action learning clustering collaborative filtering collaborative systems community detection content-based recommendation context context-aware diversity evaluation finance graph search group recommendation household member identification hybrid recommendation implicit feedback information extraction information retrieval information retrieval models metasearch metrics multimedia retrieval news retrieval nlp novelty performance prediction personalization query expansion rank aggregation rank fusion recommender systems relation extraction semantic search semantics social networks time web search web service discovery web services xbrl
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.
|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.|
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.
|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.|