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Charalampos Nikolaou

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2010 – 2019

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2019
[j7]
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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: 91-132 (2019)
[j6]
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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: 30-55 (2019)
[c22]
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Gianluca Cima, Charalampos Nikolaou, Egor V. Kostylev, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks:
Bagging the DL-Lite Family Further. Description Logics 2019
[c21]
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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: 1829-1835
[c20]
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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: 128-144
[c19]
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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: 840-849
[r1]
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Manolis Koubarakis, Konstantina Bereta, Charalampos Nikolaou, George Stamoulis:
Linked Geospatial Data. Encyclopedia of Big Data Technologies 2019
2017
[c18]
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Ilias Chalkidis, Charalampos Nikolaou, Panagiotis Soursos, Manolis Koubarakis:
Modeling and Querying Greek Legislation Using Semantic Web Technologies. ESWC (1) 2017: 591-606
[c17]
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Charalampos Nikolaou, Egor V. Kostylev, George Konstantinidis, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks:
The Bag Semantics of Ontology-Based Data Access. IJCAI 2017: 1224-1230
[i4]
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Charalampos Nikolaou, Egor V. Kostylev, George Konstantinidis, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks:
The Bag Semantics of Ontology-Based Data Access. CoRR abs/1705.07105 (2017)
2016
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Charalampos Nikolaou, Manolis Koubarakis:
Querying incomplete information in RDF with SPARQL. Artif. Intell. 237: 138-171 (2016)
[c16]
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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: 344-362
[i3]
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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 abs/1607.05351 (2016)
2015
[b1]
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Charalampos Nikolaou:
Incomplete information in RDF databases with an emphasis on the geospatial domain. National and Kapodistrian University of Athens, Greece, 2015
[j4]
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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): 1696-1708 (2015)
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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: 35-52 (2015)
2014
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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: 18-26 (2014)
[c15]
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Stella Giannakopoulou, Charalampos Nikolaou, Manolis Koubarakis:
A Reasoner for the RCC-5 and RCC-8 Calculi Extended with Constants. AAAI 2014: 2659-2665
[c14]
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Charalampos Nikolaou, Manolis Koubarakis:
Fast Consistency Checking of Very Large Real-World RCC-8 Constraint Networks Using Graph Partitioning. AAAI 2014: 2724-2730
[c13]
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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: 444-449
[i2]
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Kostis Kyzirakos, Stefan Manegold, Charalampos Nikolaou, Manolis Koubarakis:
Building Virtual Earth Observatories Using Scientific Database and Semantic Web Technologies. ERCIM News 2014(96) (2014)
2013
[c12]
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Charalampos Nikolaou, Kallirroi Dogani, Kostis Kyzirakos, Manolis Koubarakis:
Sextant: Browsing and Mapping the Ocean of Linked Geospatial Data. ESWC (Satellite Events) 2013: 209-213
[c11]
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Charalampos Nikolaou, Manolis Koubarakis:
Incomplete Information in RDF. RR 2013: 138-152
[c10]
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Konstantina Bereta, Charalampos Nikolaou, Manos Karpathiotakis, Kostis Kyzirakos, Manolis Koubarakis:
SexTant: Visualizing Time-Evolving Linked Geospatial Data. ISWC (Posters & Demos) 2013: 177-180
[c9]
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Charalampos Nikolaou, Manolis Koubarakis:
Querying Incomplete Geospatial Information in RDF. SSTD 2013: 447-450
[c8]
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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: 496-500
2012
[j1]
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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): 2010-2013 (2012)
[c7]
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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: 932-949
[c6]
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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: 229-233
[c5]
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Manolis Koubarakis, Manos Karpathiotakis, Kostis Kyzirakos, Charalampos Nikolaou, Michael Sioutis:
Data Models and Query Languages for Linked Geospatial Data. Reasoning Web 2012: 290-328
[c4]
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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
[c3]
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Charalampos Nikolaou, Manolis Koubarakis:
Querying Linked Geospatial Data with Incomplete Information. Terra Cognita@ISWC 2012: 51-61
[i1]
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Charalampos Nikolaou, Manolis Koubarakis:
Incomplete Information in RDF. CoRR abs/1209.3756 (2012)
2011
[c2]
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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: 465-468
2010
[c1]
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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: 1-4

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