carey, Vassilis J. Tsotras
2020	Misc	`conf`	High-Performance Parallel Radix Sort on FPGA. FCCM Bashar Romanous, Mohammadreza Rezvani, Junjie Huang, Daniel Wong, Evangelos E. Papalexakis, Vassilis J. Tsotras, Walid A. Najjar
2020	J	`jnl`	Revisiting Runtime Dynamic Optimization for Join Queries in Big Data Management Systems. CoRR Christina Pavlopoulou, Michael J. Carey, Vassilis J. Tsotras
2020	—	`conf`	Scalable Spatial GroupBy Aggregations Over Complex Polygons. SIGSPATIAL/GIS Laila Abdelhafeez, Amr Magdy, Vassilis J. Tsotras
2020	J	`jnl`	Subscribing to Big Data at Scale. CoRR Xikui Wang, Michael J. Carey, Vassilis J. Tsotras
2019	J	`jnl`	Accelerating In-Memory Database Selections Using Latency Masking Hardware Threads. ACM Trans. Archit. Code Optim. Prerna Budhkar, Ildar Absalyamov, Vasileios Zois, Skyler Windh, Walid A. Najjar, Vassilis J. Tsotras
2019	J	`jnl`	Efficient Main-Memory Top-K Selection For Multicore Architectures. Proc. VLDB Endow. Vasileios Zois, Vassilis J. Tsotras, Walid A. Najjar
2019	—	`conf`	Experimental Evaluation of Bounded-Depth LSM Merge Policies. IEEE BigData Qizhong Mao, Steven Jacobs, Waleed Amjad, Vagelis Hristidis, Vassilis J. Tsotras, Neal E. Young
2019	—	`conf`	Exploiting the Earth's Spherical Geometry to Geolocate Images. ECML/PKDD (2) Mike Izbicki, Evangelos E. Papalexakis, Vassilis J. Tsotras
2019	—	`conf`	GPU Accelerated Top-K Selection With Efficient Early Stopping. ADMS@VLDB Vasileios Zois, Vassilis J. Tsotras, Walid A. Najjar
2019	A	`conf`	Geolocating Tweets in any Language at any Location. CIKM Mike Izbicki, Vagelis Papalexakis, Vassilis J. Tsotras
2018	B	`conf`	A Parallel and Scalable Processor for JSON Data. EDBT Christina Pavlopoulou, E. Preston Carman Jr., Till Westmann, Michael J. Carey, Vassilis J. Tsotras
2018	—	`ch.`	B+-Tree. Encyclopedia of Database Systems (2nd ed.) Donghui Zhang, Kenneth Paul Baclawski, Vassilis J. Tsotras
2018	—	`ch.`	Bitemporal Indexing. Encyclopedia of Database Systems (2nd ed.) Mirella M. Moro, Vassilis J. Tsotras
2018	—	`ch.`	Dense Index. Encyclopedia of Database Systems (2nd ed.) Mirella M. Moro, Vassilis J. Tsotras
2018	—	`ch.`	Extendible Hashing. Encyclopedia of Database Systems (2nd ed.) Donghui Zhang, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2018	—	`ch.`	Grid File (and Family). Encyclopedia of Database Systems (2nd ed.) Apostolos N. Papadopoulos, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2018	—	`ch.`	Hash-Based Indexing. Encyclopedia of Database Systems (2nd ed.) Mirella M. Moro, Donghui Zhang, Vassilis J. Tsotras
2018	—	`ch.`	I/O Model of Computation. Encyclopedia of Database Systems (2nd ed.) Donghui Zhang, Vassilis J. Tsotras
2018	—	`ch.`	Indexed Sequential Access Method. Encyclopedia of Database Systems (2nd ed.) Alex Delis, Vassilis J. Tsotras
2018	—	`conf`	Indexing moving object trajectories with hilbert curves. SIGSPATIAL/GIS Reaz Uddin, Chinya V. Ravishankar, Vassilis J. Tsotras
2018	—	`conf`	Lightweight Cardinality Estimation in LSM-based Systems. SIGMOD Conference Ildar Absalyamov, Michael J. Carey, Vassilis J. Tsotras
2018	—	`ch.`	Linear Hashing. Encyclopedia of Database Systems (2nd ed.) Donghui Zhang, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2018	B	`conf`	Massively parallel skyline computation for processing-in-memory architectures. PACT Vasileios Zois, Divya Gupta, Vassilis J. Tsotras, Walid A. Najjar, Jean-François Roy
2018	—	`ch.`	Primary Index. Encyclopedia of Database Systems (2nd ed.) Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2018	—	`ch.`	Secondary Index. Encyclopedia of Database Systems (2nd ed.) Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2018	—	`ch.`	Sparse Index. Encyclopedia of Database Systems (2nd ed.) Mirella M. Moro, Vassilis J. Tsotras
