Information Retrieval Lab

Information Retrieval Group Univ. A Coruña

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Presentation

Information Retrieval Lab

The IRLab is part of the Department of Computer Science of the University of A Coruña. It is included in the research catalogs of the University of A Coruña (G000494) and Consellería de Innovación e Industria (08IDI1714), and it is coordinated by Professor Alvaro Barreiro.

The group has been working on basic IR research topics: retrieval models and efficiency issues. This work was done with the support of the Spanish and Galician research agencies. The group is also interested in applying these results in collaborations with local companies and institutions. To find out more about our industrial and technology transfer activity please visit www.irlab.org.

Some members of this group are interested in other Computer Science topics such as artificial intelligence, logics, knowledge representation, formal verification and genetic algorithms.

Group Leader: Alvaro Barreiro

Postal Address:
Lab. 4.2, Fac. Informática, Universidade da Coruña,
Campus de Elviña s/n, 15071, A Coruña, SPAIN

Phone contact:
Voice: +34 981 167 000 ext. 1276
Fax: +34 981 167 160

Group Members

Faculty

Alvaro Barreiro García, Prof. (Group Leader)
José Luis Freire Nistal, Prof.
Roi Blanco González, Ph.D.
José Pedro Cabalar Fernández, Ph.D.
María Felicidad Aguado Martín, Ph.D.
Concepción Vidal Martín, Ph.D.
María Teresa Iglesias Otero, Ph.D.
Miguel Rodríguez Rubio, Ph.D.
Gilberto Pérez Vega, Ph.D.
Ana María Vieites Rodríguez, Ph.D.
Antonio Yáñez Izquierdo

Ph.D. Students

José María Casanova Crespo
Javier Parapar López
Manuel Eduardo Ares Brea
Ismael Hasan Romero
Xosé Ramón de la Puente Romay
Martín Diéguez Lodeiro

Collaborators

Manuel Antonio Presedo Quindimil, Ph.D.

Past Members

David E. Losada, Ph. D.

Research Projects

Recuperación de Información y análisis de sentimientos en la web social. Ministerio de Economía y Competitividad, ref. TIN2012-33867, IP: Alvaro Barreiro.
Recuperación de Información sobre distintos medios con una perspectiva multidimensional: relevancia, novedad, personalización y contexto Subproyecto UDC, Ministerio de Ciencia e Innovación, ref. TIN2008-06566-C04-04, IP: Alvaro Barreiro.
Mellora na recuperación de noticias e no acceso á información financieira : Recuperación de noticias web, Consellería de Innovación e Industria, Xunta de Galicia, ref. 07SIN005206PR IP: Alvaro Barreiro.
Rede Galega de Procesamento de Linguaxe e Recuperación de Información, Coordinador: Manuel Vilares
Coordinador grupo IRLab UDC: Alvaro Barreiro
Recuperación de sentencias relevantes y noveles usando modelos y técnicas de Recuperación de Información, Ministerio de Educación y Ciencia, ref. TIN 2005-08521-C02-02, (incentivo Xunta Galicia ref. PGIDIT06PXIC105010PN) IP: Alvaro Barreiro.
Implementación y evaluación en grandes colecciones de documentos del modelo lógico de Recuperación de Información IR-PLBR, Ministerio de Ciencia y Tecnología, refs. TIC2002-00947, (incentivo Xunta Galicia ref. PGIDIT03PXI10501PN) IP: Alvaro Barreiro.

Industrial Projects

For many years, the IRLab has been applying its knowledge and research results to the development of useful and innovative applications in the field of information retrieval. All these developments are carried out in the IRLab-CITIC, at the Research Center on Information and Communication Technologies, of which the IRLab is a founding member. The CITIC's mission is to provide research and development services to companies or institutions in the ICT field. The Quality Assurance Project Office of the center guarantees the quality of the developments carried out in the centre. The CITIC owns the ISO 9001 certification and currently is implanting CMMI certification and UNE 166002 regulation.

The IRLab is specially concerned about the use of software development methodologies that allow quality assurance of the final product as well as flexibility and reusing. To guarantee these objectives, the group uses agile variants of Rational Unified Process software development methodology which allows an iterative and incremental process, with continuous verification and products that can be delivered at the end of each iteration. Furthermore, the software architectures applied in our products allows their scalability, to face with processing of huge amounts of information, distributing the processing among various computers.

