Publications

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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.

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

P. G. Campos, I. Fernández-Tobías, I. Cantador, F. Díez. Context-Aware Movie Recommendations: An Empirical Comparison of Pre-Filtering, Post-Filtering and Contextual Modeling Approaches. 14th International Conference on Electronic Commerce and Web Technologies (EC-Web 2013). August 2013, pp. 137-149.

(BibTeX | Tags: recommender systems, collaborative filtering, context, time)

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)

P. G. Campos, I. Cantador, F. Díez. Exploiting Time Contexts in Collaborative Filtering: An Item Splitting Approach. 3rd workshop on Context-Awareness in Retrieval and Recommendation (CaRR 2013), at the 6th ACM International Conference on Web Search and Data Mining (WSDM 2013). February 2013, pp. 3-6.

(BibTeX | Tags: recommender systems, collaborative filtering, context, time)

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

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, 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, 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)

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

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)

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.

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

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.

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

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.

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

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.

(BibTeX | Tags: recommender systems, collaborative filtering, information retrieval, semantics, group recommendation)

M. Fernández I. Cantador, P. Castells. CORE: A Tool for Collaborative Ontology Reuse and Evaluation. 4th International Workshop on Evaluation of Ontologies for the Web (EON 2006) at the 15th International World Wide Web Conference (WWW 2006). Edinburgh, UK, May 2006.

(BibTeX | Tags: collaborative filtering, semantics, collaborative systems)

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