Research Interests
- Text and Multimedia mining
- Machine Learning (mainly classification: semi-supervised learning, kernel methods, graph-based methods, large-scale linear methods)
- Content recognition in text and Information Extraction
- Information Retrieval and recommender systems based on mined data
- “Non-classic” NLP tasks such as Opinion Mining and Web Identity Disambiguation, and processing of noisy text such as tweets, blogs, and spam email
- Link and social network analysis together with content analysis of hypermedia
Publications
- S. Mazilu and J. Iria. L1 vs. L2 Regularization in Text Classification when Learning from Labeled Features. In Proceedings of the 10th IEEE International Conference on Machine Learning and Applications, Honolulu, Hawaii, December 2011.
- C. Kadar and J. Iria. Domain Adaptation for Text Categorization by Feature Labeling. In Proceedings of the 33rd European Conference on Information Retrieval (ECIR'11), Dublin, Ireland, April 2011 (runner up for best paper award).
- C. Kadar, D. Wiesmann, J. Iria, D. Husemann and M. Lucic. Automatic Classification of Change Requests for Improved IT Service Quality. In Proceedings of the SRII Global Conference 2011, San Jose, California, USA, March 2011.
- A. Gentile, Z. Zhang, L. Xia and J. Iria. Graph-based Semantic Relatedness for Named Entity Disambiguation. Serdica Journal of Computing, 2(4), May 2010.
- Z. Zhang, J. Iria and F. Ciravegna. Improving Domain-specific Entity Recognition with Automatic Term Recognition and Feature Extraction. In Proceedings of the 7th International Conference on Language Resources and Evaluation (LREC'10), Malta, May 2010.
- Z. Zhang, A. Gentile, L. Xia, J. Iria and S. Chapman. A Random Graph Walk based Approach to Compute Semantic Relatedness Using Knowledge from Wikipedia. In Proceedings of the 7th International Conference on Language Resources and Evaluation (LREC'10), Malta, May 2010.
- A. Gentile, Z. Zhang, L. Xia and J. Iria. Semantic Relatedness approach for Named Entity Disambiguation. In M. Agosti, F. Esposito, C. Thanos (eds.): Digital Libraries: Communications in Computer and Information Science, Springer-Verlag, Vol. 91, 2010.
- J. Iria, S. Nikolopoulos, M. Mozina, A. Lavelli, C. Giuliano, L. Romano, D. Kuznar and I. Kompatsiaris. Cross-Media Knowledge Extraction in the Car Manufacturing Industry. In Proceedings of the 21st IEEE International Conference on Tools with Artificial Intelligence (ICTAI’09), New Jersey, USA, November 2009.
- M. Rowe and J. Iria. Learning to Classify Identity Web References using RDF Graphs. Poster at the 8th International Semantic Web Conference (ISWC’09), Washington, USA, October 2009.
- A. Gentile, Z. Zhang, L. Xia and J. Iria. Graph-based Semantic Relatedness for Named Entity Disambiguation. In Proceedings of the 1st International Conference on Software, Services and Semantic Technologies (S3T), Sofia, Bulgaria, October 2009. Best Student Paper Award.
- Z. Zhang, L. Xia, M. A. Greenwood and J. Iria. Too Many Mammals: Improving the Diversity of Automatically Recognized Terms. In Proceedings of the International Conference on Recent Advances in Natural Language Processing 2009 (RANLP'09), Borovets, Bulgaria, September 2009.
- L. Xia, A. Gentile, J. Munro and J. Iria. Improving Patient Opinion Mining through Multi-step Classification. In Proceedings of the 12th International Conference on Text, Speech and Dialogue (TSD'09), Pilsen, Czech Republic, September 2009.
- J. Iria. Automating Knowledge Capture in the Aerospace Domain. In Proceedings of the 5th ACM International Conference on Knowledge Capture (K-CAP'09), Redondo Beach, California, September 2009.
