Charalampos Nikolaou

Publication Activity (10 Years)

Years Active: 2010-2019
Publications (10 Years): 14

Top Topics

Incomplete Information

Integrity Constraints

Geospatial Data

Top Venues

Publications

Evgeny Kharlamov, Yannis Kotidis, Theofilos Mailis, Christian Neuenstadt, Charalampos Nikolaou, Özgür L. Özçep, Christoforos Svingos, Dmitriy Zheleznyakov, Yannis E. Ioannidis, Steffen Lamparter, Ralf Möller, Arild Waaler
An ontology-mediated analytics-aware approach to support monitoring and diagnostics of static and streaming data. J. Web Semant. 56 (2019)
Gianluca Cima, Charalampos Nikolaou, Egor V. Kostylev, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks
Bagging the DL-Lite Family Further. Description Logics (2019)
Charalampos Nikolaou, Egor V. Kostylev, George Konstantinidis, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks
Foundations of ontology-based data access under bag semantics. Artif. Intell. 274 (2019)
Gianluca Cima, Charalampos Nikolaou, Egor V. Kostylev, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks
Bag Semantics of DL-Lite with Functionality Axioms. ISWC (1) (2019)
Themis Beris, Iosif Angelidis, Ilias Chalkidis, Charalampos Nikolaou, Christos Papaloukas, Panagiotis Soursos, Manolis Koubarakis
Towards a Decentralized, Trusted, Intelligent and Linked Public Sector: A Report from the Greek Trenches. WWW (Companion Volume) (2019)
Charalampos Nikolaou, Bernardo Cuenca Grau, Egor V. Kostylev, Mark Kaminski, Ian Horrocks
Satisfaction and Implication of Integrity Constraints in Ontology-based Data Access. IJCAI (2019)
Charalampos Nikolaou, Egor V. Kostylev, George Konstantinidis, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks
The Bag Semantics of Ontology-Based Data Access. CoRR (2017)
Ilias Chalkidis, Charalampos Nikolaou, Panagiotis Soursos, Manolis Koubarakis
Modeling and Querying Greek Legislation Using Semantic Web Technologies. ESWC (1) (2017)
Charalampos Nikolaou, Egor V. Kostylev, George Konstantinidis, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks
The Bag Semantics of Ontology-Based Data Access. IJCAI (2017)
Evgeny Kharlamov, Yannis Kotidis, Theofilos Mailis, Christian Neuenstadt, Charalampos Nikolaou, Özgür L. Özçep, Christoforos Svingos, Dmitriy Zheleznyakov, Steffen Lamparter, Ian Horrocks, Yannis E. Ioannidis, Ralf Möller
Towards Analytics Aware Ontology Based Access to Static and Streaming Data (Extended Version). CoRR (2016)
Charalampos Nikolaou, Manolis Koubarakis
Querying incomplete information in RDF with SPARQL. Artif. Intell. 237 (2016)
Evgeny Kharlamov, Yannis Kotidis, Theofilos Mailis, Christian Neuenstadt, Charalampos Nikolaou, Özgür L. Özçep, Christoforos Svingos, Dmitriy Zheleznyakov, Sebastian Brandt, Ian Horrocks, Yannis E. Ioannidis, Steffen Lamparter, Ralf Möller
Towards Analytics Aware Ontology Based Access to Static and Streaming Data. ISWC (2) (2016)
Daniela Espinoza-Molina, Charalampos Nikolaou, Corneliu Octavian Dumitru, Konstantina Bereta, Manolis Koubarakis, Gottfried Schwarz, Mihai Datcu
Very-High-Resolution SAR Images and Linked Open Data Analytics Based on Ontologies. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 8 (4) (2015)
Charalampos Nikolaou, Kallirroi Dogani, Konstantina Bereta, George Garbis, Manos Karpathiotakis, Kostis Kyzirakos, Manolis Koubarakis
Sextant: Visualizing time-evolving linked geospatial data. J. Web Semant. 35 (2015)
Kostis Kyzirakos, Stefan Manegold, Charalampos Nikolaou, Manolis Koubarakis
Building Virtual Earth Observatories Using Scientific Database and Semantic Web Technologies. ERCIM News 2014 (96) (2014)
Kostis Kyzirakos, Manos Karpathiotakis, George Garbis, Charalampos Nikolaou, Konstantina Bereta, Ioannis Papoutsis, Themos Herekakis, Dimitrios Michail, Manolis Koubarakis, Charalambos Kontoes
Wildfire monitoring using satellite images, ontologies and linked geospatial data. J. Web Semant. 24 (2014)
Charalampos Nikolaou, Kostis Kyzirakos, Konstantina Bereta, Kallirroi Dogani, Stella Giannakopoulou, Panayiotis Smeros, George Garbis, Manolis Koubarakis, Daniela Espinoza-Molina, Corneliu Octavian Dumitru, Gottfried Schwarz, Mihai Datcu