Some of our products are NowOnWeb,a news IR system; Lexisla, a legal IR system; Coruña Corpus Tool, a corpus management system; adSearch, a advertising IR system or mOCRa. For more information please visit www.irlab.org.

Publications

Javier Parapar, Alejandro Bellogín, Pablo Castells, Álvaro Barreiro. Relevance-Based Language Modelling for Recommender Systems. Information Processing and Management, vol. 49, issue 4, pp. 966-980, 2013. ISSN 0306-4573

Javier Parapar, Álvaro Barreiro. Language Modelling of Constraints for Text Clustering, Proceedings of the 34th European Conference on Information Retrieval Research ECIR 2012, Barcelona, Spain, April 2012, Lecture Notes in Computer Science vol. 7224, pp. 352-363, 2012.The original publication is available at www.springerlink.com
Alejandro Bellogín, Javier Parapar. Using Graph Partitioning Techniques for Neighbour Selection in User-Based Collaborative Filtering.Proceedings of the 6th ACM Conference on Recommender Systems, pp. 213-216, ACM RecSys 2012, Dublin, Ireland, September 2012. Best SP Award. The original publication is available at ACM Portal.
Javier Parapar, David E. Losada, Álvaro Barreiro. A learning-based approach for the identification of sexual predators in chat logs . CLEF 2012 Evaluation Labs and Workshop Online Working Notes. PAN 2012, Rome, Italy, September 2012. ISBN 978-88-904810-3-1, ISSN 2038-4963
M. Eduardo Ares, Javier Parapar, Álvaro Barreiro. An Experimental Study of Constrained Clustering Effectiveness in Presence of Erroneous Constraints. Information Processing and Management 48(3) pp. 537-551, 2012.
Ismael Hasan, Javier Parapar, Álvaro Barreiro. Improving the Extraction of Text in PDFs by Simulating the Human Reading Order, Journal of Universal Computer Science, 18(5), pp.623-649 2012.
Javier Parapar, María M. Vidal, José Santos. Finding the Best Parameter Setting: Particle Swarm Optimisation. Proceedings of the 2nd Spanish Conference on Information Retrieval, CERI'12, pp. 49-60, Valencia, Spain, June 17-19, 2012.
M. Eduardo Ares, Álvaro Barreiro. Constrained Text Clustering with Word Trigrams. Proceedings of the 2nd Spanish Conference on Information Retrieval, CERI'12, pp. 13-24, Valencia, Spain, June 17-19, 2012.
Javier Parapar, Álvaro Barreiro. Análisis de herramientas para la docencia práctica en Recuperación de Información. To be published in 9th International Forum on the Quality Assessment of Higher Education and Research (FECIES 2012), in press.

Roi Blanco, Christina Lioma. Graph-based term weighting for information retrieval, Information Retrieval, 2011. The original publication is available at SpringerLink
Javier Parapar, Álvaro Barreiro. A Cluster Based Pseudo Feedback Technique which Exploits Good and Bad Clusters, Proc. of the 14th Conference of the Spanish Association for Artificial Intelligence, CAEPIA 2011, 7-11 November 2011, Tenerife, Spain, Lecture Notes in Artifical Intelligence 7023, pp 403-412, 2011. The original publication is available at SpringerLink
Javier Parapar, Álvaro Barreiro. Promoting Divergent Terms in the Estimation of Relevance Models, Proceedings of the Third International Conference on the Theory of Information Retrieval, ICTIR 2011, 12-14 September 2011, Bertinoro, Italy, Lecture Notes in Computer Science vol. 6931, pp. 77-88, 2011.
M. Eduardo Ares, Javier Parapar, Álvaro Barreiro. Improving text clustering with social tagging, Proceedings of the Fifth International AAAI Conference on Weblogs and Social Media ICWSM 2011, 17-21 July, Barcelona.
Renato de Freitas Bulcão-Neto, José Antonio Camacho-Guerrero, Márcio Dutra, Álvaro Barreiro, Javier Parapar, Alessandra Alaniz Macedo. The use of latent semantic indexing to mitigate OCR effects of related document images. Journal of Universal Computer Science, vol. 17, no. 1, pp. 64-80, 2011.
M. Eduardo Ares, Javier Parapar, Álvaro Barreiro. Agrupamiento documental, en F. Cacheda Seijo, J.M. Fernández.Luna y J. Huete (eds.). Recuperación de Información: un enfoque práctico y multidisciplinar, capítulo 12, pp. 393-418, RA-MA, RA-MA, Septiembre 2011.