2018	—	`ch.`	Spatial Indexing Techniques. Encyclopedia of Database Systems (2nd ed.) Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2018	—	`ch.`	Transaction-Time Indexing. Encyclopedia of Database Systems (2nd ed.) Mirella M. Moro, Vassilis J. Tsotras
2018	—	`ch.`	Tree-Based Indexing. Encyclopedia of Database Systems (2nd ed.) Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2018	—	`ch.`	Valid-Time Indexing. Encyclopedia of Database Systems (2nd ed.) Mirella M. Moro, Vassilis J. Tsotras
2017	J	`jnl`	A BAD Demonstration: Towards Big Active Data. Proc. VLDB Endow. Steven Jacobs, Md. Yusuf Sarwar Uddin, Michael J. Carey, Vagelis Hristidis, Vassilis J. Tsotras, Nalini Venkatasubramanian, Yao Wu, Syed Safir, Purvi Kaul, Xikui Wang, Mohiuddin Abdul Qader, Yawei Li
2017	—	`conf`	Assembly Queries: Planning and Discovering Assemblies of Moving Objects Using Partial Information. SIGSPATIAL/GIS Reaz Uddin, Michael N. Rice, Chinya V. Ravishankar, Vassilis J. Tsotras
2017	—	`conf`	Efficient Computation of Top-k Frequent Terms over Spatio-temporal Ranges. SIGMOD Conference Pritom Ahmed, Mahbub Hasan, Abhijith Kashyap, Vagelis Hristidis, Vassilis J. Tsotras
2017	—	`conf`	Efficient Processing of Reachability Queries with Meetings. SIGSPATIAL/GIS Elena Vladislavivna Strzheletska, Vassilis J. Tsotras
2017	—	`ch.`	Index Structures, Extensible. Encyclopedia of GIS Marios Hadjieleftheriou, Erik G. Hoel, Vassilis J. Tsotras
2017	—	`ch.`	Indexing Spatiotemporal Archives. Encyclopedia of GIS Marios Hadjieleftheriou, George Kollios, Vassilis J. Tsotras, Dimitrios Gunopulos
2017	—	`ch.`	Mobile Object Indexing. Encyclopedia of GIS George Kollios, Vassilis J. Tsotras, Dimitrios Gunopulos
2017	—	`ch.`	R-Trees: A Dynamic Index Structure for Spatial Searching. Encyclopedia of GIS Marios Hadjieleftheriou, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2016	—	`conf`	Breaking BAD: a data serving vision for big active data. DEBS Michael J. Carey, Steven Jacobs, Vassilis J. Tsotras
2016	J	`jnl`	DiVA: Using Application-Specific Policies to 'Dive' into Vector Approximations. Comput. J. Konstantinos Tsakalozos, Spiros Evangelatos, Fotis Psallidas, Marcos R. Vieira, Vassilis J. Tsotras, Alex Delis
2016	C	`conf`	FPGA-accelerated group-by aggregation using synchronizing caches. DaMoN Ildar Absalyamov, Prerna Budhkar, Skyler Windh, Robert J. Halstead, Walid A. Najjar, Vassilis J. Tsotras
2016	B	`conf`	OSNI: Searching for Needles in a Haystack of Social Network Data. EDBT Shiwen Cheng, James Fang, Vagelis Hristidis, Harsha V. Madhyastha, Niluthpol Chowdhury Mithun, Dorian Jean Perkins, Amit K. Roy-Chowdhury, Moloud Shahbazi, Vassilis J. Tsotras
2015	—	`conf`	A scalable parallel XQuery processor. IEEE BigData E. Preston Carman Jr., Till Westmann, Vinayak R. Borkar, Michael J. Carey, Vassilis J. Tsotras
2015	—	`conf`	Algebricks: a data model-agnostic compiler backend for big data languages. SoCC Vinayak R. Borkar, Yingyi Bu, E. Preston Carman Jr., Nicola Onose, Till Westmann, Pouria Pirzadeh, Michael J. Carey, Vassilis J. Tsotras
2015	J	`jnl`	Apache VXQuery: A Scalable XQuery Implementation. CoRR E. Preston Carman Jr., Till Westmann, Vinayak R. Borkar, Michael J. Carey, Vassilis J. Tsotras
2015	A	`conf`	FPGA-based Multithreading for In-Memory Hash Joins. CIDR Robert J. Halstead, Ildar Absalyamov, Walid A. Najjar, Vassilis J. Tsotras
2015	J	`jnl`	High performance FPGA and GPU complex pattern matching over spatio-temporal streams. GeoInformatica Roger Moussalli, Ildar Absalyamov, Marcos R. Vieira, Walid A. Najjar, Vassilis J. Tsotras
2015	B	`conf`	RICC: Fast Reachability Query Processing on Large Spatiotemporal Datasets. SSTD Elena Vladislavivna Strzheletska, Vassilis J. Tsotras
2014	J	`jnl`	A study on parallelizing XML path filtering using accelerators. ACM Trans. Embed. Comput. Syst. Roger Moussalli, Mariam Salloum, Robert J. Halstead, Walid A. Najjar, Vassilis J. Tsotras
