Timos K. Sellis - researchr alias

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2011

Dynamic Pickup and Delivery with TransfersPanagiotis Bouros, Dimitris Sacharidis, Theodore Dalamagas, Timos K. Sellis. ssd 2011: 112-129 [doi]

Maintaining consistent results of continuous queries under diverse window specificationsKostas Patroumpas, Timos K. Sellis. is, 36(1):42-61, 2011. [doi]

Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2011, Athens, Greece, June 12-16, 2011Timos K. Sellis, Renée J. Miller, Anastasios Kementsietsidis, Yannis Velegrakis, editors, ACM, 2011.

Efficient answering of set containment queries for skewed item distributionsManolis Terrovitis, Panagiotis Bouros, Panos Vassiliadis, Timos K. Sellis, Nikos Mamoulis. edbt 2011: 225-236 [doi]

On enhancing scalability for distributed RDF/S storesGeorge Tsatsanifos, Dimitris Sacharidis, Timos K. Sellis. edbt 2011: 141-152 [doi]

MIDAS: Multi-attribute Indexing for Distributed Architecture SystemsGeorge Tsatsanifos, Dimitris Sacharidis, Timos K. Sellis. ssd 2011: 168-185 [doi]

2010

miRGen 2.0: a database of microRNA genomic information and regulationPanagiotis Alexiou, Thanasis Vergoulis, Martin Gleditzsch, George Prekas, Theodore Dalamagas, Molly Megraw, Ivo Grosse, Timos K. Sellis, Artemis G. Hatzigeorgiou. nar, 38(Database-Issue):137-141, 2010. [doi]

Integrating Keywords and Semantics on Document Annotation and SearchNikos Bikakis, Giorgos Giannopoulos, Theodore Dalamagas, Timos K. Sellis. otm 2010: 921-938 [doi]

GoNTogle: A Tool for Semantic Annotation and SearchGiorgos Giannopoulos, Nikos Bikakis, Theodore Dalamagas, Timos K. Sellis. esws 2010: 376-380 [doi]

Peer coordination through distributed triggersVerena Kantere, Maher Manoubi, Iluju Kiringa, Timos K. Sellis, John Mylopoulos. pvldb, 3(2):1561-1564, 2010. [doi]

Multi-granular Time-Based Sliding Windows over Data StreamsKostas Patroumpas, Timos K. Sellis. time 2010: 146-153 [doi]

Probabilistic contextual skylinesDimitris Sacharidis, Anastasios Arvanitis, Timos K. Sellis. icde 2010: 273-284 [doi]

Ranking and Clustering Web Services Using Multicriteria Dominance RelationshipsDimitrios Skoutas, Dimitris Sacharidis, Alkis Simitsis, Timos K. Sellis. tsc, 3(3):163-177, 2010. [doi]

Evaluation Techniques for Generalized Path Pattern Queries on XML DataXiaoying Wu, Dimitri Theodoratos, Stefanos Souldatos, Theodore Dalamagas, Timos K. Sellis. www, 13(4):441-474, 2010. [doi]

2009

Evaluating Reachability Queries over Path CollectionsPanagiotis Bouros, Spiros Skiadopoulos, Theodore Dalamagas, Dimitris Sacharidis, Timos K. Sellis. ssdbm 2009: 398-416 [doi]

GrouPeer: Dynamic clustering of P2P databasesVerena Kantere, Dimitrios Tsoumakos, Timos K. Sellis, Nick Roussopoulos. is, 34(1):62-86, 2009. [doi]

A tool for mapping discovery over revealing schemasVerena Kantere, Dimos Bousounis, Timos K. Sellis. edbt 2009: 1124-1127 [doi]

Storing and Indexing Spatial Data in P2P SystemsVerena Kantere, Spiros Skiadopoulos, Timos K. Sellis. tkde, 21(2):287-300, 2009. [doi]

DIANA-microT web server: elucidating microRNA functions through target predictionManolis Maragkakis, Martin Reczko, Victor A. Simossis, Panagiotis Alexiou, Giorgos L. Papadopoulos, Theodore Dalamagas, Giorgos Giannopoulos, Georgios I. Goumas, Evangelos Koukis, Kornilios Kourtis, T. Vergoulis, Nectarios Koziris, Timos K. Sellis, Panayotis Tsanakas, Artemis G. Hatzigeorgiou. nar, 37(Web-Server-Issue):273-276, 2009. [doi]

