InteLLigence

Research on Semantic Web

Description

Our work aims at enhancing the capabilities of state-of-the-art information systems and their support for information analysis and reasoning by exploiting the time dimension in the information possessed. Knowledge is being interpreted through Time Determined Ontology (TDO) models encoding concepts and relationships acquired by experts and by data analysis. It is developed based on state-of-the-art natural language processing, data analysis (including signal and image analysis) and semantic web technology (e.g., OWL, OWL reasoners, query languages) thus exploiting leading edge technology in knowledge management.

Related Publications

Thermolia C., Bei K., Petrakis E., Kritsotakis V., Tsiknakis M., Sakkalis V.: Designing A Patient Monitoring System for Bipolar Disorder Using Semantic Web Technologies, 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2015), Milan, Italy, August 25-29, 2015.

Publication Type: Conference Publications [abstract] [file]

Thermolia C., Bei K., Sotiriadis S., Stravoskoufos K., Petrakis E.: Designing A Patient Monitoring System Using Cloud And Semantic Web Technologies, 17th International Conference on Brain and Health Informatics (ICBHI 2015), London, UK, May 25-26 2015 (presentation).

Publication Type: Conference Publications [abstract] [file]

Anagnostopoulos E., Petrakis E., Batsakis S.: CHRONOS: Improving the Performance of Qualitative Temporal Reasoning in OWL, IEEE International Conference on Tools with Artificial Intelligence, Limasol, Cyprus, November 10-12, 2014.

Publication Type: Conference Publications [abstract] [file]

Mainas N., Petrakis E.: CHOROS 2: Improving the Performance of Qualitative Spatial Reasoning in OWL, IEEE International Conference on Tools with Artificial Intelligence, Limasol, Cyprus, November 10-12, 2014.

Publication Type: Conference Publications [abstract] [file]

Thermolia C., Bei K., Petrakis E.: Prediction of the Evolution of Bipolar Depression using Semantic Web Technologies, 5th International Conference on Information, Intelligence, Systems and Applications (IISA 2014), Chania, Crete, Greece, July 7-9 2014.

Publication Type: Conference Publications [abstract] [file]

Thermolia C., Bei K., Petrakis E.: TeleCare of Mental Disorders by Applying Semantic Web Technology, IEEE 13th International Conference on Bioinformatics and Bioengineering, (BIBE 2013), November, 10-13, 2013, Chania, Crete.

Publication Type: Conference Publications [abstract] [file]

Mainas N.: CHOROS 2.0: Improving the Performance of Spatial Reasoning in OWL, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, November 2013.(Technical Report TR-TUC-ISL-05-2013)

Publication Type: Technical Reports [abstract] [file]

Anagnostopoulos E.: CHRONOS: A Reasoning Engine for Qualitative Temporal Information in OWL, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, November 2013.(Technical Report TR-TUC-ISL-04-2013)

Publication Type: Technical Reports [abstract] [file]

Koutsoukos I.: Automated Classification of Pollen Grains from Microscope Images using Computer Vision and Semantic Web Technologies, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, November 2013.(Technical Report TR-TUC-ISL-03-2013)

Publication Type: Technical Reports [abstract] [file]

Anagnostopoulos E., Batsakis S., Petrakis E.: CHRONOS: A Reasoning Engine for Qualitative Temporal Information in OWL, 16th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES'2013), 9-11 September 2013, Kitakyushu, Japan.

Publication Type: Conference Publications [abstract] [file]

Stravoskoufos K.: SOWL QL : Querying Spatio-Temporal Ontologies In OWL 2.0, Master's Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, April2013.(Technical Report TR-TUC-ISL-01-2013)

Publication Type: Technical Reports [abstract] [file]

Preventis A., Makri X., Petrakis E., Batsakis S.: CHRONOS: A Tool for Handling Temporal Ontologies in Protege, 24th International Conference on Tools with Artificial Intelligence (ICTAI 2012), November 7-9, 2012, Athens, Greece.

Publication Type: Conference Publications [abstract] [file]

Christodoulou G., Petrakis E., Batsakis S.: Qualitative Spatial Reasoning using Topological and Directional Information in OWL, 24th International Conference on Tools with Artificial Intelligence (ICTAI 2012), November 7-9, 2012, Athens, Greece.

Publication Type: Conference Publications [abstract] [file]

Thermolia C.: Prediction of the Evolution of Bipolar Disorder using Semantic Web Technologies, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, October 2012. (Technical Report TR-TUC-ISL-04-2012)

Publication Type: Technical Reports [abstract] [file]

Batsakis S., Petrakis E.: Imposing Restrictions Over Temporal Properties in OWL: A Rule-Based Approach, 6th International Symposium on Rules: Research Based and Industry Focused (RuleML 2012), Montpellier, France, August 27-29, 2012.

