adversarial search clustering collaborative filtering collaborative systems community detection content-based recommendation context diversity evaluation evaluation methodologies finance graph search group recommendation hybrid recommendation implicit feedback information extraction information retrieval information retrieval models metasearch metrics multimedia retrieval news retrieval nlp novelty P2P performance prediction personalization rank aggregation rank fusion recommender sistems recommender systems relation extraction semantic search semantics social networks time user profile web search web service discovery web services
2013 |
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S. Vargas, P. Castells.
Exploiting the Diversity of User Preferences for Recommendation.
10th International Conference in the RIAO series (OAIR 2013). Lisbon, Portugal, May 2013. Slides |
| A. Bellogín, I. Cantador, P. Castells, F. Díez. Exploiting Social Networks in Recommendation: a Multi-Domain Comparison. 13th Dutch-Belgian Information Retrieval Workshop (DIR 2013). Delft, Netherlands, April 2013. |
| A. Bellogín, I. Cantador, P. Castells. A Comparative Study of Heterogeneous Item Recommendations in Social Systems. Information Sciences 221(1), February 2013, pp. 142-169. |
| A. Bellogín, I. Cantador, F. Díez, P. Castells, E. Chavarriaga. An Empirical Comparison of Social, Collaborative Filtering, and Hybrid Recommenders. ACM Transactions on Intelligent Systems and Technology 4(1), Special Issue on Context-Aware Movie Recommendations, February 2013. |
| A. Bellogín, J. Wang, P. Castells. Bridging Memory-Based Collaborative Filtering and Text Retrieval. Information Retrieval. In press, 2013. |
| P. G. Campos, F. Díez, I. Cantador. Time-Aware Recommender Systems: A Comprehensive Survey and Analysis of Existing Evaluation Protocols. User Modeling and User-Adapted Interaction, Special Issue on Context-Aware Recommender Systems. In Press, 2013. |
| J. Parapar, A. Bellogín, P. Castells, A. Barreiro. Relevance-Based Language Modelling for Recommender Systems. Information Processing & Management. In Press, 2013. |
2012 |
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A. Bellogín, J. Parapar.
Using Graph Partitioning Techniques for Neighbour Selection in User-Based Collaborative Filtering.
6th ACM Conference on Recommender Systems (RecSys 2012). Dublin, Ireland, September 2012. Poster |
| I. Cantador, P. Castells. Group Recommender Systems: New Perspectives in the Social Web. In J. J. Pazos Arias, A. Fernández Vilas, R. P. Díaz Redondo (Eds.): Recommender Systems for the Social Web. Springer Verlag, Intelligent Systems Reference Library, Vol. 32, 2012, ISBN: 978-3-642-25693-6. |
2011 |
| P. G. Campos, F. Díez, A. Bellogín. Temporal Rating Habits: A Valuable Tool for Rating Discrimination. 2nd Challenge on Context-Aware Movie Recommendation (CAMRa 2011), at the 5th ACM Conference on Recommender Systems (RecSys 2011). October 2011. |
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S. Vargas, P. Castells.
Rank and Relevance in Novelty and Diversity Metrics for Recommender Systems.
5th ACM Conference on Recommender Systems (RecSys 2011). Chicago, Illinois, October 2011, pp. 109-116. Slides |
| A. Bellogín, P. Castells, I. Cantador. Precision-Based Evaluation of Recommender Systems: An Algorithmic Comparison. 5th ACM Conference on Recommender Systems (RecSys 2011). Chicago, Illinois, October 2011. |
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P. G. Campos, F. Díez, M. Sánchez-Montañés.
Towards a More Realistic Evaluation: Testing the Ability to Predict Future Tastes of Matrix Factorization-based Recommenders.
5th ACM Conference on Recommender Systems (RecSys-2011). October 2011, pp. 309-312. Poster |
| A. Bellogín, J. Wang, P. Castells. Structured Collaborative Filtering. 20th ACM Conference on Information and Knowledge Management (CIKM 2011), Poster Session. Glasgow, UK, October 2011, pp. 2257-2260. |
| A. Bellogín, P. Castells, I. Cantador. Predicting the Performance of Recommender Systems: An Information Theoretic Approach. 3rd International Conference on the Theory of Information Retrieval (ICTIR 2011) - Springer Verlag Lecture Notes in Computer Science, Vol. 6931. Bertinoro, Italy, September 2011, ISBN: 978-3-642-23317-3, pp. 27-39. |
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S. Vargas, P. Castells, D. Vallet.
Intent-Oriented Diversity in Recommender Systems.