2014	J	`jnl`	AsterixDB: A Scalable, Open Source BDMS. CoRR Sattam Alsubaiee, Yasser Altowim, Hotham Altwaijry, Alexander Behm, Vinayak R. Borkar, Yingyi Bu, Michael J. Carey, Inci Cetindil, Madhusudan Cheelangi, Khurram Faraaz, Eugenia Gabrielova, Raman Grover, Zachary Heilbron, Young-Seok Kim, Chen Li, Guangqiang Li, Ji Mahn Ok, Nicola Onose, Pouria Pirzadeh, Vassilis J. Tsotras, Rares Vernica, Jian Wen, Till Westmann
2014	J	`jnl`	AsterixDB: A Scalable, Open Source BDMS. Proc. VLDB Endow. Sattam Alsubaiee, Yasser Altowim, Hotham Altwaijry, Alexander Behm, Vinayak R. Borkar, Yingyi Bu, Michael J. Carey, Inci Cetindil, Madhusudan Cheelangi, Khurram Faraaz, Eugenia Gabrielova, Raman Grover, Zachary Heilbron, Young-Seok Kim, Chen Li, Guangqiang Li, Ji Mahn Ok, Nicola Onose, Pouria Pirzadeh, Vassilis J. Tsotras, Rares Vernica, Jian Wen, Till Westmann
2014	B	`conf`	Distributed Diversification of Large Datasets. IC2E Mahbub Hasan, Abdullah Mueen, Vassilis J. Tsotras
2014	B	`conf`	Efficient temporal shortest path queries on evolving social graphs. SSDBM Wenyu Huo, Vassilis J. Tsotras
2014	A*	`conf`	User effort minimization through adaptive diversification. KDD Mahbub Hasan, Abhijith Kashyap, Vagelis Hristidis, Vassilis J. Tsotras
2013	A*	`conf`	Engineering Generalized Shortest Path queries. ICDE Michael N. Rice, Vassilis J. Tsotras
2013	—	`conf`	High-Performance XML Twig Filtering using GPUs. ADMS@VLDB Ildar Absalyamov, Roger Moussalli, Vassilis J. Tsotras, Walid A. Najjar
2013	J	`jnl`	Online Ordering of Overlapping Data Sources. Proc. VLDB Endow. Mariam Salloum, Xin Luna Dong, Divesh Srivastava, Vassilis J. Tsotras
2013	—	`conf`	Parameterized algorithms for generalized traveling salesman problems in road networks. SIGSPATIAL/GIS Michael N. Rice, Vassilis J. Tsotras
2013	J	`jnl`	Revisiting Aggregation for Data Intensive Applications: A Performance Study. CoRR Jian Wen, Vinayak R. Borkar, Michael J. Carey, Vassilis J. Tsotras
2013	C	`conf`	Revisiting aggregation techniques for big data. DOLAP Vassilis J. Tsotras
2013	—	`conf`	STEM: a spatio-temporal miner for bursty activity. SIGMOD Conference Theodoros Lappas, Marcos R. Vieira, Dimitrios Gunopulos, Vassilis J. Tsotras
2013	—	`book`	Spatio-Temporal Databases - Complex Motion Pattern Queries. Marcos R. Vieira, Vassilis J. Tsotras
2013	B	`conf`	Stream-Mode FPGA Acceleration of Complex Pattern Trajectory Querying. SSTD Roger Moussalli, Marcos R. Vieira, Walid A. Najjar, Vassilis J. Tsotras
2012	—	`conf`	A Comparison of Top-k Temporal Keyword Querying over Versioned Text Collections. DEXA (2) Wenyu Huo, Vassilis J. Tsotras
2012	B	`conf`	A Spatial Caching Framework for Map Operations in Geographical Information Systems. MDM Marcos R. Vieira, Petko Bakalov, Erik G. Hoel, Vassilis J. Tsotras
2012	B	`conf`	Bidirectional A* Search with Additive Approximation Bounds. SOCS Michael N. Rice, Vassilis J. Tsotras
2012	A	`conf`	Diversifying query results on semi-structured data. CIKM Mahbub Hasan, Abdullah Mueen, Vassilis J. Tsotras, Eamonn J. Keogh
2012	B	`conf`	Exact Graph Search Algorithms for Generalized Traveling Salesman Path Problems. SEA Michael N. Rice, Vassilis J. Tsotras
2012	J	`jnl`	On The Spatiotemporal Burstiness of Terms CoRR Theodoros Lappas, Marcos R. Vieira, Dimitrios Gunopulos, Vassilis J. Tsotras
2012	J	`jnl`	On The Spatiotemporal Burstiness of Terms. Proc. VLDB Endow. Theodoros Lappas, Marcos R. Vieira, Dimitrios Gunopulos, Vassilis J. Tsotras
2012	B	`conf`	Online Identification of Dwell Regions for Moving Objects. MDM Muhammad Reaz Uddin, Chinya V. Ravishankar, Vassilis J. Tsotras
2012	—	`conf`	Querying Transaction-Time Databases under Branched Schema Evolution. DEXA (1) Wenyu Huo, Vassilis J. Tsotras