Roi Blanco, Alvaro Barreiro. Probabilistic static pruning of inverted files, ACM Transactions on Information Systems, vol 28(1), 1-33, 2010.
Javier Parapar, Jorge-López-Castro, Álvaro Barreiro. Blog Snippets: A Comments-Biased Approach, Proceedings of the 33rd ACM International Conference on Research and Development in Information Retrieval SIGIR'10, Geneva, Switzerland, July 19-23, pp. 711-712, 2010. The original publication is available at ACM Portal.
Ronald T. Fernández , Javier Parapar, David E. Losada, Álvaro Barreiro. Where to Start Filtering Redundancy? A Cluster-Based Approach, Proceedings of the 33rd ACM International Conference on Research and Development in Information Retrieval SIGIR'10, Geneva, Switzerland, July 19-23, pp.735-736, 2010. The original publication is available at ACM Portal.
M. Eduardo Ares, Javier Parapar, Álvaro Barreiro. Improving Alternative Text Clustering Quality in the Avoiding Bias Task with Spectral and Flat Partition Algorithms, Proceedings of the 21st International Conference on Database and Expert Systems Applications DEXA'10, Bilbao, Spain, August 30 - September 3 2010, Lecture Notes in Computer Science, vol. 6262, Part II, pp. 407-421, 2010.The original publication is available at SpringerLink
Javier Parapar, Jorge-López-Castro, Álvaro Barreiro. Blog Posts and Comments Extraction and Impact on Retrieval Effectiveness, Proceedings of the 1st Spanish Conference on Information Retrieval CERI'10, Madrid, Spain, June 15-17, pp.5-16, 2010. The original publication is also available at the conference site.
David Lojo, David E. Losada, Álvaro Barreiro. Evaluación de técnicas de Aprendizaje Activo para codificación CIE-9-MC de informes de alta hospitalaria, Proceedings of the 1st Spanish Conference on Information Retrieval CERI'10, Madrid, Spain, June 15-17, pp. 171-182, 2010. The original publication is also available at the conference site.
Renato de Freitas Bulcão-Neto, José Antonio Camacho-Guerrero, Álvaro Barreiro, Javier Parapar, Alessandra Alaniz Macedo. An Automatic Linking Service of Document Images Reducing the Effects of OCR Errors with Latent Semantics. Proceedingsof the 25th ACM Symposium On Applied Computing, ACM SAC 2010, pp 13-17, Switzerland, March 22-26 2010. The original publication is available at ACM Portal.
Ismael Hassan, Javier Parapar, Alvaro Barreiro. Lexisla: a legislative Information Retrieval System, Proceedings of PLN-E 2010, Workshop NLP in the Enterprise: Envisioning the Next 10 Years, SEPLN 2010, Valencia, September 7, 2010, CEUR Workshop Proceedings, vol-697, pp. 1-4.
Xosé R. De la Puente, Ismael Hassan. mOCRa: Mobile OCR Application, Proceedings of PLN-E 2010, Workshop NLP in the Enterprise: Envisioning the Next 10 Years, SEPLN 2010, Valencia, September 7, 2010.CEUR Workshop Proceedings, vol-697, pp. 5-8.