- Z. Zhang and J. Iria. A Novel Approach to Automatic Gazetteer Generation using Wikipedia. In Proceedings of the ACL'09 Workshop on Collaboratively Constructed Semantic Resources, Singapore, August 2009.
- J. Iria, J. Magalhaes and Fabio Ciravegna. Web News Categorization using a Cross-Media Document Graph. In Proceedings of the ACM International Conference on Image and Video Retrieval (CIVR'09), Santorini, Greece, July 2009.
- J. Iria and J. Magalhaes. Exploiting Cross-Media Correlations in the Categorization of Multimedia Web Documents. In Proceedings of the IJCAI'09 Workshop on Cross-Media Information Access and Mining, Pasadena, USA, July 2009.
- J. Iria. A Core Ontology of Knowledge Acquisition. In Proceedings of the 6th European Semantic Web Conference (ESWC'09), Heraklion, Crete, June 2009.
- A. Dadzie, J. Iria, D. Petrelli and L. Xia. The XMediaBox: Sensemaking through the Use of Knowledge Lenses. In L. Aroyo et al. (eds.), Lecture Notes in Computer Science, Springer-Verlag, Vol. 5554, 2009.
- J. Magalhaes, A. Chakravarthy, A. Dadzie, L. Xia, J. Iria, M. A. Greenwood, D. Petrelli and F. Ciravegna. Large scale cross-media knowledge sharing and reuse. In Proceedings of the 6th IEEE International Workshop on Content-based Multimedia Indexing, London, UK, June 2008.
- L. Xia and J. Iria. An Approach to Modeling Heterogeneous Resources for Information Extraction. In Proceedings of the 6th International Conference on Language Resources and Evaluation (LREC'08), Marrakesh, Morocco, 26-30 May, 2008.
- M. A. Greenwood and J. Iria. Saxon: An Extensible Multimedia Annotator. In Proceedings of the 6th International Conference on Language Resources and Evaluation (LREC'08), Marrakesh, Morocco, 26-30 May, 2008.
- Z. Zhang, J. Iria, C. Brewster and F. Ciravegna. A Comparative Evaluation of Term Recognition Algorithms. In Proceedings of the 6th International Conference on Language Resources and Evaluation (LREC'08), Marrakesh, Morocco, 26-30 May, 2008.
- J. Iria. Relation Extraction for Mining the Semantic Web, in Ravi Kumar Jain B (ed.), Semantic Web - Concepts And Applications, Icfai University Press, 2008.
- A. Dadzie, R. Bhagdev, A. Chakravarthy, S. Chapman, J. Iria, V. Lanfranchi, J. Magalhaes, D. Petrelli and F. Ciravegna. Applying Semantic Web Technologies to Knowledge Sharing in Aerospace Engineering. Journal of Intelligent Manufacturing, June 2008.
- R. Bhagdev, J. Butters, A. Chakravarthy, S. Chapman, A. Dadzie, M. Greenwood, J. Iria and F. Ciravegna. Managing Document-based Knowledge in Large Organisations via Semantic Web Technologies. In Jennifer Golbeck, Peter Mika (eds.), Semantic Web Challenge 2007, CEUR, November 2007.
- J. Iria, V. Uren, A. Lavelli, S. Blohm, A. Dadzie, T. Franz, J. Magalhaes, S. Nikolopoulos, I. Kompatsiaris, C. Preisach and P. Slavazza. Enhancing Enterprise Knowledge Processes via Cross-Media Extraction. Poster at the 4th ACM International Conference on Knowledge Capture (K-CAP'07), Whistler, BC, USA, October 2007.
- C. Brewster, J. Iria, Z. Zhang, F. Ciravegna, L. Guthrie and Y. Wilks. Dynamic Iterative Ontology Learning. In Proceedings of the International Conference on Recent Advances in Natural Language Processing 2007 (RANLP'07), Borovets, Bulgaria, September 2007.
- J. Iria, L. Xia and Z. Zhang. WIT: Web People Search Disambiguation using Random Walks. In Proceedings of the 4th International Workshop on Semantic Evaluations (Semeval 2007), Prague, Czech Republic, June 2007.