Accurate microRNA target prediction correlates with protein repression levelsManolis Maragkakis, Panagiotis Alexiou, Giorgos L. Papadopoulos, Martin Reczko, Theodore Dalamagas, Giorgos Giannopoulos, George I. Goumas, Evangelos Koukis, Kornilios Kourtis, Victor A. Simossis, Praveen Sethupathy, Thanasis Vergoulis, Nectarios Koziris, Timos K. Sellis, Panayotis Tsanakas, Artemis G. Hatzigeorgiou. bmcbi, 10:295, 2009. [doi]

Rule-Based Management of Schema Changes at ETL SourcesGeorge Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Timos K. Sellis, Yannis Vassiliou. adbis 2010: 55-62 [doi]

Window Update Patterns in Stream OperatorsKostas Patroumpas, Timos K. Sellis. adbis 2009: 118-132 [doi]

Monitoring Orientation of Moving Objects around Focal PointsKostas Patroumpas, Timos K. Sellis. ssd 2009: 228-246 [doi]

Hierarchically compressed wavelet synopsesDimitris Sacharidis, Antonios Deligiannakis, Timos K. Sellis. vldb, 18(1):203-231, 2009. [doi]

Top-::::k:::: dominant web services under multi-criteria matchingDimitrios Skoutas, Dimitris Sacharidis, Alkis Simitsis, Verena Kantere, Timos K. Sellis. edbt 2009: 898-909 [doi]

Ontology-Driven Conceptual Design of ETL Processes Using Graph TransformationsDimitrios Skoutas, Alkis Simitsis, Timos K. Sellis. jods, 13:120-146, 2009. [doi]

Containment of partially specified tree-pattern queries in the presence of dimension graphsDimitri Theodoratos, Pawel Placek, Theodore Dalamagas, Stefanos Souldatos, Timos K. Sellis. vldb, 18(1):233-254, 2009. [doi]

Efficient Evaluation of Generalized Tree-Pattern Queries with Same-Path ConstraintsXiaoying Wu, Dimitri Theodoratos, Stefanos Souldatos, Theodore Dalamagas, Timos K. Sellis. ssdbm 2009: 361-379 [doi]

2008

Modeling and manipulating the structure of hierarchical schemas for the webTheodore Dalamagas, Alexandra Meliou, Timos K. Sellis. isci, 178(4):985-1010, 2008. [doi]

Boosting the ranking function learning process using clusteringGiorgos Giannopoulos, Theodore Dalamagas, Magdalini Eirinaki, Timos K. Sellis. widm 2008: 125-132 [doi]

A framework for semantic grouping in P2P databasesVerena Kantere, Dimitrios Tsoumakos, Timos K. Sellis. is, 33(7-8):611-636, 2008. [doi]

A Simulator for a Mobile Peer-to-Peer Database EnvironmentVerena Kantere, Konstantina Palla, Kostas Patroumpas, Timos K. Sellis. MDM 2008: 223-224 [doi]

Conceptual Synopses of Semantics in Social Networks Sharing Structured DataVerena Kantere, Maria-Eirini Politou, Timos K. Sellis. otm 2008: 1367-1384 [doi]

Hierarchical clustering for OLAP: the CUBE File approachNikos Karayannidis, Timos K. Sellis. vldb, 17(4):621-655, 2008. [doi]

Prioritized Evaluation of Continuous Moving Queries over Streaming LocationsKostas Patroumpas, Timos K. Sellis. ssdbm 2008: 240-257 [doi]

Monitoring continuous queries over streaming locationsKostas Patroumpas, Evi Kefallinou, Timos K. Sellis. gis 2008: 81 [doi]

A heuristic approach for checking containment of generalized tree-pattern queriesPawel Placek, Dimitri Theodoratos, Stefanos Souldatos, Theodore Dalamagas, Timos K. Sellis. CIKM 2008: 551-560 [doi]