2012	J	`jnl`	Route planning with flexible edge restrictions. ACM J. Exp. Algorithmics Robert Geisberger, Michael N. Rice, Peter Sanders, Vassilis J. Tsotras
2011	B	`conf`	A System for Discovering Regions of Interest from Trajectory Data. SSTD Muhammad Reaz Uddin, Chinya V. Ravishankar, Vassilis J. Tsotras
2011	J	`jnl`	ASTERIX: towards a scalable, semistructured data platform for evolving-world models. Distributed Parallel Databases Alexander Behm, Vinayak R. Borkar, Michael J. Carey, Raman Grover, Chen Li, Nicola Onose, Rares Vernica, Alin Deutsch, Yannis Papakonstantinou, Vassilis J. Tsotras
2011	—	`conf`	Complex motion pattern queries for trajectories. ICDE Workshops Marcos R. Vieira, Vassilis J. Tsotras
2011	J	`jnl`	DivDB: A System for Diversifying Query Results. Proc. VLDB Endow. Marcos R. Vieira, Humberto Luiz Razente, Maria Camila Nardini Barioni, Marios Hadjieleftheriou, Divesh Srivastava, Caetano Traina Jr., Vassilis J. Tsotras
2011	J	`jnl`	Editing and versioning for high performance network models in a multiuser environment. GeoInformatica Petko Bakalov, Erik G. Hoel, Wee-Liang Heng, Sudhakar Menon, Vassilis J. Tsotras
2011	—	`conf`	Efficient XML Path Filtering Using GPUs. ADMS@VLDB Roger Moussalli, Robert J. Halstead, Mariam Salloum, Walid A. Najjar, Vassilis J. Tsotras
2011	B	`conf`	Finding Regions of Interest from Trajectory Data. Mobile Data Management (1) Muhammad Reaz Uddin, Chinya V. Ravishankar, Vassilis J. Tsotras
2011	B	`conf`	FlexTrack: A System for Querying Flexible Patterns in Trajectory Databases. SSTD Marcos R. Vieira, Petko Bakalov, Vassilis J. Tsotras
2011	A*	`conf`	Massively parallel XML twig filtering using dynamic programming on FPGAs. ICDE Roger Moussalli, Mariam Salloum, Walid A. Najjar, Vassilis J. Tsotras
2011	A*	`conf`	On query result diversification. ICDE Marcos R. Vieira, Humberto Luiz Razente, Maria Camila Nardini Barioni, Marios Hadjieleftheriou, Divesh Srivastava, Caetano Traina Jr., Vassilis J. Tsotras
2010	—	`conf`	Accelerating XML Query Matching through Custom Stack Generation on FPGAs. HiPEAC Roger Moussalli, Mariam Salloum, Walid A. Najjar, Vassilis J. Tsotras
2010	J	`jnl`	Graph Indexing of Road Networks for Shortest Path Queries with Label Restrictions. Proc. VLDB Endow. Michael N. Rice, Vassilis J. Tsotras
2010	—	`conf`	On continuous monitoring top-k unsafe moving objects. GIS Jian Wen, Vassilis J. Tsotras
2010	A*	`ed.`	Proceedings of the 26th International Conference on Data Engineering, ICDE 2010, March 1-6, 2010, Long Beach, California, USA ICDE Feifei Li, Mirella M. Moro, Shahram Ghandeharizadeh, Jayant R. Haritsa, Gerhard Weikum, Michael J. Carey, Fabio Casati, Edward Y. Chang, Ioana Manolescu, Sharad Mehrotra, Umeshwar Dayal, Vassilis J. Tsotras
2010	B	`conf`	Querying Spatio-temporal Patterns in Mobile Phone-Call Databases. Mobile Data Management Marcos R. Vieira, Enrique Frías-Martínez, Petko Bakalov, Vanessa Frías-Martínez, Vassilis J. Tsotras
2010	B	`conf`	Querying trajectories using flexible patterns. EDBT Marcos R. Vieira, Petko Bakalov, Vassilis J. Tsotras
2010	—	`conf`	Temporal Top- DASFAA (1) Wenyu Huo, Vassilis J. Tsotras
2009	—	`ch.`	B+-Tree. Encyclopedia of Database Systems Donghui Zhang, Kenneth Baclawski, Vassilis J. Tsotras
2009	—	`ch.`	Bi-Temporal Indexing. Encyclopedia of Database Systems Mirella M. Moro, Vassilis J. Tsotras
2009	J	`jnl`	Boosting XML Filtering with a Scalable FPGA-based Architecture CoRR Abhishek Mitra, Marcos R. Vieira, Petko Bakalov, Walid A. Najjar, Vassilis J. Tsotras
2009	A	`conf`	Boosting XML filtering through a scalable FPGA-based architecture. CIDR Abhishek Mitra, Marcos R. Vieira, Petko Bakalov, Vassilis J. Tsotras, Walid A. Najjar
2009	—	`ch.`	Dense Index. Encyclopedia of Database Systems Mirella M. Moro, Vassilis J. Tsotras