34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2011), Poster Session. Beijing, China, July 2011, pp. 1211-1212. Poster |
| A. Bellogín, P. Castells, I. Cantador. Self-adjusting Hybrid Recommenders Based on Social Network Analysis. 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2011), Poster Session. Beijing, China, July 2011, pp. 1147-1148. |
| I. Cantador, P. Castells. Extracting Multilayered Communities of Interest from Semantic User Profiles: Application to Group Modeling and Hybrid Recommendations. Computers in Human Behavior 27, special issue on Social and Humanistic Computing for the Knowledge Society, July 2011, pp. 1321-1336. |
| P. Castells, S. Vargas, J. Wang. Novelty and Diversity Metrics for Recommender Systems: Choice, Discovery and Relevance. International Workshop on Diversity in Document Retrieval (DDR 2011) at the 33rd European Conference on Information Retrieval (ECIR 2011). Dublin, Ireland, April 2011. |
| I. Cantador, P. Castells, A. Bellogín. An Enhanced Semantic Layer for Hybrid Recommender Systems: Application to News Recommendation. International Journal on Semantic Web and Information Systems 7(1), 2011, pp. 44-78. |
| A. Bellogín, I. Cantador, P. Castells, Á. Ortigosa. Discerning Relevant Model Features in a Content-based Collaborative Recommender System. In J. Fürnkranz, E. Hüllermeier (Eds.): Preference Learning. Springer Verlag, 2011, ISBN: 978-3-642-14124-9, pp. 429-456. |
2010 |
| P. G. Campos, A. Bellogín, F. Díez, and J. E. Chavarriaga. Simple Time-biased KNN-based Recommendations. Workshop on Context-Aware Movie Recommendation (CAMRa 2010), at the 4th ACM Conference on Recommender Systems (RecSys 2010). Barcelona, Spain, September 2010, pp. 20-23. |
| F. Díez, J. E. Chavarriaga, P. G. Campos, A. Bellogín. Movie Recommendations Based on Explicit and Implicit Features Extracted from the Filmtipset Dataset. Workshop on Context-Aware Movie Recommendation (CAMRa 2010), at the 4th ACM Conference on Recommender Systems (RecSys 2010). Barcelona, Spain, September 2010, pp. 42-52. |
| A. Bellogín, P. Castells. A Performance Prediction Approach to Enhance Collaborative Filtering Performance. 32nd European Conference on Information Retrieval (ECIR 2010), Springer Verlag Lecture Notes in Computer Science, Vol. 5993. Milton Keynes, UK, May 2010, ISBN: 978-3642122743, pp. 382-393. |
2009 |
| A. Bellogín, P. Castells. Predicting Neighbor Goodness in Collaborative Filtering. 8th International Conference on Flexible Query Answering Systems (FQAS 2009), Springer Verlag Lecture Notes in Computer Science, Vol. 5822. Roskilde, Denmark, October 2009, ISBN: 978-3-642-04956-9, pp. 605-616. |
| I. Cantador, P. Castells. Semantic Contextualisation in a News Recommender Systems. Workshop on Context-Aware Recommender Systems (CARS 2009) at the 3rd ACM Conference on Recommender Systems (RecSys 2009). New York, NY, USA, October 2009. |
2008 |
| I. Cantador, A. Bellogín,, P. Castells. Ontology-based Personalised and Context-aware Recommendations of News Items. IEEE/WIC/ACM International Conference on Web Intelligence (WI 2008). Sydney, Australia, December 2008. |
| A. Bellogín, I. Cantador, P. Castells, A. Ortigosa. Discovering Relevant Preferences in a Personalised Recommender System using Machine Learning Techniques. Preference Learning Workshop (PL 2008), at the 8th European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD 2008). Antwerp, Belgium, September 2008, pp. 82-96. |
| I. Cantador, A. Bellogín, P. Castells. News@hand: A Semantic Web Approach to Recommending News. 5th International Conference on Adaptative Hypermedia (AH 2008), Springer Verlag Lecture Notes in Computer Science, Vol. 5149. Hannover, Germany, July 2008, ISBN: 978-3-540-70984-8, pp. 279-283. |
| I. Cantador, M. Szomszor, H. Alani, M. Fernández, P. Castells. Enriching Ontological User Profiles with Tagging History for Multi-Domain Recommendations. 1st International Workshop on Collective Semantics: Collective Intelligence and the Semantic Web (CISWeb 2008), at the 5th European Semantic Web Conference (ESWC 2008). Tenerife, Spain, June 2008, pp. 5-19. |
| I. Cantador, A. Bellogín, P. Castells. A Multilayer Ontology-based Hybrid Recommendation Model. AI Communications 21(2-3), Special Issue on Recommender Systems, April 2008, pp. 203-210. |
2007 |
| I. Cantador, P. Castells, A. Bellogín. Modelling Ontology-based Multilayered Communities of Interest for Hybrid Recommendations. 1st Workshop on Adaptation and Personalization in Social Systems: Groups, Teams, Communities (SociUM 2007) at the 11th International Conference on User Modeling (UM 2007). Corfu, Greece, June 2007. |
| I. Cantador, M. Fernández, P. Castells. Improving Ontology Recommendation and Reuse in WebCORE by Collaborative Assessments. Workshop on Social and Collaborative Construction of Structured Knowledge at the 16th International World Wide Web Conference (WWW 2007). Banff, Canada, May 2007. |
2006 |
| I. Cantador, P. Castells. Multilayered Semantic Social Network Modeling by Ontology-Based User Profiles Clustering: Application to Collaborative Filtering. 15th International Conference on Knowledge Engineering and Knowledge Management (EKAW 2006). Springer Verlag Lecture Notes in Computer Science, Vol. 4248. Podebrady, Czech Republic, October 2006, ISSN: 3-540-46363-1, pp. 334-349. |
| I. Cantador, M. Fernández, P. Castells. A Collaborative Recommendation Framework for Ontology Evaluation and Reuse. International Workshop on Recommender Systems at the 17th European Conference on Artificial Intelligence (ECAI 2006). Riva del Garda, Italy, August 2006. |
| I. Cantador, P. Castells, D. Vallet. Enriching Group Profiles with Ontologies for Knowledge-Driven Collaborative Content Retrieval. 1st Int. Workshop on Semantic Technologies in Collaborative Applications (STICA 2006), at the 15th IEEE Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises (WETICE 2006). Manchester, UK, June 2006. |
| I. Cantador, P. Castells. Multilayered Ontology-Based User Profiles and Semantic Social Networks for Recommender Systems. 2nd Int. Workshop on Web Personalisation, Recommender Systems and Intelligent User Interfaces (WPRSIUI 2006) at the 4th Int. Conf. on Adaptive Hypermedia and Adaptive Web-Based Systems (AH 2006). Dublin, Ireland, June 2006. |