On-line discovery of hot motion pathsDimitris Sacharidis, Kostas Patroumpas, Manolis Terrovitis, Verena Kantere, Michalis Potamias, Kyriakos Mouratidis, Timos K. Sellis. edbt 2008: 392-403 [doi]

Caching Dynamic Skyline QueriesDimitris Sacharidis, Panagiotis Bouros, Timos K. Sellis. ssdbm 2008: 455-472 [doi]

Database interoperability through Web Services and ontologiesTimos K. Sellis, Dimitrios Skoutas, K. Staikos. bibe 2008: 1-5 [doi]

Indexing views to route queries in a PDMSLefteris Sidirourgos, Giorgos Kokkinidis, Theodore Dalamagas, Vassilis Christophides, Timos K. Sellis. dpd, 23(1):45-68, 2008. [doi]

Discovery and Selection of Services on the Semantic WebDimitrios Skoutas, Alkis Simitsis, Timos K. Sellis. ercim, 2008(72), 2008. [doi]

Serving the Sky: Discovering and Selecting Semantic Web Services through Dynamic Skyline QueriesDimitrios Skoutas, Dimitris Sacharidis, Alkis Simitsis, Timos K. Sellis. semco 2008: 222-229 [doi]

Efficient Semantic Web Service Discovery in Centralized and P2P EnvironmentsDimitrios Skoutas, Dimitris Sacharidis, Verena Kantere, Timos K. Sellis. semweb 2008: 583-598 [doi]

Efficient evaluation of generalized path pattern queries on XML dataXiaoying Wu, Stefanos Souldatos, Dimitri Theodoratos, Theodore Dalamagas, Timos K. Sellis. WWW 2008: 835-844 [doi]

2007

Mining user navigation patterns for personalizing topic directoriesTheodore Dalamagas, Panagiotis Bouros, Theodore Galanis, Magdalini Eirinaki, Timos K. Sellis. widm 2007: 81-88 [doi]

A Study for the Parameters of a Distributed Framework That Handles Spatial AreasVerena Kantere, Timos K. Sellis. ssd 2007: 385-402 [doi]

Semantic Grouping of Social Networks in P2P Database SettingsVerena Kantere, Dimitrios Tsoumakos, Timos K. Sellis. DEXA 2007: 689-699 [doi]

Handling spatial data in distributed environmentsVerena Kantere, Timos K. Sellis. gis 2007: 3 [doi]

Approximate order-k Voronoi cells over positional streamsKostas Patroumpas, Theofanis Minogiannis, Timos K. Sellis. gis 2007: 36 [doi]

Semantics of Spatially-Aware Windows Over Streaming Moving ObjectsKostas Patroumpas, Timos K. Sellis. MDM 2007: 52-59 [doi]

Online Amnesic Summarization of Streaming LocationsMichalis Potamias, Kostas Patroumpas, Timos K. Sellis. ssd 2007: 148-166 [doi]

ETL Workflows: From Formal Specification to OptimizationTimos K. Sellis, Alkis Simitsis. adbis 2007: 1-11 [doi]

Correction to A Family of Directional Relation Models for Extended Objects Spiros Skiadopoulos, Nikos Sarkas, Timos K. Sellis, Manolis Koubarakis. tkde, 19(10):1448, 2007. [doi]

A Family of Directional Relation Models for Extended ObjectsSpiros Skiadopoulos, Nikos Sarkas, Timos K. Sellis, Manolis Koubarakis. tkde, 19(8):1116-1130, 2007. [doi]

A Ranking Mechanism for SemanticWeb Service DiscoveryDimitrios Skoutas, Alkis Simitsis, Timos K. Sellis. IEEEscc 2007: 41-48 [doi]

Ontology-Based Data Sharing in P2P DatabasesDimitrios Skoutas, Verena Kantere, Alkis Simitsis, Timos K. Sellis. odbis 2008: 117-137 [doi]

Evaluation of partial path queries on xml dataStefanos Souldatos, Xiaoying Wu, Dimitri Theodoratos, Theodore Dalamagas, Timos K. Sellis. CIKM 2007: 21-30 [doi]

Application of the Peer-to-Peer Paradigm in Digital LibrariesStratis Viglas, Theodore Dalamagas, Vassilis Christophides, Timos K. Sellis, Aggeliki Dimitriou. delos 2007: 318-327 [doi]

