Publications

You can learn about stRDF and stSPARQL by reading our tutorial and/or the publications given on this page.

The current versions of stRDF and stSPARQL, which are based on OGC standards and the system Strabon are presented in the following documents:

  • K. Bereta, P. Smeros and M. Koubarakis. Representing and Querying the Valid Time of Triples for Linked Geospatial Data. In the 10th Extended Semantic Web Conference (ESWC 2013). Montpellier, France. May 26-30, 2013. [pdf]

  • K. Kyzirakos, M. Karpathiotakis and M. Koubarakis. Strabon: A Semantic Geospatial DBMS. In the 11th International Semantic Web Conference (ISWC 2012), Boston, USA, 11-15 November 2012. [pdf]

  • M. Koubarakis, M. Karpathiotakis, K. Kyzirakos, C. Nikolaou, and M. Sioutis, Data Models and Query Languages for Linked Geospatial Data, Invited tutorial at the 8th Reasoning Web Summer School 2012 (RW 2012), Austria, Vienna, 03-08 September, 2012. [pdf]


Coming up soon: Strabon will soon support an extension of RDF for incomplete geospatial information. The following publications give a preview of the relevant research problems:


  • Charalampos Nikolaou and Manolis Koubarakis: "Querying incomplete information in RDF with SPARQL". Artificial Intelligence, 2016.

  • Charalampos Nikolaou and Manolis Koubarakis: "Querying Incomplete Geospatial Information in RDF". In the 13th International Symposium on Spatial and Temporal Databases (SSTD 2013), Munich, Germany, August 21-23, 2013. [pdf]

  • Charalampos Nikolaou and Manolis Koubarakis. Incomplete Information in RDF. In the 7th International Conference on Web Reasoning and Rule Systems (RR 2013). Mannheim, Germany. July 27-29, 2013. [pdf]

  • Charalampos Nikolaou and Manolis Koubarakis. Incomplete information in RDF. CoRR, abs/1209.3756, 2012. [pdf]

  • C. Nikolaou and M. Koubarakis, Querying Linked Geospatial Data with Incomplete Information, In the 5th International Terra Cognita Workshop 2012 - Foundations, Technologies and Applications of the Geospatial Web. In conjunction with the 11th International Semantic Web Conference, Boston, USA, 11-15 November 2012. [pdf]

  • M. Koubarakis, K. Kyzirakos, M. Karpathiotakis, C. Nikolaou, M. Sioutis, S. Vassos, D. Michail, T. Herekakis, C. Kontoes and I. Papoutsis. Challenges for Qualitative Spatial Reasoning in Linked Geospatial Data. In Proceedings of IJCAI 2011 Workshop on Benchmarks and Applications of Spatial Reasoning, Barcelona, Spain. [pdf]


Applications of stRDF, stSPARQL, and the system Strabon are described here:

2016

  • Manolis Koubarakis, Kostis Kyzirakos, Charalampos Nikolaou, George Garbis, Konstantina Bereta, Roi Dogani, Stella Giannakopoulou, Panayiotis Smeros, Dimitrianos Savva, George Stamoulis, Giannis Vlachopoulos, Stefan Manegold, Charalampos Kontoes, Themistocles Herekakis, Ioannis Papoutsis, and Dimitrios Michail Managing Big, Linked, and Open Earth-Observation Data Using the TELEIOS/LEO software stack In IEEE Geoscience and Remote Sensing Magazine, Vol. 4, Issue 3, p. 23-37, September 2016 [pdf]

  • Sergio Albani, Michele Lazzarini, Manolis Koubarakis, Efi Karra Taniskidou, George Papadakis, Vangelis Karkaletsis, George Giannakopoulos. Integrating Remote and Social Sensing Data for a Scenario on Secure Societies in a Big Data Platform. Living Planet Symposium 2016, Prague, Czech Republic, May 2016

  • Panayiotis Smeros and Manolis Koubarakis Discovering Spatial and Temporal Links among RDF Data. Linked Data on the Web Workshop (LDOW2016), 12 April 2016 [pdf]

  • Sergio Albani, Michele Lazzarini, Manolis Koubarakis, Efi Karra Taniskidou, George Papadakis, Vangelis Karkaletsis, George Giannakopoulos. A Pilot for Big Data Exploitation in the Space and Security Domain. Conference on Big Data from Space (BiDS), Tenerife, Spain, March 2016 [pdf]

