Publications

adversarial search  bias  collaborative filtering  collaborative systems  contact recommendation  context  diversity  evaluation  feature selection  finance  group recommendation  hybrid recommendation  information extraction  information retrieval  information retrieval models  information retrieval theory  knn  link prediction  metasearch  metrics  multi-armed bandits  multimedia retrieval  news retrieval  nlp  non-random missing data  novelty  performance prediction  personalization  popularity  rank aggregation  rank fusion  recommender systems  relation extraction  semantic search  semantics  social networks  speech recognition  time  web search  web services 

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2019

J. Sanz-Cruzado, P. Castells. Beyond Accuracy in Link Prediction. 3rd Workshop on Social Media for Personalization And Search (SoMePeAS 2019) at the 41st European Conference on Information Retrieval (ECIR 2019). Cologne, Germany, April 2019.

(BibTeX | Tags: novelty, diversity, recommender systems, evaluation, social networks, link prediction, contact recommendation)
J. Sanz-Cruzado, P. Castells. Information Retrieval Models for Contact Recommendation in Social Networks. 41st European Conference on Information Retrieval (ECIR 2019). Cologne, Germany, April 2019, pp. 148-163.
Slides

(BibTeX | Tags: recommender systems, information retrieval models, social networks, information retrieval, contact recommendation)

2018

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, November 2018, ISBN: 978-981-3275-35-5, pp. 519-569.

(BibTeX | Tags: recommender systems, evaluation, social networks, link prediction, contact recommendation)
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, pp. 233-241.
Slides | Poster

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

2014

R. Cañamares, P. Castells. Exploring social network effects on popularity biases in recommender systems. 6th Workshop on Recommender Systems and the Social Web (RSWeb 2014) at the 8th ACM Conference on Recommender Systems (RecSys 2014). Foster City, CA, USA, October 2014.

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

2013

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, 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)
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)

2011

A. de Salabert, F. Díez, R. Cobos, M. Alfonseca. An interactive platform for AI Games. Research in Engineering Education Symposium (REES 2011). October 2011, pp. 736-744.

(BibTeX | Tags: social networks, adversarial search, artificial intelligence, action learning, P2P, e-Learning)
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)

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, P. Castells. Building Emergent Social Networks and Group Profiles by Semantic User Preference Clustering. International Workshop on Semantic Network Analysis (SNA 2006) at the 3rd European Semantic Web Conference (ESWC 2006). Budva, Montenegro, June 2006.

(BibTeX | Tags: social networks, semantics, group recommendation)
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.

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

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