Publication Type: Conference Publications [abstract] [file]

Christodoulou G.: CHOROS: A Reasoning and Query Engine for Qualitative Spatial Information, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, February 2012. (Technical Report TR-TUC-ISL-03-2012)

Publication Type: Technical Reports [abstract] [file]

Partsas L.: 4D-fluents: A Plugin for crafting ontologies in Protégé, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, February 2012. (Technical Report TR-TUC-ISL-02-2012)

Publication Type: Technical Reports [abstract] [file]

Preventis A.: Chronos: A Tool for Handling Temporal Ontologies in Protégé, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, February 2012. (Technical Report TR-TUC-ISL-01-2012)

Publication Type: Technical Reports [abstract] [file]

Papadakis N., Stravoskoufos K., Baratis E., Petrakis E., Plexousakis D.: PROTON: A Prolog Reasoner for Temporal ONtologies in OWL, Expert Systems with Applications (ESWA), 2011.

Publication Type: Journal Publications [abstract] [file]

Batsakis S.: SOWL: A Framework for Handling Spatio-Temporal Information in OWL, Ph.D. Thesis at the Department of Electronic and Computer Engineering, Technical University of Crete, Greece, December 2011. (Technical Report TR-TUC-ISL-06-2011)

Publication Type: Technical Reports [abstract] [file]

Batsakis S., Stravoskoufos K., Petrakis E.: Temporal Reasoning for Supporting Temporal Queries in OWL 2.0, 15th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems, 12-14 September 2011, Kaiserslautern, Germany.

Publication Type: Conference Publications [abstract] [file]

Petrakis E., Chliaoutakis A.: Automatic Document Categorization by User Profile in Medline, 15th International Symposium on Health Information Management Research (ISHIMR'2011), 8-9 September, 2011, in Zurich, Switzerland.

Publication Type: Conference Publications [abstract] [file]

Hatzigeorgakidis G.: Management of Spatiotemporal Information in Semantic Web Applications, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, July 2011. (Technical Report TR-TUC-ISL-05-2011)

Publication Type: Technical Reports [abstract] [file]

Batsakis S., Petrakis E.: SOWL: A Framework for Handling Spatio-Temporal Information in OWL 2.0, 5th International Symposium on Rules: Research Based and Industry Focused (RuleML' 2011), Barcelona, Spain, July 19-21, 2011.

Publication Type: Conference Publications [abstract] [file]

Batsakis S., Petrakis E.: Integrated Ontologies for Spatial Scene Descriptions, in Qualitative Spatio-Temporal Representation and Reasoning: Trends and Future Directions, IGI Global (book chapter), S. M Hazarika (Eds), June 2011.

Publication Type: Book Chapters [abstract] [file]

Makri X.: 4D-Fluents Plug-In: A Tool for Handling Temporal Ontologies in Protégé, Diploma Thesis, Department of Electronic and Computer Engineering, Technical University of Crete, May 2011. (Technical Report TR-TUC-ISL-02-2011)

Publication Type: Technical Reports [abstract] [file]

Batsakis S., Petrakis E.: Representing Temporal Knowledge in the Semantic Web: the Extended 4d-fluents Approach, 2nd International Workshop on Combinations of Intelligent Methods and Applications (CIMA' 2010), October 27-29, 2010, Arras, France

Publication Type: Workshop Proceedings [abstract] [file]

Batsakis S., Petrakis E.: SOWL:Spatio-temporal Representation, Reasoning and Querying over the Semantic Web, 6th International Conference on Semantic Systems (I-SEMANTICS' 2010), Graz, Austria, September 1-3, 2010.

Publication Type: Conference Publications [abstract] [file]

Batsakis S., Petrakis E.: Representing and Reasoning over Spatio-Temporal Information in OWL 2.0, 6th Workshop on Semantic Web Applications and Perspectives (SWAP' 2010), Bressanone, Italy, September 21-22, 2010.

Publication Type: Workshop Proceedings [abstract] [file]

Batsakis S., Petrakis E.: SOWL: Representing Spatio-Temporal Information in OWL, 7th Extended Semantic Web Conference (ESWC'2010), Heracklion, Crete, 30 May - 3 June, 2010. Poster Paper.

Publication Type: Conference Publications [abstract] [file]

Koletsis P., Petrakis E.: SIA: Semantic Image Annotation using Ontologies and Image Content Analysis, 7th Intern. Conference on Image Analysis and Recognition (ICIAR' 2010), Povoa de Varzim, Portugal, June 21-23, 2010.