2015

  • Daniela Espinoza-Molina, Member, IEEE, Charalampos Nikolaou, Corneliu Octavian Dumitru, Konstantina Bereta, Manolis Koubarakis, Gottfried Schwarz, and Mihai Datcu, Fellow, IEEE. Very-High-Resolution SAR Images and Linked Open Data Analytics Based on Ontologies. Selected Topics in Applied Earth Observations and Remote Sensing, Journal of IEEE, Vol. 8, Issue 4, pages 1696-1708 [pdf]

2014

  • Manolis Koubarakis, Panayiotis Smeros, Charalampos Nikolaou, George Garbis, Konstantina Bereta, Stella Giannakopoulou, Kallirroi Dogani, Maria Karpathiotaki, Ioannis Vlachopoulos, Dimitrianos Savva, George Stamoulis, Kostis Kyzirakos, Stefan Manegold, Bernard Valentin, Heike Bach, Fabian Niggemann, Philipp Klug, Wolfgang Angermair and Stefan Burgstaller. Linked Open Data in the Earth Observation Domain: the Vision of Project LEO. In the Proceedings of the 2014 Conference on Big Data from Space (BiDS '14). ESA-ESRIN, Frascati, Italy, November 12-14, 2014. [pdf]

  • Jon Blower, Debbie Clifford, Pedro Goncalves, Manolis Koubarakis. The MELODIES Project: Integrating diverse data using linked data and cloud computing. In the Proceedings of the 2014 Conference on Big Data from Space (BiDS '14). ESA-ESRIN, Frascati, Italy, November 12-14, 2014. [pdf]

  • Kostis Kyzirakos, Ioannis Vlachopoulos, Dimitrianos Savva, Stefan Manegold, Manolis Koubarakis. GeoTriples: a Tool for Publishing Geospatial Data as RDF Graphs Using R2RML Mappings. In the Proceedings of the ISWC 2014 Posters & Demonstrations Track, pp 393-396. Riva del Garda, Trentino, Italy, October 21th, 2014. [pdf]

  • Kostis Kyzirakos, Ioannis Vlachopoulos, Dimitrianos Savva, Stefan Manegold, Manolis Koubarakis. GeoTriples: a Tool for Publishing Geospatial Data as RDF Graphs Using R2RML Mappings. Terra Cognita 2014, 6th International Workshop on the Foundations, Technologies and Applications of the Geospatial Web, in conjuction with ISWC 2014. Riva del Garda, Trentino, Italy, October 19-23, 2014. [pdf]

  • Manolis Koubarakis, Charalampos Nikolaou, George Garbis, Konstantina Bereta, Panayiotis Smeros, Stella Gianakopoulou, Kallirroi Dogani, Maria Karpathiotaki, Ioannis Vlachopoulos, Dimitrianos Savva, Kostis Kyzirakos, Stefan Manegold, Bernard Valentin, Nicolas James, Heike Bach, Fabian Niggemann, Philipp Klug, Wolfgang Angermair, Stefan Burgstaller. Linked Open Data in the Earth Observation Domain: the Vision of Project LEO. In the Web Reasoning and Rule Systems conference (RR 2014). Athens, Greece, 15-17 September 2014. [pdf]

  • M. Koubarakis. Linked Open Earth Observation Data: The LEO Project. Informal Proceedings of the Image Information Mining Conference: The Sentinels Era (ESA-EUSC-JRC 2014). Bucharest, Romania, 5-7 March, 2014. [pdf]

  • M. Koubarakis, K. Kyzirakos, C. Nikolaou, G. Garbis, K. Bereta, P. Smeros, S. Gianakopoulou, K. Dogani, M. Karpathiotaki and I. Vlachopoulos. Linked Earth Observation Data: The Projects TELEIOS and LEO. In the Linking Geospatial Data Conference (LGD 2014). Campus London, Shoreditch. 5-6 March 2014. [pdf]

  • K. Kyzirakos, M. Karpathiotakis, G. Garbis, C. Nikolaou, K. Bereta, I. Papoutsis, T. Herekakis, D. Michail, M. Koubarakis and C. Kontoes. Wildfire monitoring using satellite images, ontologies and linked geospatial data. In Journal of Web Semantics, Vol. 24, No 05. 22 January 2014. Journal. [pdf]

  • K. Kyzirakos, S. Manegold, C. Nikolaou and M. Koubarakis. Building Virtual Earth Observatories Using Scientific Database and Semantic Web Technologies. In the European Research Consortium for Informatics and Mathematics News. January 2014. [link]

  • 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, Lecture Notes in Computer Science, pp. 444-449
2013