M. Eduardo Ares, Javier Parapar, Alvaro Barreiro. Avoiding Bias in Text Clustering Using Constrained K-means and May-Not-Links, Proceedings of the 2nd International Conference on the Theory of Information Retrieval ICTIR 2009, Cambridge, UK, Lecture Notes in Computer Science 5766, pp. 322-329, 2009. The original publication is available at SpringerLink.
Christina Lioma, Roi Blanco, Raquel Mochales-Palau, Marie-Francine Moens. A Belief Model of Query Difficulty that uses Subjective Logic, Proceedings of the 2nd International Conference on the Theory of Information Retrieval ICTIR 2009, Cambridge, UK, Lecture Notes in Computer Science 5766, pp. 92-103, 2009. The original publication is available at SpringerLink.
Christina Lioma, Roi Blanco, Marie-Francine Moens. A Logical Inference Approach to Query Expansion with Social Tags, Proceedings of the 2nd International Conference on the Theory of Information Retrieval ICTIR 2009, Cambridge, UK, Lecture Notes in Computer Science 5766, pp.358-361, 2009. The original publication is available at SpringerLink.
Javier Parapar, David E. Losada, Alvaro Barreiro. Compression-based document length prior for language models, Proceedigns of the 32nd ACM International Conference on Research and Development in Information Retrieval SIGIR'09, pp. 652-653, Boston, July 19-23 2009.The original publication is available at ACM Portal.
Roi Blanco, Christina Lioma. Mixed monolingual homepage finding in 34 languages - The role of language script and search domain, Information Retrieval 12(3), pp 324-351, June 2009.
Christina Lioma, Roi Blanco. Part of speech based term weighting for information retrieval, Proceedings of the 31st European Conference on Information Retrieval Research ECIR 2009, Toulouse, France, Lecture Notes in Computer Science, vol. 5478, pp. 412-423, 2009.The original publication is available at www.springerlink.com
Javier Parapar, Álvaro Barreiro. Evaluation of text clustering algorithms with n-gram-based document fingerprints, Proceedings of the 31st European Conference on Information Retrieval Research ECIR 2009, Toulouse, France, April 2009, Lecture Notes in Computer Science vol. 5478, pp. 645-653, 2009.The original publication is available at www.springerlink.com
Javier Parapar, Ana Freire, Álvaro Barreiro. Revisiting n-gram based models for retrieval in degraded large collections, Proceedings of the 31st European Conference on Information Retrieval Research ECIR 2009, Toulouse, France, April 2009, Lecture Notes in Computer Science vol. 5478, pp. 680-684, 2009.The original publication is available at www.springerlink.com
Raúl Ramos, Álvaro Barreiro. Enabling the Grid for experiments in distributed information retrieval, Proceedings of the first EELA-2 Conference, CIEMAT pubs, pp. 21-30, Bogotá, Colombia, February 2009.
David Lojo, David E. Losada, Álvaro Barreiro. CIE-9-MC code classification with knn and SVM, Proceedings of IWINAC 2009 Part II, Lecture Notes in Computer Science 5602, pp. 499-508, Santiago, June 2009. The original publication is available at www.springerlink.com
M. Eduardo Ares, Álvaro Barreiro. Using a rank fusion technique to improve shot boundary detection effectiveness, Proceedings of the twelve International Conference on Computer Aided System Theory, EUROCAST 2009, Lecture Notes in Computer Science 5717, pp. 247-254, Las Palmas de Gran Canaria, February 2009.The original publication is available at www.springerlink.com