Big, Linked and Open Data: Applications in the German Aerospace Center. ESWC (Satellite Events) (2014)
Charalampos Nikolaou, Manolis Koubarakis
Fast Consistency Checking of Very Large Real-World RCC-8 Constraint Networks Using Graph Partitioning. AAAI (2014)
Stella Giannakopoulou, Charalampos Nikolaou, Manolis Koubarakis
A Reasoner for the RCC-5 and RCC-8 Calculi Extended with Constants. AAAI (2014)
Charalampos Nikolaou, Kallirroi Dogani, Kostis Kyzirakos, Manolis Koubarakis
Sextant: Browsing and Mapping the Ocean of Linked Geospatial Data. ESWC (Satellite Events) (2013)
Konstantina Bereta, Charalampos Nikolaou, Manos Karpathiotakis, Kostis Kyzirakos, Manolis Koubarakis
SexTant: Visualizing Time-Evolving Linked Geospatial Data. ISWC (Posters & Demos) (2013)
Kostis Kyzirakos, Manos Karpathiotakis, Konstantina Bereta, George Garbis, Charalampos Nikolaou, Panayiotis Smeros, Stella Giannakopoulou, Kallirroi Dogani, Manolis Koubarakis
The Spatiotemporal RDF Store Strabon. SSTD (2013)
Charalampos Nikolaou, Manolis Koubarakis
Incomplete Information in RDF. RR (2013)
Charalampos Nikolaou, Manolis Koubarakis
Querying Incomplete Geospatial Information in RDF. SSTD (2013)
Manolis Koubarakis, Manos Karpathiotakis, Kostis Kyzirakos, Charalampos Nikolaou, Stavros Vassos, George Garbis, Michael Sioutis, Konstantina Bereta, Stefan Manegold, Martin L. Kersten, Milena Ivanova, Holger Pirk, Ying Zhang, Charalambos Kontoes, Ioannis Papoutsis, Themistoklis Herekakis, Dimitrios Michail, Mihai Datcu, Gottfried Schwarz, Corneliu Octavian Dumitru, Daniela Espinoza-Molina, Katrin Molch, Ugo Di Giammatteo, Manuela Sagona, Sergio Perelli, Eva Klien, Thorsten Reitz, Robert Gregor
Building Virtual Earth Observatories Using Ontologies and Linked Geospatial Data. RR (2012)
Charalampos Nikolaou, Manolis Koubarakis
Incomplete Information in RDF CoRR (2012)
Kostis Kyzirakos, Manos Karpathiotakis, George Garbis, Charalampos Nikolaou, Konstantina Bereta, Michael Sioutis, Ioannis Papoutsis, Themistoklis Herekakis, Dimitrios Michail, Manolis Koubarakis, Charalambos Kontoes
Real Time Fire Monitoring Using Semantic Web and Linked Data Technologies. ISWC (Posters & Demos) (2012)
Manolis Koubarakis, Manos Karpathiotakis, Kostis Kyzirakos, Charalampos Nikolaou, Michael Sioutis
Data Models and Query Languages for Linked Geospatial Data. Reasoning Web (2012)
Manolis Koubarakis, Michael Sioutis, George Garbis, Manos Karpathiotakis, Kostis Kyzirakos, Charalampos Nikolaou, Konstantina Bereta, Stavros Vassos, Corneliu Octavian Dumitru, Daniela Espinoza-Molina, Katrin Molch, Gottfried Schwarz, Mihai Datcu
Building Virtual Earth Observatories Using Ontologies, Linked Geospatial Data and Knowledge Discovery Algorithms. OTM Conferences (2) (2012)
Manolis Koubarakis, Kostis Kyzirakos, Manos Karpathiotakis, Charalampos Nikolaou, Stavros Vassos, George Garbis, Michael Sioutis, Konstantina Bereta, Dimitrios Michail, Charalambos Kontoes, Ioannis Papoutsis, Themos Herekakis, Stefan Manegold, Martin L. Kersten, Milena Ivanova, Holger Pirk, Ying Zhang, Mihai Datcu, Gottfried Schwarz, Corneliu Octavian Dumitru, Daniela Espinoza-Molina, Katrin Molch, Ugo Di Giammatteo, Manuela Sagona, Sergio Perelli, Thorsten Reitz, Eva Klien, Robert Gregor
TELEIOS: A Database-Powered Virtual Earth Observatory. Proc. VLDB Endow. 5 (12) (2012)
Charalampos Nikolaou, Manolis Koubarakis
Querying Linked Geospatial Data with Incomplete Information. Terra Cognita@ISWC (2012)
Akrivi Katifori, Charalampos Nikolaou, Manolis Platakis, Yannis E. Ioannidis, A. Tympas, Manolis Koubarakis, Nikos Sarris, V. Tountopoulos, Efstratios Tzoannos, Siarhei Bykau, Nadzeya Kiyavitskaya, Chrisa Tsinaraki, Yannis Velegrakis
The Papyrus Digital Library: Discovering History in the News. TPDL (2011)
Manolis Platakis, Charalampos Nikolaou, Akrivi Katifori, Manolis Koubarakis, Yannis E. Ioannidis
Browsing news archives from the perspective of history: The Papyrus Browser Historiographical Issues View. WIAMIS (2010)