  • Konstantina Bereta, Charalampos Nikolaou, Manos Karpathiotakis, Kostis Kyzirakos, and Manolis Koubarakis. SexTant: Visualizing Time-Evolving Linked Geospatial Data. In the 12th International Semantic Web Conference (ISWC 2013). Sydney, Australia. October 21-25, 2013. [pdf]

  • Kostis Kyzirakos, Manos Karpathiotakis, Konstantina Bereta, George Garbis, Charalampos Nikolaou, Panayiotis Smeros, Stella Giannakopoulou, Kallirroi Dogani, and Manolis Koubarakis: "The Spatiotemporal RDF Store Strabon". In the 13th International Symposium on Spatial and Temporal Databases (SSTD 2013), Munich, Germany, August 21-23, 2013. [pdf]

  • G. Garbis, K. Kyzirakos and M. Koubarakis. Geographica: A Benchmark for Geospatial RDF Stores. In the 12th International Semantic Web Conference (ISWC 2013). Sydney, Australia. October 21-25, 2013. [pdf]

  • C. Nikolaou, K. Dogani, K. Kyzirakos and M. Koubarakis. Sextant: Browsing and Mapping the Ocean of Linked Geospatial Data. In the 10th Extended Semantic Web Conference (ESWC 2013). Montpellier, France. May 26-30, 2013. Demo paper. [pdf]

  • M. Koubarakis, C. Kontoes, S. Manegold, M. Karpathiotakis, K. Kyzirakos, K. Bereta, G. Garbis, C. Nikolaou, D. Michail, I. Papoutsis, T. Herekakis, M. Ivanova, Y. Zhang, H. Pirk, M. Kersten, K. Dogani, S. Giannakopoulou and P. Smeros. Real-Time Wildfire Monitoring Using Scientific Database and Linked Data Technologies. In the 16th International Conference on Extending Database Technology (EDBT 2013). Genoa, Italy. March 18-22, 2013. [pdf]

2012

  • K. Kyzirakos, M. Karpathiotakis, G. Garbis, C. Nikolaou, K. Bereta, M. Sioutis, I. Papoutsis, T. Herekakis, D. Michail, M. Koubarakis, and C. Kontoes, Real Time Fire Monitoring Using Semantic Web and Linked Data Technologies, In the 11th International Semantic Web Conference (ISWC 2012), Boston, USA, 11-15 November 2012. Demo paper. [pdf]

  • M. Sioutis and M. Koubarakis. Consistency of Chordal RCC-8 Networks. In the 24th IEEE International Conference on Tools with Artificial Intelligence. November 7-9, 2012. Athens, Greece. [pdf]

  • M. Koubarakis, M. Sioutis, K. Kyzirakos, M. Karpathiotakis, C. Nikolaou, S.Vassos, G. Garbis, K. Bereta, M. Datcu, G. Schwarz, O.C. Dumitru, D.E. Molina and K. Molch, Building Virtual Earth Observatories Using Ontologies, Linked Geospatial Data and Knowledge Discovery Algorithms, In the Image Information Mining Conference: Knowledge Discovery from Earth Observation Data (ESA-EUSC-JRC 2012), Oberpfaffenhofen, Germany, 24-26 October 2012. [pdf]

  • M. Koubarakis, K. Kyzirakos, M. Karpathiotakis, C. Nikolaou, S. Vassos, G. Garbis, M. Sioutis, K. Bereta, C. Kontoes, I. Papoutsis, T. Herekakis, D. Michail, S. Manegold, M. Kersten, M. Ivanova, H.Pirk, Y. Zhang, M. Datcu, G. Schwarz, O. C. Dumitru, D. E. Molina, K. Molch, U. D. Giammatteo, M. Sagona, S. Perelli, T. Reitz, E. Klien and R. Gregor, Building Remote Sensing Applications Using Scientific Database and Semantic Web Technologies, In the Image Information Mining Conference: Knowledge Discovery from Earth Observation Data (ESA-EUSC-JRC 2012), Oberpfaffenhofen, Germany, 24-26 October 2012. [pdf]

  • M. Koubarakis, M. Sioutis, K. Kyzirakos, M. Karpathiotakis, C. Nikolaou, S. Vassos, G. Garbis, K. Bereta, O. C. Dumitru, D. E. Molina, K. Molch, G. Schwarz, and M. Datcu, Building Virtual Earth Observatories using Ontologies, Linked Geospatial Data and Knowledge Discovery Algorithms, In the 11th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE 2012), Roma, Italy, 11-12 September 2012. [pdf]