Javier Parapar, Alvaro Barreiro. Winnowing-based text clustering, Proceedings of 17th ACM Conference on Information and Knowledge Management CIKM 2008, pp. 1353-1354, Napa Valley, California, October 2008.The original publication is available at ACM Portal.
Roi Blanco, Fabrizio Silvestri. ECIR 2008 Workshop on Efficiency Issues in Information Retrieval SIGIR Forum 42(1) pp 59-62.
Roi Blanco, Fabrizio Silvestri (organizers). EIIR Efficiency Issues in Information Retrieval Workshop, 30th European Conference on Information Retrieval Research ECIR2008, Glasgow, UK, April 2008.
Roi Blanco, Alvaro Barreiro. Probabilistic documents length priors for language models. Proceedings 30th European Conference on Information Retrieval Research ECIR2008, Glasgow, UK, April 2008, Lecture Notes in Computer Science, Vol: 4956, pp. 394-405 The original publication is available at www.springerlink.com
Ismael Hasan, Javier Parapar, Roi Blanco. Segmentation of legislative documents using a domain-specific lexicon, Proceedings DEXA WS FlexDBIST 2008 pp 665-669, Torino, IT, September 2008.
Javier Parapar, Álvaro Barreiro. The Information Retrieval Lab at the University of A Coruña BCS-IRSG Informer, Vol 25, pp. 5- 7, ISSN: 0950-4974 .
Javier Parapar, Álvaro Barreiro. An Effective and Efficient Web News Extraction Technique for an Operational NewsIR System. XIII Conferencia de la Asociación Española para la Inteligencia Artificial CAEPIA - TTIA 2007. Actas Vol II, pp. 319-328, Salamanca, Spain. 12-16 November 2007.
Isabel Moskowich-Spiegel, Javier Parapar. Writing Science, Compiling Science: The Coruña Corpus of English Scientific Writing. XXXI Congreso Internacional de la Asociación Española De Estudios Anglo-Norteamericanos, AEDEAN 2007. A Coruña, Spain. 14-17 November 2007. Accepted paper, in press.
Javier Parapar. Generating News Summaries at Indexing Time. BCS IRSG Symposium: Future Directions in Information Access, FDIA 2007, Glasgow, Scotland. 28-29 August 2007. Poster session and publication, BCS eWic ISSN 1477-9358.
Javier Parapar, Isabel Moskowich-Spiegel. The Coruña Corpus Tool. Presented in XXIII Congreso de la Sociedad Española de Procesamiento del Lenguaje Natural, SEPLN 2007. Sevilla, Spain, 10-12 September 2007. Published in Revista del Procesamiento de Lenguaje Natural Vol 39, pp. 289-290, ISSN: 1135-5948.
Javier Parapar, Álvaro Barreiro. NowOnWeb: A NewsIR System. Presented in XXIII Congreso de la Sociedad Española de Procesamiento del Lenguaje Natural, SEPLN 2007. Sevilla, Spain, 10-12 September 2007. Published in Revista del Procesamiento de Lenguaje Natural Vol 39, pp. 287-288, ISSN: 1135-5948.
Roi Blanco, Alvaro Barreiro. Boosting static pruning of inverted files. Poster session of the 28th ACM International Conference on Research and Development in Information Retrieval SIGIR 2007. Amsterdam, The Netherlands, July 23-27, 2007
Roi Blanco, Christina Lioma. Random Walk Term Weighting for Information Retrieval. 28th ACM International Conference on Research and Development in Information Retrieval SIGIR 2007. Amsterdam, The Netherlands, July 23-27, 2007
Roi Blanco, Alvaro Barreiro. Static pruning of terms in inverted files. Proceedings 29th European Conference on Information Retrieval Research ECIR2007, Rome, Italy, April 2007, Lecture Notes in Computer Science, Vol: 4425, pp. 64-75 The original publication is available at www.springerlink.com
José M. Casanova, Manuel A. Presedo-Quindimil, Alvaro Barreiro. Overall comparison at standard levels of recall of multiple retrieval methods with the Friedman test. Proceedings 29th European Conference on Information Retrieval Research ECIR2007, Rome, Italy, April 2007, Lecture Notes in Computer Science, Vol: 4425, pp. 683-685 The original publication is available at www.springerlink.com
Javier Parapar, José M. Casanova, Álvaro Barreiro. Now On Web: News Search and Summarization.EUROCAST 2007. Full paper, Lecture Notes in Computer Science LNCS Vol.4739 pp. 225-232 ISBN: 978-3-540-75866-2. Las Palmas de Gran Canaria, Spain, February 12-16, 2007. Extended Abstract, EUROCAST 2007 Extended Abstracts, pp. 79-80 ISBN: 978-84-690-3603-7.
D. Parapar, A. Barreiro. Addendum to our ECIR 2006 paper: Results with the TREC 2004 Novelty Track dataset
D. Parapar, A. Barreiro. Sentence retrieval with LSI and topic identification, Proceedings 28th European Conference on Information Retrieval Research ECIR2006, London UK, April 10-12 2006, LNCS 3936, pp. 119-130. The original publication is available at www.springerlink.com
R. Blanco, A. Barreiro. TSP and cluster-based solutions to the reassignment of document identifiers, Information Retrieval, 9(4), 499-517, September 2006. The original publication is available at www.springerlink.com
D. Losada, A. Barreiro. Negations and document length in logical retrieval (extended version), Information Systems Vol. 31(7), pp 610-620 November 2006. The original publication is available at www.ScienceDirect.com
R. Blanco, A. Barreiro. Characterization of a simple case of the reassignment of document identifiers as a pattern sequencing problem, Poster session of the 28th ACM International Conference on Research and Development in Information Retrieval, Proceedings of ACM-SIGIR 2005, pp. 587-588, Salvador, Brasil, August 2005. ACM definitive version