2006

NaviMoz: Mining Navigational Patterns in Portal CatalogsEleni G. Christodoulou, Theodore Dalamagas, Timos K. Sellis. edbtw 2006: 801-813 [doi]

A methodology for clustering XML documents by structureTheodore Dalamagas, Tao Cheng, Klaas-Jan Winkel, Timos K. Sellis. is, 31(3):187-228, 2006. [doi]

Data Exchange Issues in Peer-to-Peer Database SystemsVerena Kantere, Timos K. Sellis. ICEIS 2008: 29-37 [doi]

Reusing Classical Query Rewriting in P2P DatabasesVerena Kantere, Timos K. Sellis. dbisp2p 2007: 285-297 [doi]

ADBIS 2006, Advances in Databases and Information Systems, Communications of the Tenth East-European Conference on Advances in Databases and Information Systems, Thessaloniki, Hellas, September 3-7, 2006Yannis Manolopoulos, Jaroslav Pokorný, Timos K. Sellis, editors, Volume 215 of CEUR Workshop Proceedings, CEUR-WS.org, 2006.

Advances in Databases and Information Systems, 10th East European Conference, ADBIS 2006, Thessaloniki, Greece, September 3-7, 2006, ProceedingsYannis Manolopoulos, Jaroslav Pokorný, Timos K. Sellis, editors, Volume 4152 of Lecture Notes in Computer Science, Springer, 2006.

A study on workload-aware wavelet synopses for point and range-sum queriesMichael Mathioudakis, Dimitris Sacharidis, Timos K. Sellis. dolap 2006: 27-34 [doi]

Window Specification over Data StreamsKostas Patroumpas, Timos K. Sellis. edbtw 2006: 445-464 [doi]

Sampling Trajectory Streams with Spatiotemporal CriteriaMichalis Potamias, Kostas Patroumpas, Timos K. Sellis. ssdbm 2006: 275-284 [doi]

Amnesic online synopses for moving objectsMichalis Potamias, Kostas Patroumpas, Timos K. Sellis. CIKM 2006: 784-785 [doi]

Formal specification and optimization of ETL scenariosTimos K. Sellis. dolap 2006: 1-2 [doi]

Data Management in P2P Systems: Challenges and Research IssuesTimos K. Sellis. ICEIS 2006: 21-22

Data management research at the Knowledge and Database Systems Lab: (NTU Athens)Timos K. Sellis, Yannis Vassiliou. SIGMOD, 35(2):62-67, 2006. [doi]

Captain Nemo: A Metasearch Engine with Personalized Hierarchical Search SpaceStefanos Souldatos, Theodore Dalamagas, Timos K. Sellis. informaticaSI, 30(2):173-181, 2006. [doi]

A combination of trie-trees and inverted files for the indexing of set-valued attributesManolis Terrovitis, Spyros Passas, Panos Vassiliadis, Timos K. Sellis. CIKM 2006: 728-737 [doi]

Containment of Partially Specified Tree-Pattern QueriesDimitri Theodoratos, Theodore Dalamagas, Pawel Placek, Stefanos Souldatos, Timos K. Sellis. ssdbm 2006: 3-12 [doi]

Heuristic containment check of partial tree-pattern queries in the presence of index graphsDimitri Theodoratos, Stefanos Souldatos, Theodore Dalamagas, Pawel Placek, Timos K. Sellis. CIKM 2006: 445-454 [doi]

2005

RDFSculpt: Managing RDF Schemas Under Set-Like SemanticsZoi Kaoudi, Theodore Dalamagas, Timos K. Sellis. esws 2005: 123-137 [doi]

State-Space Optimization of ETL WorkflowsAlkis Simitsis, Panos Vassiliadis, Timos K. Sellis. tkde, 17(10):1404-1419, 2005. [doi]

Extraction-Transformation-Loading ProcessesAlkis Simitsis, Panos Vassiliadis, Timos K. Sellis. In Laura C. Rivero, Jorge Horacio Doorn, Viviana E. Ferraggine, editors, Encyclopedia of Database Technologies and Applications. pages 240-245, Idea Group, 2005.