  • M. Koubarakis, M. Karpathiotakis, K. Kyzirakos, C. Nikolaou, S. Vassos, G. Garbis, M. Sioutis, K. Bereta, S. Manegold, M. Kersten, M. Ivanova, H. Pirk, Y. Zhang, C. Kontoes, I. Papoutsis, T. Herekakis, D. Mihail, M. Datcu, G. Schwarz, O. Dumitru, D. Molina, K. Molch, U. Giammatteo, M. Sagona, S. Perelli, E. Klien, T. Reitz, and R. Gregor, Building Virtual Earth Observatories using Ontologies and Linked Geospatial Data, In the 6th International Conference on Web Reasoning and Rule Systems (RR 2012), Vienna, Austria, 10-12 September 2012. [pdf]

  • M. Koubarakis, K. Kyzirakos, M. Karpathiotakis, C. Nikolaou, S. Vassos, G. Garbis, M. Sioutis, K. Bereta, D. Michail, C. Kontoes, I. Papoutsis, T. Herekakis, S. Manegold, M. Kersten, M. Ivanova, H. Pirk, Y. Zhang, M. Datcu, G. Schwarz, O. C. Dumitru, D. E. Molina, K. Molch, U. D. Giammatteo, M. Sagona, S. Perelli, T. Reitz, E. Klien, and R. Gregor, TELEIOS: A Database-Powered Virtual Earth Observatory, In 38th International Conference on Very Large Databases (VLDB 2012), Istanbul, Turkey, 27-31 August 2012. Demo. [pdf]

  • C. Kontoes, I. Keramitsoglou, I. Papoutsis, D. Michail, T. Herekakis, P. Xofis, M. Koubarakis, K. Kyzirakos, M. Karpathiotakis, C. Nikolaou, M. Sioutis, G Garbis, S. Vassos, S. Manegold, M. Kersten, H. Pirk, M. Ivanova, Operational Wildfire Monitoring and Disaster Management Support Using State-of-the-art EO and Information Technologies, In 2nd International Workshop on Earth Observation and Remote Sensing Applications (EORSA 2012), Shangai, China, 8-11 June 2012. [pdf]

  • C. Kontoes, I. Papoutsis, D. Michail, T. Herekakis, M. Koubarakis, K. Kyzirakos, M.Karpathiotakis, C. Nikolaou, M. Sioutis, G. Garbis, S. Vassos, I. Keramitsoglou, M. Kersten, S. Manegold, and H. Pirk, Wildfire monitoring via the integration of remote sensing with innovative information technologies, In EGU General Assembly 2012, Vienna, Austria, 22-27 April 2012. Short paper. [pdf]

2011

  • A.J.G. Gray, J. Sadler, O. Kit, K. Kyzirakos, M. Karpathiotakis, J.-P. Calbimonte, K. Page, R. García-Castro, A. Frazer, I. Galpin, A.A.A. Fernandes, N.W. Paton, O. Corcho, M. Koubarakis, D.D. Roure, K. Martinez, A. Gómez-Pérez. A Semantic Sensor Web for Environmental Decision Support Applications. Sensors. 11, 8855-8887. [pdf]

  • Alasdair J. G. Gray, Raúl García-Castro, Kostis Kyzirakos, Manos Karpathiotakis, Jean-Paul Calbimonte, Kevin Page, Jason Sadler, Alex Frazer, Ixent Galpin, Alvaro A. A. Fernandes, Norman W. Paton, Oscar Corcho, Manolis Koubarakis, David De Roure, Kirk Martinez and Asunción Gómez-Pérez. A Semantically Enabled Service Architecture for Mashups over Streaming and Stored Data. In 8th Extended Semantic Web Conference (ESWC 2011). Heraklion, Crete, May 20 - June 2, 2011. [pdf]

2010

  • Kostis Kyzirakos, Manos Karpathiotakis and Manolis Koubarakis. Developing Registries for the Semantic Sensor Web using stRDF and stSPARQL (short paper). In Proceedings of 3rd International workshop on Semantic Sensor Networks 2010, in conjunction with ISWC 2010, November 2010, Shanghai, China. [pdf]

  • Manolis Koubarakis and Kostis Kyzirakos. Modeling and Querying Metadata in the Semantic Sensor Web: the Model stRDF and the Query Language stSPARQL. In 7th Extended Semantic Web Conference (ESWC 2010). Heraklion, Crete, 30 May - 03 June, 2010. [pdf]