R. Blanco, A. Barreiro. Document identifier reassignment through dimensionality reduction, Proceedings of the 27th European Conference on Information Retrieval Research ECIR2005, Santiago, Spain, March 2005, Lecture Notes in Computer Science 3408, pp. 375-387, 2005.
D. Parapar, A. Barreiro, D.E. Losada. Query expansion using Wordnet with a logical model of Information Retrieval, Proceedings of the IADIS International Conference on Applied Computing 2005, vol. I pp. 487-494, Algarve, Portugal, February 2005.
M.A. Presedo Quindimil, A. Barreiro. Evaluación de estrategias en Recuperación de Información, Actas I Congreso de Estadística e Investigación Operativa de Galicia y Norte de Portugal, Guimaraes, Portugal, Octubre 2005.
R. Blanco, A. Barreiro. A software architecture for efficient document identifier reassignment, Proceedings of Intelligent Information Processing Workshop EUROCAST 2005, Lecture Notes in Computer Science 3643, pp. 254-262, 2005. Las Palmas de Gran Canaria, Spain, February 2005.
D. Losada, A. Barreiro. Negations and document length in logical retrieval, Proceedings of the 11th International Symposium on String Processing and Information Retrieval (SPIRE 2004), Padova, Italy, October 2004, Lecture Notes in Computer Science 3246, pp. 196-207, 2004.
D. Losada, A. Barreiro. Negations as a high precision mechanism, Proceedings of the 26th European Conference on Information Retrieval Research ECIR2004, Sunderland, UK, April 2004, Proceedings Vol. 2 Poster Abstracts, pp. 11-12.
A. Barreiro, D. Losada. A theoretical study of logical retrieval in terms of a characterisation of knowledge revision, ACM SIGIR 2003 Workshop on Mathematical/Formal Methods in Information Retrieval, Toronto, Canada, July 28-Agust 1, 2003.
A. Barreiro, D. Losada. Análisis de la medida de distancia entre documentos y consultas en el modelo lógico de Recuperación de Información PLBR, II Jornadas de Tratamiento y Recuperación de la Información JOTRI 2003, pp. 257-264, Leganés, Madrid, Septiembre 2003.
D. Losada, A. Barreiro. Embedding Term Similarity and Inverse Document Frequency into a Logical Model of Information Retrieval Journal of the American Society for Information Science and Technology, 54(4), pp. 285-301, 2003.
D. Losada, A. Barreiro. Propositional logic representations for documents and queries: a large-scale evaluation, Proceedings of the 25th European Conference on Information Retrieval Research ECIR2003, Pisa, Italy, April 2003, Lecture Notes in Computer Science, vol 2633, pp. 219-234.
D. Losada, A. Barreiro. A logical model for information retrieval based on Propositional Logic and Belief Revision, The Computer Journal, 44(5), pp. 410-424, 2001.
D. Losada, A. Barreiro. An homogeneous framework to model relevance feedback, Poster session of the 24th ACM International Conference on Research and Development in Information Retrieval, ACM-SIGIR'2001, pp. 422-423, New Orleans, USA, September 2001. ACM definitive version
D. Losada, A. Barreiro. Rating the impact of logical representations on retrieval performance, Third International Workshop on Logical and Uncertainty Models for Information Systems LUMIS 2001, Proceedings of the 12nd International Workshop on Database and Expert System Applications DEXA 2001, pp. 247-253, Munich, Germany, September 2001.
D. Losada, A. Barreiro. Efficient algorithms for ranking documents represented as DNF formulas, ACM SIGIR 2000 Workshop on Mathematical/Formal Methods in Information Retrieval, Athens, Greece, July 24-28, published in Technology Letters, 4(1), pp. 16-24, 2000.
D. Losada, A. Barreiro. Retrieval Situations and Belief Change, Second International Workshop on Logical and Uncertainty Models for Information Systems LUMIS 2000, Proceedings of the 11th International Workshop on Database and Expert System Applications DEXA 2000, pp. 531-537, Greenwich, London, September 6-8, 2000.
D. Losada, A. Barreiro. Implementing Document Ranking within a Logical Framework, Proceedings of 7th International Symposium on String Processing and Information Retrieval (SPIRE 2000), pp. 188-198, Corunna, Spain, Setember 27-29, 2000.
D. Losada, A. Barreiro. Conceptualisation of a Belief Revision Approach to Information Retrieval, Poster session of the IEE Seminar on Searching for Information: Artificial Intelligence and Information Retrieval Approaches, pp. 18/1-18/3, Glasgow, UK, November 1999.
D. Losada, A. Barreiro. Using a Belief Revision Operator for Document Ranking in Extended Boolean Models, Proceedings of the 22nd ACM International Conference on Research and Development in Information Retrieval, SIGIR'99, pp. 66-73, Berkeley, USA, August 15- 19, 1999. ACM definitive version
A. Barreiro, D. Losada, R. Ramos. TWebS: An application of Terminological Logics in Web Searching, Actas IV Congreso ISKO-España EOCONSID'99, pp. 253-259, Granada, Abril 22-24, 1999.
D. Losada, R. Ramos, A. Barreiro. A Terminological Approach to Resource Discovery Mechanisms, Proceedings of the 6th Iberoamerican Conference on Artifical Intelligence IBERAMIA-98 (ODT), pp. 3-16, Lisboa, October 5-9, 1998.
A. Barreiro, R. Ramos, P. Cabalar. Un Modelo Terminológico para el problema de Recuperación de Datos, Actas de la VII Conferencia de la Asociación Española para la Inteligencia Artificial CAEPIA'97, pp. 745-754, Málaga, Noviembre 1997.

