Publications

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2018

J. Sanz-Cruzado, P. Castells. Enhancing Structural Diversity in Social Networks by Recommending Weak Ties. 12th ACM Conference on Recommender Systems (RecSys 2018). Vancouver, Canada, October 2018.

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

R. Cañamares, P. Castells. From the PRP to the Low Prior Discovery Recall Principle for Recommender Systems. 41st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2018). Ann Arbor, Michigan, USA. July 2018, pp. 1081-1084.
Poster

(BibTeX | Tags: novelty, recommender systems, metrics, evaluation, information retrieval, popularity, information retrieval theory)

J. Sanz-Cruzado, S. M. Pepa, P. Castells. Structural Novelty and Diversity in Link Prediction. 9th International Workshop on Modeling Social Media (MSM 2018) at The Web Conference (TheWebConf 2018). Lyon, France, April 2018.

(BibTeX | Tags: novelty, diversity, recommender systems, evaluation, social networks, link prediction)

P. Sánchez, A. Bellogín. Time-Aware Novelty Metrics for Recommender Systems. 40th European Conference on Information Retrieval (ECIR 2018). Grenoble, France, Springer, March 2018, ISBN: 978-3-319-76941-7, pp. 357-370.

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

J. Sanz-Cruzado, P. Castells. Contact Recommendations in Social Networks. In S. Berkovsky, I. Cantador, D. Tikk (Eds.): Collaborative Recommendations: Algorithms, Practical Challenges and Applications. World Scientific Publishing, 2018.

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

2015

P. Castells, N. J. Hurley, S. Vargas. Novelty and Diversity in Recommender Systems. In Francesco Ricci, Lior Rokach, Bracha Shapira (Eds.): Recommender Systems Handbook, 2nd edition. Springer, 2015, ISBN: 978-1-4899-7637-6, pp. 881-918.

(BibTeX | Tags: novelty, diversity, recommender systems, evaluation, information retrieval)

2014

S. Vargas, P. Castells. Improving Sales Diversity By Recommending Users to Items. 8th ACM Conference on Recommender Systems (RecSys 2014). Foster City, CA, USA, October 2014, pp. 145-152.
Slides | Poster

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

S. Vargas, L. Baltrunas, A. Karatzoglou, P. Castells. Coverage, Redundancy and Size-Awareness in Genre Diversity for Recommender Systems. 8th ACM Conference on Recommender Systems (RecSys 2014). Foster City, CA, USA, October 2014, pp. 209-216.
Slides | Poster

(BibTeX | Tags: novelty, diversity, recommender systems, evaluation)

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.

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

2011

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

(BibTeX | Tags: novelty, diversity, recommender systems, metrics, evaluation)

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.

(BibTeX | Tags: novelty, diversity, recommender systems, metrics, evaluation, information retrieval)

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