- J. Iria, A. Chakravarthy and N. Ireson. Redundancy-based Filtering and Recommendation of Syndicated News Feeds. Technical Report, U. Sheffield, December 2006.
- J. Iria and F. Ciravegna. A Methodology and Tool for Representing Language Resources for Information Extraction. In Proceedings of the 5th International Conference on Language Resources and Evaluation (LREC'06), Genoa, Italy, May 2006.
- J. Iria, C. Brewster, F. Ciravegna and Y. Wilks. An Incremental Tri-Partite Approach To Ontology Learning. In Proceedings of the 5th International Conference on Language Resources and Evaluation (LREC'06), Genoa, Italy, May 2006.
- J. Iria, N. Ireson and F. Ciravegna. An Experimental Study on Boundary Classification Algorithms for Information Extraction using SVM. In Proceedings of the EACL 2006 Workshop on Adaptive Text Extraction and Mining, Trento, Italy, April 2006.
- V. Uren, P. Cimiano, J. Iria, S. Handschuh, M. Vargas-Vera, E. Motta and F. Ciravegna. Semantic annotation for knowledge management: Requirements and a survey of the state of the art. Journal of Web Semantics, 4 (1), Elsevier, January 2006.
- C. Brewster, J. Iria, F. Ciravegna and Y. Wilks. The Ontology: Chimaera or Pegasus. In Proceedings of the Dagstuhl Seminar on Machine Learning for the Semantic Web, Dagstuhl, Germany, February 2005.
- J. Iria. Relation Extraction for Mining the Semantic Web. In Proceedings of the Dagstuhl Seminar on Machine Learning for the Semantic Web, Dagstuhl, Germany, February 2005.
- J. Iria. T-Rex: A Flexible Relation Extraction Framework. In Proceedings of the 8th Annual Colloquium for the UK Special Interest Group for Computational Linguistics, Manchester, January 2005.
- J. Iria, F. Ciravegna, P. Cimiano, A. Lavelli, E. Motta, L. Gilardoni, and E. Moench. Integrating Information Extraction, Ontology Learning and Semantic Browsing into Organizational Knowledge Processes. In Proceedings of the EKAW 2004 Workshop on Application of Language and Semantic Technologies to support Knowledge Management Processes. Whittlebury Hall, UK, October 2004.
- J. Iria, S. Chapman, F. Ciravegna, and The Dot.Kom Consortium. Dot.Kom - Designing Information Extraction for Knowledge Management with Semantic Web Technology. Poster presented at the First European Semantic Web Symposium, Heraklion, Greece, May 2004.
- J. Iria. Semantic and Context-Aware Service Discovery in Spontaneous Networks. MSc in Computer Science Thesis, Instituto Superior Técnico, Technical University of Lisbon, Lisbon, Portugal, February 2004.
- F. Ciravegna, A. Dingli, J. Iria and Y. Wilks. Multi-strategy Definition of Annotation Services in Melita. In Proceedings of the ISWC-03 Workshop on Human Language Technology for the Semantic Web and Web Services, Florida, USA, October 2003.
- J. Iria. Semantic Service Discovery in Smart Home Environments. Engineering Licentiate Thesis, Instituto Superior Técnico, Technical University of Lisbon, Lisbon, Portugal, July 2002.
- J. Iria, A. David, and N. Horta. Towards a Framework for Semantic Service Discovery in Ubiquitous P2P Environments. In Proceedings of the 2002 International Conference on Internet Computing, Las Vegas, USA, June 2002.
Hobbies
- My life companion
- Play:
- football
- the odd turn-based strategy game
- the odd casual game with partner/friends
- Forget that computers exist and see places
Contact
Please use j dot iria at dcs dot shef dot ac dot uk
organisations, information and knowledge groupdepartment of computer science
university of sheffield
Regent court, 211 Portobello Street, Sheffield, S1 4DP, United Kingdom tel:+44(0)114-22.21942 fax:+44(0)114-22.21810