Ph.D. Dissertations

Javier Parapar. Relevance-Based Language Models: new estimations and applications. University of A Coruña, 2013 Advisor: Alvaro Barreiro.
Manuel Eduardo Ares Brea. Constrained Clustering Algorithms: practical issues and applications. University of A Coruña, 2013 Advisor: Alvaro Barreiro.
J. David Lojo Vicente. Clasificación automática de documentación clínica. University of A Coruña, 2013 Advisors: Alvaro Barreiro, David Losada.
Roi Blanco. Index compression for information retrieval systems University of A Coruña, September 2008 Advisor: Alvaro Barreiro.
David E. Losada. A logical model of Information Retrieval based on Propositional Logic and Belief Revision University of A Coruña, 2001. Advisor: Alvaro Barreiro.

Degree Projects in Computer Science

David E. Losada. Sistema terminológico para la recuperación inteligente de información en Internet. University of A Coruña, 1998.
Andrés García-Rodeja. Desarrollo de un sistema de filtrado de información para Internet. University of A Coruña, 2000.
Juan C. Vidal. Lenguaje e interfaz visual para un lenguaje terminológico. University of A Coruña, 2000.
Roi Blanco. Sistema de indexación para un modelo lógico de recuperación de información. University of A Coruña, 2001.
Rafael Martínez. Procesado de tópicos TREC para experimentación en Recuperación de Información. University of A Coruña, 2003.
David Parapar. Estudio del impacto en la Recuperación de Información de la expansión de consultas con WordNet. University of A Coruña, 2004.
Sergio Campos. Experimentos de eficiencia con el método de indexación de particionamiento de texto para grandes colecciones de documentos. University of A Coruña, 2004.
Javier Parapar. Sistema para la creación de resúmenes de prensa. University of A Coruña, 2006.
Alberto Sánchez Bardanca. Búsqueda en el web y clasificación de resultados. University of A Coruña, 2008.
Ismael Hasan. Sistema de indexación y búsqueda de información legislativa. University of A Coruña, 2008.
Omar Chakkor Estudio de la aplicabilidad de técnicas de clustering en un sistema de recuperación de noticias web. University of A Coruña, 2008.
Ana Freire Implementación y evaluación de nuevas técnicas de Recuperación de Información para texto degradado. University of A Coruña, 2008.
Rafael Romero Sistema de indexación y búsqueda de informacón comercial en la Web. University of A Coruña, 2009.
Jorge López Generación de resúmenes de texto guiados por comentarios. University of A Coruña, 2010.
María M. Vidal Sampedro Optimización mediante enjambres de partículas en problemas de fusión de resultados en recuperación de información. University of A Coruña, 2010.
Xosé Ramón de la Puente Romay Sistema de obtención e tratamento de texto a partires de imaxes, para dispositivos que empreguen o sistema operativo Android. University of A Coruña, 2010.
David Manteiga Sistema de búsqueda en entornos remotos para dispositivos móviles. University of A Coruña, 2010.
José C. Valencia Adaptación de una librería de indexación y búsqueda para su funcionamiento contra bancos de datos. University of A Coruña, 2011.
Javier Manteiga Generación y evaluación de snippets dependiente de consulta. University of A Coruña, 2011.
Lucía Rey Sistema de acceso a la información para dispositivos móviles mediante tecnologías de voz. University of A Coruña, 2011.
Santiago Berdullas Implementación y evaluación de algoritmos de clasificación de textos con explotación de propiedades lingüísticas. University of A Coruña, 2012.

Journals and Organizations