Publication Type: Conference Publications [abstract] [file]

Raftopoulou P., Petrakis E., Tryfonopoulοs C.: Rewiring Strategies for Semantic Overlay Networks, Distributed and Parallel DataBases (DAPD), Special issue on data management in Peer-to-Peer systems, Vol. 26, No. 2-3, pp. 181-205, Dec. 2009

Publication Type: Journal Publications [abstract] [file]

Baratis E., Maris N., Petrakis E., Batsakis S., Papadakis N.: The TOQL system, 11th International Symposium on Spatial and Temporal Databases (SSTD 2009), July 8-10, 2009, Aalborg, Denmark. Demo paper

Publication Type: Conference Publications [abstract] [file]

Baratis E., Batsakis S., Petrakis E., Maris N., Papadakis N.: TOQL: Temporal Ontology Querying Language, 11th International Symposium on Spatial and Temporal Databases (SSTD 2009), July 8-10, 2009, Aalborg, Denmark.

Publication Type: Conference Publications [abstract] [file]

Maris N.: A reasoner for querying temporal ontologies, Diploma in Electronic and Computer Engineering, Department of Electronic and Computer Engineering, Technical University of Crete, Greece, Febrouary 2009. (Technical Report TR-TUC-ISL-01-2009)

Publication Type: Technical Reports [abstract] [file]

Drymonas E., Zervanou K., Petrakis E.: The TSRM Approach in the Document Retrieval Application, 13th International Conference on Applications of Natural Language to Information Systems, June 24-27, 2008, London, UK.

Publication Type: Conference Publications [abstract] [file]

Petrakis E., Varelas G., Chliaoutakis A., Raftopoulou P.: Design and Evaluation of Semantic Similarity Measures for Concepts Stemming from the Same or Different Ontologies, 4th Workshop on Multimedia Semantics (WMS'06), Chania, Crete, Greece, June 19-21, 2006, pp. 44-52. Click here for transparencies.

Publication Type: Workshop Proceedings [abstract] [file]

Chliaoutakis A., Varelas G., Petrakis E., Milios E.: MedSearch: A Retrieval System for Medical Information Based on Semantic Similarity, 10th ECDL European Conference on Research and Advanced Technology for Digital Libraries (ECDL'2006), September, 17-22, 2006. Alicante, Spain.

Publication Type: Conference Publications [abstract] [file]

Petrakis E., Kontis K., Voutsakis E., Milios E.: Relevance Feedback Methods for Logo and Trademark Image Retrieval on the Web, Acm symposium on Applied Computing (SAC'2006), Special Track on Information Access and Retrieval (IAR), Dijon, France, April 23-27, 2006.

Publication Type: Conference Publications [abstract] [file]

Chliaoutakis A., Varelas G., Voutsakis E., Petrakis E., Milios E.: Information Retrieval by Semantic Similarity, Journal on Semantic Web and Information Systems (IJSWIS), Special Issue of Multimedia Semantics, Vol. 3, No. 3, July/September, 2006, pp. 55-73, Copyright 2006, Idea Group Inc. www.idea-group.com. Posted by permission of the publisher.

Publication Type: Journal Publications [abstract] [file]

Petrakis E., Varelas G., Chliaoutakis A., Raftopoulou P.: X-Similarity: Computing Semantic Similarity between Concepts from Different Ontologies, Journal of Digital Information Management (JDIM), December 2006.

Publication Type: Journal Publications [abstract] [file]

Chliaoutakis A., Zervanou K., Petrakis E., Milios E.: Automatic Document Indexing in Large Medical Collections, ACM International Workshop on Health Information and Knowledge Management (HIKM 2006), November 11, 2006, Arlington, VA, USA.

Publication Type: Workshop Proceedings [abstract] [file]

Raftopoulou P., Petrakis E.: Semantic Similarity Measures: A Comparison Study, Technical Univ. of Crete (TUC), Dept. of Electronic and Computer Engineering, Chania, Crete, Greece. (Technical Report TR-TUC-ISL-04-2005) [ps]

Publication Type: Technical Reports [abstract] [file]

Varelas G., Voutsakis E., Raftopoulou P., Petrakis E., Milios E.: Semantic Similarity Methods in WordNet and their Application to Information Retrieval on the Web, 7th ACM International Workshop on Web Information and Data Management (WIDM 2005), pp. 10-16, Nov. 5, 2005, Bremen, Germany. Click here for transparencies (in ppt).

Publication Type: Workshop Proceedings [abstract] [file]

Voutsakis E., Petrakis E., Milios E.: Weighted Link Analysis for Logo and Trademark Image Retrieval on the Web, The 2005 IEEE/WIC/ACM International Conference on Web Intelligence (WI2005), pp. 581-585, Sept. 19-22, 2005, Compiegne University of Technology, France. Click here for transparencies (in ppt).

Publication Type: Conference Publications [abstract] [file]

Doulaverakis C., Vagionitis S., Zervakis M., Petrakis E.: Adaptive Methods for Motion Characterization and Segmentation of MPEG Compressed Frame Sequence, Intern. Conference on Image Analysis and Recognition (ICIAR'2004), Porto, Portugal, Sept./Oct. 2004, Proc. Part I, Springer Verlag (LNCS 3211), pp. 310-317.

Publication Type: Conference Publications [abstract] [file]