2009	—	`conf`	Efficient and Scalable Sequence-Based XML Filtering. WebDB Mariam Salloum, Vassilis J. Tsotras
2009	—	`conf`	Experimental Evaluation of Query Processing Techniques over Multiversion XML Documents. WebDB Adam Woss, Vassilis J. Tsotras
2009	—	`ch.`	Extendible Hashing. Encyclopedia of Database Systems Donghui Zhang, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2009	J	`jnl`	Finding the K highest-ranked answers in a distributed network. Comput. Networks Demetrios Zeinalipour-Yazti, Zografoula Vagena, Vana Kalogeraki, Dimitrios Gunopulos, Vassilis J. Tsotras, Michail Vlachos, Nick Koudas, Divesh Srivastava
2009	—	`ch.`	Grid File (and Family). Encyclopedia of Database Systems Apostolos N. Papadopoulos, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2009	—	`ch.`	Hash-based Indexing. Encyclopedia of Database Systems Mirella M. Moro, Donghui Zhang, Vassilis J. Tsotras
2009	—	`ch.`	I/O Model of Computation. Encyclopedia of Database Systems Donghui Zhang, Vassilis J. Tsotras
2009	—	`ch.`	Indexed Sequential Access Method. Encyclopedia of Database Systems Alex Delis, Vassilis J. Tsotras
2009	J	`jnl`	Letter from the Special Issue Editor. IEEE Data Eng. Bull. Marios Hadjieleftheriou, Vassilis J. Tsotras
2009	—	`ch.`	Linear Hashing. Encyclopedia of Database Systems Donghui Zhang, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2009	J	`jnl`	On continuously monitoring the top-k moving objects with relational group and score functions. ACM SIGSPATIAL Special Jian Wen, Vassilis J. Tsotras, Donghui Zhang
2009	—	`conf`	On-line discovery of flock patterns in spatio-temporal data. GIS Marcos R. Vieira, Petko Bakalov, Vassilis J. Tsotras
2009	—	`ch.`	Primary Index. Encyclopedia of Database Systems Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2009	—	`ch.`	Secondary Index. Encyclopedia of Database Systems Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2009	—	`ch.`	Sparse Index. Encyclopedia of Database Systems Mirella M. Moro, Vassilis J. Tsotras
2009	—	`ch.`	Spatial Indexing Techniques. Encyclopedia of Database Systems Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2009	—	`ch.`	Transaction-Time Indexing. Encyclopedia of Database Systems Mirella M. Moro, Vassilis J. Tsotras
2009	—	`ch.`	Tree-based Indexing. Encyclopedia of Database Systems Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2009	—	`ch.`	Valid-Time Indexing. Encyclopedia of Database Systems Mirella M. Moro, Vassilis J. Tsotras
2009	B	`conf`	Versioning of Network Models in a Multiuser Environment. SSTD Petko Bakalov, Erik G. Hoel, Sudhakar Menon, Vassilis J. Tsotras
2008	A*	`conf`	A Generic Framework for Continuous Motion Pattern Query Evaluation. ICDE Petko Bakalov, Vassilis J. Tsotras
2008	—	`conf`	Editing and versioning dynamic network models. GIS Petko Bakalov, Erik G. Hoel, Wee-Liang Heng, Vassilis J. Tsotras
2008	—	`ch.`	Index Structures, Extensible. Encyclopedia of GIS Marios Hadjieleftheriou, Erik G. Hoel, Vassilis J. Tsotras
2008	—	`ch.`	Indexing Spatio-temporal Archives. Encyclopedia of GIS Marios Hadjieleftheriou, George Kollios, Vassilis J. Tsotras, Dimitrios Gunopulos
2008	J	`jnl`	Letter from the Special Issue Editors. IEEE Data Eng. Bull. Michael J. Carey, Vassilis J. Tsotras
2008	A*	`conf`	Maintaining Connectivity in Dynamic Multimodal Network Models. ICDE Petko Bakalov, Erik G. Hoel, Wee-Liang Heng, Vassilis J. Tsotras
2008	—	`ch.`	Mobile Object Indexing. Encyclopedia of GIS George Kollios, Vassilis J. Tsotras, Dimitrios Gunopulos
2008	J	`jnl`	On computing temporal aggregates with range predicates. ACM Trans. Database Syst. Donghui Zhang, Alexander Markowetz, Vassilis J. Tsotras, Dimitrios Gunopulos, Bernhard Seeger
2008	—	`ch.`	R-Trees - A Dynamic Index Structure for Spatial Searching. Encyclopedia of GIS Marios Hadjieleftheriou, Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
