Publications

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2017

A. Bellogín, P. Castells, I. Cantador. Statistical Biases in Information Retrieval Metrics for Recommender Systems. Information Retrieval 20(6), July 2017, pp. 606-634.

(BibTeX | Tags: recommender systems, evaluation, popularity)

2014

A. Bellogín, P. Castells, I. Cantador. Neighbor Selection and Weighting in User-Based Collaborative Filtering: A Performance Prediction Approach. ACM Transactions on the Web 8(2), March 2014.

(BibTeX | Tags: recommender systems, collaborative filtering, performance prediction, information retrieval)

2013

A. Bellogín, J. Wang, P. Castells. Bridging Memory-Based Collaborative Filtering and Text Retrieval. Information Retrieval 16(6), December 2013, pp. 697-724.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

A. Bellogín, J. Parapar, P. Castells. Probabilistic Collaborative Filtering with Negative Cross Entropy. 7th ACM Conference on Recommender Systems (RecSys 2013). Hong Kong, China, October 2013, pp. 387-390.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

J. Parapar, A. Bellogín, P. Castells, A. Barreiro. Relevance-Based Language Modelling for Recommender Systems. Information Processing & Management 49(4), July 2013.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

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.

(BibTeX | Tags: recommender systems, evaluation, collaborative filtering, social networks, context)

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.

(BibTeX | Tags: recommender systems, social networks, hybrid recommendation)

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.

(BibTeX | Tags: novelty, diversity, recommender systems, evaluation, collaborative filtering, social networks)

2012

P. G. Campos, A. Bellogín, F. Díez, I. Cantador. Time Feature Selection for Identifying Active Household Members. 21st ACM International Conference on Information and Knowledge Management (CIKM 2012). Maui, Hawaii, USA, October 2012, pp. 2311-2314.

(BibTeX | Tags: context, time, household member identification, time features, feature selection, recommender sistems)

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

(BibTeX | Tags: recommender systems, collaborative filtering, clustering)

2011

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, pp. 333-336.

(BibTeX | Tags: recommender systems, metrics, evaluation, experimental methodology)

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.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval models, information retrieval)

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.

(BibTeX | Tags: recommender systems, performance prediction, information retrieval)

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.

(BibTeX | Tags: recommender systems, performance prediction, social networks, hybrid recommendation)

A. Bellogín, J. Wang, P. Castells. Text Retrieval Methods for Item Ranking in Collaborative Filtering. 33rd European Conference on Information Retrieval (ECIR 2011), Springer Verlag Lecture Notes in Computer Science. Dublin, Ireland, April 2011, ISBN: 978-3642201608, pp. 301-306.

(BibTeX | Tags: collaborative filtering, information retrieval models, information retrieval)

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.

(BibTeX | Tags: recommender systems, hybrid recommendation, semantics, news retrieval)

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.

(BibTeX | Tags: recommender systems, collaborative filtering, content-based recommendation)

2010

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.

(BibTeX | Tags: recommender systems, context)

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.

(BibTeX | Tags: recommender systems, time)

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.

(BibTeX | Tags: recommender systems, collaborative filtering, performance prediction)

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.

(BibTeX | Tags: recommender systems, collaborative filtering, performance prediction)

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.

(BibTeX | Tags: recommender systems, context, semantics, news retrieval)

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.

(BibTeX | Tags: recommender systems, machine learning)

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.

(BibTeX | Tags: recommender systems, semantics, news retrieval)

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.

(BibTeX | Tags: recommender systems, hybrid recommendation, semantics)

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.

(BibTeX | Tags: recommender systems, hybrid recommendation, semantics)

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