Optimizing ETL Processes in Data WarehousesAlkis Simitsis, Panos Vassiliadis, Timos K. Sellis. icde 2005: 564-575 [doi]

Computing and Managing Cardinal Direction RelationsSpiros Skiadopoulos, Christos Giannoukos, Nikos Sarkas, Panos Vassiliadis, Timos K. Sellis, Manolis Koubarakis. tkde, 17(12):1610-1623, 2005. [doi]

2004

PatManQL: A Language to Manipulate Patterns and Data in Hierarchical CatalogsPanagiotis Bouros, Theodore Dalamagas, Timos K. Sellis, Manolis Terrovitis. parma 2004: [doi]

Clustering XML Documents Using Structural SummariesTheodore Dalamagas, Tao Cheng, Klaas-Jan Winkel, Timos K. Sellis. edbtw 2004: 547-556 [doi]

Clustering XML Documents by StructureTheodore Dalamagas, Tao Cheng, Klaas-Jan Winkel, Timos K. Sellis. setn 2004: 112-121 [doi]

CUBE File: A File Structure for Hierarchically Clustered OLAP CubesNikos Karayannidis, Timos K. Sellis, Yannis Kouvaras. edbt 2004: 621-638 [doi]

Managing Trajectories of Moving Objects as Data StreamsKostas Patroumpas, Timos K. Sellis. stdbm 2004: 41-48 [doi]

Computing and Handling Cardinal Direction InformationSpiros Skiadopoulos, Christos Giannoukos, Panos Vassiliadis, Timos K. Sellis, Manolis Koubarakis. edbt 2004: 329-347 [doi]

Implementing a Query Language for Context-Dependent Semistructured DataYannis Stavrakas, Kostis Pristouris, Antonis Efandis, Timos K. Sellis. adbis 2004: 173-188 [doi]

2003

SISYPHUS: The implementation of a chunk-based storage manager for OLAP data cubesNikos Karayannidis, Timos K. Sellis. DKE, 45(2):155-180, 2003.

IntroductionManolis Koubarakis, Timos K. Sellis. chorochronos 2003: 1-8 [doi]

Spatio-temporal Databases in the Years AheadManolis Koubarakis, Yannis Theodoridis, Timos K. Sellis. chorochronos 2003: 345-347 [doi]

Spatio-Temporal Databases: The CHOROCHRONOS ApproachManolis Koubarakis, Timos K. Sellis, Andrew U. Frank, Stéphane Grumbach, Ralf Hartmut Güting, Christian S. Jensen, Nikos A. Lorentzos, Yannis Manolopoulos, Enrico Nardelli, Barbara Pernici, Hans-Jörg Schek, Michel Scholl, Babis Theodoulidis, Nectaria Tryfona, editors, Volume 2520 of Lecture Notes in Computer Science, Springer, 2003.

Combining Hierarchy Encoding and Pre-Grouping: Intelligent Grouping in Star Join ProcessingRoland Pieringer, Klaus Elhardt, Frank Ramsak, Volker Markl, Robert Fenk, Rudolf Bayer, Nikos Karayannidis, Aris Tsois, Timos K. Sellis. icde 2003: 329-340 [doi]

The Generalized Pre-Grouping Transformation: Aggregate-Query Optimization in the Presence of DependenciesAris Tsois, Timos K. Sellis. VLDB 2003: 644-655 [doi]

2002

Processing Star Queries on Hierarchically-Clustered Fact TablesNikos Karayannidis, Aris Tsois, Timos K. Sellis, Roland Pieringer, Volker Markl, Frank Ramsak, Robert Fenk, Klaus Elhardt, Rudolf Bayer. VLDB 2002: 730-741 [doi]

Cost-based optimization of aggregation star queries on hierarchically clustered data warehousesAris Tsois, Nikos Karayannidis, Timos K. Sellis, Dimitri Theodoratos. dmdw 2002: 62-71 [doi]

2001

Design of the ERATOSTHENES OLAP ServerNikos Karayannidis, Aris Tsois, Panos Vassiliadis, Timos K. Sellis. pci 2003: 32-49 [doi]

STEDEL: A Language For Interactive Spatiotemporal CompositionsIosif Lazaridis, Michalis Vazirgiannis, Timos K. Sellis. icmcs 2001: [doi]

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