2008	J	`jnl`	XML Structural Summaries. Proc. VLDB Endow. Mirella Moura Moro, Zografoula Vagena, Vassilis J. Tsotras
2007	A*	`conf`	Early Profile Pruning on XML-aware Publish/Subscribe Systems. VLDB Mirella Moura Moro, Petko Bakalov, Vassilis J. Tsotras
2007	B	`conf`	Recent Advances on Querying and Managing Trajectories. SSTDi (slides) Vassilis J. Tsotras
2007	A*	`conf`	RoXSum: Leveraging Data Aggregation and Batch Processing for XML Routing. ICDE Zografoula Vagena, Mirella Moura Moro, Vassilis J. Tsotras
2007	—	`conf`	TS2-tree - an efficient similarity based organization for trajectory data. GIS Petko Bakalov, Eamonn J. Keogh, Vassilis J. Tsotras
2007	—	`conf`	Value-Aware RoXSum: Effective Message Aggregation for XML-Aware Information Dissemination. WebDB Zografoula Vagena, Mirella Moura Moro, Vassilis J. Tsotras
2006	—	`conf`	Continuous Spatiotemporal Trajectory Joins. GSN Petko Bakalov, Vassilis J. Tsotras
2006	A*	`conf`	Evaluating structural summaries as access methods for XML. WWW Mirella Moura Moro, Zografoula Vagena, Vassilis J. Tsotras
2006	J	`jnl`	Indexing spatiotemporal archives. VLDB J. Marios Hadjieleftheriou, George Kollios, Vassilis J. Tsotras, Dimitrios Gunopulos
2006	A	`ed.`	Proceedings of the 2006 ACM CIKM International Conference on Information and Knowledge Management, Arlington, Virginia, USA, November 6-11, 2006 CIKM Philip S. Yu, Vassilis J. Tsotras, Edward A. Fox, Bing Liu
2006	J	`jnl`	Supporting complex queries on multiversion XML documents. ACM Trans. Internet Techn. Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo, Donghui Zhang
2005	—	`conf`	Answering order-based queries over XML data. WWW (Special interest tracks and posters) Zografoula Vagena, Nick Koudas, Divesh Srivastava, Vassilis J. Tsotras
2005	A*	`conf`	Complex Spatio-Temporal Pattern Queries. VLDB Marios Hadjieleftheriou, George Kollios, Petko Bakalov, Vassilis J. Tsotras
2005	—	`conf`	Efficient Handling of Positional Predicates Within XML Query Processing. XSym Zografoula Vagena, Nick Koudas, Divesh Srivastava, Vassilis J. Tsotras
2005	B	`conf`	Efficient trajectory joins using symbolic representations. Mobile Data Management Petko Bakalov, Marios Hadjieleftheriou, Eamonn J. Keogh, Vassilis J. Tsotras
2005	—	`conf`	Indexing Schemes for Efficient Aggregate Computation over Structural Joins. WebDB Priya Mandawat, Vassilis J. Tsotras
2005	J	`jnl`	Indexing mobile objects using dual transformations. VLDB J. George Kollios, Dimitris Papadopoulos, Dimitrios Gunopulos, Vassilis J. Tsotras
2005	J	`jnl`	Optimizing spatial Min/Max aggregations. VLDB J. Donghui Zhang, Vassilis J. Tsotras
2005	J	`jnl`	SaIL: A Spatial Index Library for Efficient Application Integration. GeoInformatica Marios Hadjieleftheriou, Erik G. Hoel, Vassilis J. Tsotras
2005	J	`jnl`	Selectivity estimators for multidimensional range queries over real attributes. VLDB J. Dimitrios Gunopulos, George Kollios, Vassilis J. Tsotras, Carlotta Domeniconi
2005	—	`conf`	The threshold join algorithm for top-k queries in distributed sensor networks. DMSN Demetrios Zeinalipour-Yazti, Zografoula Vagena, Dimitrios Gunopulos, Vana Kalogeraki, Vassilis J. Tsotras, Michail Vlachos, Nick Koudas, Divesh Srivastava
2005	—	`conf`	Time relaxed spatiotemporal trajectory joins. GIS Petko Bakalov, Marios Hadjieleftheriou, Vassilis J. Tsotras
2005	A*	`conf`	Tree-Pattern Queries on a Lightweight XML Processor. VLDB Mirella Moura Moro, Zografoula Vagena, Vassilis J. Tsotras
2004	C	`conf`	Efficient Processing of XML Containment Queries Using Partition-Based Schemes. IDEAS Zografoula Vagena, Mirella Moura Moro, Vassilis J. Tsotras
2004	—	`conf`	Knowledge Management Over Time-Varying Geospatial Datasets. DG.O Peggy Agouris, Anthony Stefanidis, Kate Beard, Mark Gahegan, Vassilis J. Tsotras, Dimitrios Gunopulos
