Publications

2013
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) @inproceedings{campos_ec-web2013, author = {P. G. Campos, I. Fernández-Tobías, I. Cantador, F. Díez}, title = {Context-Aware Movie Recommendations: An Empirical Comparison of Pre-Filtering, Post-Filtering and Contextual Modeling Approaches}, url = {http://ir.ii.uam.es/~pedro/pubs/ec-web2013_campos.pdf}, month = {August}, year = {2013}, booktitle = {14th International Conference on Electronic Commerce and Web Technologies (EC-Web 2013)}, pages = {137-149}, } close
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) @inproceedings{campos_carr2013, author = {P. G. Campos, I. Cantador, F. Díez}, title = {Exploiting Time Contexts in Collaborative Filtering: An Item Splitting Approach}, url = {http://ir.ii.uam.es/~pedro/pubs/carr2013_campos.pdf}, month = {February}, year = {2013}, booktitle = {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)}, pages = {3-6}, } close
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) @inproceedings{cikm2012-campos, author = {P. G. Campos, A. Bellogín, F. Díez, I. Cantador}, title = {Time Feature Selection for Identifying Active Household Members}, url = {http://ir.ii.uam.es/~pedro/publications/cikm2012_campos.pdf}, month = {October}, year = {2012}, booktitle = {21st ACM International Conference on Information and Knowledge Management (CIKM 2012)}, pages = {2311-2314}, address = {Maui, Hawaii, USA}, abstract = {Popular online rental services such as Netflix and MoviePilot often manage household accounts. A household account is usually shared by various users who live in the same house, but in general does not provide a mechanism by which current active users are identified, and thus leads to considerable difficulties for making effective personalized recommendations. The identification of the active household members, defined as the discrimination of the users from a given household who are interacting with a system (e.g. an on-demand video service), is thus an interesting challenge for the recommender systems research community. In this paper, we formulate the above task as a classification problem, and address it by means of global and local feature selection methods and classifiers that only exploit time features from past item consumption records. The results obtained from a series of experiments on a real dataset show that some of the proposed methods are able to select relevant time features, which allow simple classifiers to accurately identify active members of household accounts.}, } close
2011
P. G. Campos, F. Díez, A. Bellogín. Temporal Rating Habits: A Valuable Tool for Rating Discrimination. 2nd Challenge on Context-Aware Movie Recommendation (CAMRa 2011), at the 5th ACM Conference on Recommender Systems (RecSys 2011). October 2011. (BibTeX \| Tags: recommender systems, context, time) @inproceedings{camra2011-campos, author = {P. G. Campos and F. Díez and A. Bellogín}, title = {Temporal Rating Habits: A Valuable Tool for Rating Discrimination}, month = {October}, year = {2011}, booktitle = {2nd Challenge on Context-Aware Movie Recommendation (CAMRa 2011), at the 5th ACM Conference on Recommender Systems (RecSys 2011)}, } close
P. G. Campos, F. Díez, M. Sánchez-Montañés. Towards a More Realistic Evaluation: Testing the Ability to Predict Future Tastes of Matrix Factorization-based Recommenders. 5th ACM Conference on Recommender Systems (RecSys-2011). October 2011, pp. 309-312. Poster (BibTeX \| Tags: recommender systems, evaluation, time) @inproceedings{recsys2011-campos, author = {P. G. Campos and F. Díez and M. Sánchez-Montañés}, title = {Towards a More Realistic Evaluation: Testing the Ability to Predict Future Tastes of Matrix Factorization-based Recommenders}, url = {http://ir.ii.uam.es/~pedro/publications/recsys11_campos.pdf}, month = {October}, year = {2011}, booktitle = {5th ACM Conference on Recommender Systems (RecSys-2011)}, pages = {309-312}, } close
2010
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) @inproceedings{camra2010-campos, author = {P. G. Campos and A. Bellogín and F. Díez and and J. E. Chavarriaga}, title = {Simple Time-biased KNN-based Recommendations}, url = {http://ir.ii.uam.es/rim3/publications/camra10-campos.pdf}, month = {September}, year = {2010}, booktitle = {Workshop on Context-Aware Movie Recommendation (CAMRa 2010), at the 4th ACM Conference on Recommender Systems (RecSys 2010)}, pages = {20-23}, address = {Barcelona, Spain}, } close

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