2004	B	`conf`	SaIL: A Library for Efficient Application Integration of Spatial Indices. SSDBM Marios Hadjieleftheriou, Erik G. Hoel, Vassilis J. Tsotras
2004	B	`conf`	Spatio-Temporal Data Services in a Shared-Nothing Environment. SSDBM Marios Hadjieleftheriou, Vassil Kriakov, Yangui Tao, George Kollios, Alex Delis, Vassilis J. Tsotras
2004	—	`conf`	Supporting Branched Versions on XML Documents. RIDE Zografoula Vagena, Mirella Moura Moro, Vassilis J. Tsotras
2004	—	`conf`	Twig Query Processing over Graph-Structured XML Data. WebDB Zografoula Vagena, Mirella Moura Moro, Vassilis J. Tsotras
2003	B	`conf`	On-Line Discovery of Dense Areas in Spatio-temporal Databases. SSTD Marios Hadjieleftheriou, George Kollios, Dimitrios Gunopulos, Vassilis J. Tsotras
2003	—	`conf`	Path-expression Queries over Multiversion XML Documents. WebDB Zografoula Vagena, Vassilis J. Tsotras
2003	B	`conf`	Performance Evaluation of Spatio-temporal Selectivity Estimation Techniques. SSDBM Marios Hadjieleftheriou, George Kollios, Vassilis J. Tsotras
2003	J	`jnl`	Temporal and spatio-temporal aggregations over data streams using multiple time granularities. Inf. Syst. Donghui Zhang, Dimitrios Gunopulos, Vassilis J. Tsotras, Bernhard Seeger
2002	A*	`conf`	Efficient Aggregation over Objects with Extent. PODS Donghui Zhang, Vassilis J. Tsotras, Dimitrios Gunopulos
2002	B	`conf`	Efficient Complex Query Support for Multiversion XML Documents. EDBT Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo, Donghui Zhang
2002	B	`conf`	Efficient Indexing of Spatiotemporal Objects. EDBT Marios Hadjieleftheriou, George Kollios, Vassilis J. Tsotras, Dimitrios Gunopulos
2002	A*	`conf`	Efficient Structural Joins on Indexed XML Documents. VLDB Shu-Yao Chien, Zografoula Vagena, Donghui Zhang, Vassilis J. Tsotras, Carlo Zaniolo
2002	A*	`conf`	Efficient Temporal Join Processing Using Indices. ICDE Donghui Zhang, Vassilis J. Tsotras, Bernhard Seeger
2002	J	`jnl`	Efficient schemes for managing multiversionXML documents. VLDB J. Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo
2002	J	`jnl`	Hashing Methods for Temporal Data. IEEE Trans. Knowl. Data Eng. George Kollios, Vassilis J. Tsotras
2002	C	`conf`	Index Based Processing of Semi-Restrictive Temporal Joins. TIME Donghui Zhang, Vassilis J. Tsotras
2002	J	`jnl`	Indexing Mobile Objects Using Duality Transforms. IEEE Data Eng. Bull. Dimitris Papadopoulos, George Kollios, Dimitrios Gunopulos, Vassilis J. Tsotras
2002	—	`conf`	Indexing Mobile Objects on the Plane. DEXA Workshops Dimitris Papadopoulos, George Kollios, Dimitrios Gunopulos, Vassilis J. Tsotras
2002	B	`conf`	Temporal Aggregation over Data Streams Using Multiple Granularities. EDBT Donghui Zhang, Dimitrios Gunopulos, Vassilis J. Tsotras, Bernhard Seeger
2001	B	`ed.`	Advances in Spatial and Temporal Databases, 7th International Symposium, SSTD 2001, Redondo Beach, CA, USA, July 12-15, 2001, Proceedings SSTD Christian S. Jensen, Markus Schneider, Bernhard Seeger, Vassilis J. Tsotras
2001	—	`conf`	Copy-Based versus Edit-Based Version Management Schemes for Structured Documents. RIDE-DM Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo
2001	A*	`conf`	Efficient Computation of Temporal Aggregates with Range Predicates. PODS Donghui Zhang, Alexander Markowetz, Vassilis J. Tsotras, Dimitrios Gunopulos, Bernhard Seeger
2001	A*	`conf`	Efficient Management of Multiversion Documents by Object Referencing. VLDB Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo
2001	—	`conf`	Improving Min/Max Aggregation over Spatial Objects. ACM-GIS Donghui Zhang, Vassilis J. Tsotras
2001	J	`jnl`	Indexing Animated Objects Using Spatiotemporal Access Methods. IEEE Trans. Knowl. Data Eng. George Kollios, Vassilis J. Tsotras, Dimitrios Gunopulos, Alex Delis, Marios Hadjieleftheriou
2001	J	`jnl`	Introduction to the Special Section on the Fifth International Workshop on Multimedia Information Systems. IEEE Trans. Knowl. Data Eng. Leana Golubchik, Satish K. Tripathi, Vassilis J. Tsotras
2001	—	`conf`	Storing and Querying Multiversion XML Documents using Durable Node Numbers. WISE (1) Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo, Donghui Zhang
2001	J	`jnl`	XML Document Versioning. SIGMOD Rec. Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo
2000	—	`conf`	Approximating Multi-Dimensional Aggregate Range Queries over Real Attributes. SIGMOD Conference Dimitrios Gunopulos, George Kollios, Vassilis J. Tsotras, Carlotta Domeniconi
2000	—	`conf`	Version Management of XML Documents. WebDB (Informal Proceedings) Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo
2000	—	`conf`	Version Management of XML Documents. WebDB (Selected Papers) Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo
1999	—	`book`	Advanced Database Indexing Yannis Manolopoulos, Yannis Theodoridis, Vassilis J. Tsotras
1999	J	`jnl`	Broadcast scheduling for information distribution. Wirel. Networks Chi-Jiun Su, Leandros Tassiulas, Vassilis J. Tsotras
1999	J	`jnl`	Comparison of Access Methods for Time-Evolving Data. ACM Comput. Surv. Betty Salzberg, Vassilis J. Tsotras
1999	—	`conf`	Indexing Animated Objects. Multimedia Information Systems George Kollios, Dimitrios Gunopulos, Vassilis J. Tsotras
1999	—	`ed.`	MIS '99, 5th Workshop on Multimedia Information Systems, 21-23 October 1999, Indian Wells, California, Proceedings Multimedia Information Systems Leana Golubchik, Vassilis J. Tsotras
1999	—	`conf`	Nearest Neighbor Queries in a Mobile Environment. Spatio-Temporal Database Management George Kollios, Dimitrios Gunopulos, Vassilis J. Tsotras
1999	A*	`conf`	On Indexing Mobile Objects. PODS George Kollios, Dimitrios Gunopulos, Vassilis J. Tsotras
1999	J	`jnl`	Supporting Temporal Views in a Management Information Base. J. Netw. Syst. Manag. Vassilis J. Tsotras, Vidyadhar Phalke, Anil Kumar, B. Gopinath
1998	J	`jnl`	An Extensible Notation for Spatiotemporal Index Queries. SIGMOD Rec. Vassilis J. Tsotras, Christian S. Jensen, Richard T. Snodgrass
1998	J	`jnl`	Designing Access Methods for Bitemporal Databases. IEEE Trans. Knowl. Data Eng. Anil Kumar, Vassilis J. Tsotras, Christos Faloutsos
1996	J	`jnl`	Temporal Database Bibliography Update. SIGMOD Rec. Vassilis J. Tsotras, Anil Kumar
1995	J	`jnl`	A Load-Balanced Parallel Sorting Algorithm for Shared-Nothing Architectures. Distributed Parallel Databases Anil Kumar, Tony T. Lee, Vassilis J. Tsotras
1995	—	`conf`	Access Methods for Bi-Temporal Databases Temporal Databases Anil Kumar, Vassilis J. Tsotras, Christos Faloutsos
1995	J	`jnl`	Efficient Management of Time-Evolving Databases. IEEE Trans. Knowl. Data Eng. Vassilis J. Tsotras, B. Gopinath, George W. Hart
1995	J	`jnl`	Historical Queries Along Multiple Lines of Time Evolution VLDB J. Gad M. Landau, Jeanette P. Schmidt, Vassilis J. Tsotras
1995	J	`jnl`	The Snapshot Index: An I/O-optimal access method for timeslice queries. Inf. Syst. Vassilis J. Tsotras, Nickolas Kangerlaris
1993	A*	`conf`	Efficient Support of Historical Queries for Multiple Lines of Evolution. ICDE Gad M. Landau, Jeanette P. Schmidt, Vassilis J. Tsotras
1992	A*	`conf`	Optimal Versioning of Objects. ICDE Vassilis J. Tsotras, B. Gopinath
1990	A	`conf`	Efficient Algorithms for Managing the History of Evolving Databases. ICDT Vassilis J. Tsotras, B. Gopinath
1990	—	`conf`	Optimally Managing the History of an Evolving Forest. SIGAL International Symposium on Algorithms Vassilis J. Tsotras, B. Gopinath, George W. Hart
1990	—	`conf`	Using universe knowledge and arithmetic to get faster parallel algorithms. SPDP Vassilis J. Tsotras, B. Gopinath, George W. Hart