Publications

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) @inproceedings{dir2013, author = {A. Bellogín and I. Cantador and P. Castells and F. Díez}, title = {Exploiting Social Networks in Recommendation: a Multi-Domain Comparison}, url = {http://ir.ii.uam.es/pubs/dir13.pdf}, month = {April}, year = {2013}, booktitle = {13th Dutch-Belgian Information Retrieval Workshop (DIR 2013)}, address = {Delft, Netherlands}, } 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
2010
F. Díez, J. E. Chavarriaga, P. G. Campos, A. Bellogín. Movie Recommendations Based on Explicit and Implicit Features Extracted from the Filmtipset Dataset. Workshop on Context-Aware Movie Recommendation (CAMRa 2010), at the 4th ACM Conference on Recommender Systems (RecSys 2010). Barcelona, Spain, September 2010, pp. 42-52. (BibTeX \| Tags: recommender systems, context) @inproceedings{camra2010-diez, author = {F. Díez and J. E. Chavarriaga and P. G. Campos and A. Bellogín}, title = {Movie Recommendations Based on Explicit and Implicit Features Extracted from the Filmtipset Dataset}, url = {http://ir.ii.uam.es/rim3/publications/camra10-diez.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 = {42-52}, address = {Barcelona, Spain}, } close
2009
I. Cantador, P. Castells. Semantic Contextualisation in a News Recommender Systems. Workshop on Context-Aware Recommender Systems (CARS 2009) at the 3rd ACM Conference on Recommender Systems (RecSys 2009). New York, NY, USA, October 2009. (BibTeX \| Tags: recommender systems, context, news retrieval) @inproceedings{cars2009, author = {I. Cantador and P. Castells}, title = {Semantic Contextualisation in a News Recommender Systems}, url = {http://ir.ii.uam.es/rim3/publications/cars09.pdf}, month = {October}, year = {2009}, booktitle = {Workshop on Context-Aware Recommender Systems (CARS 2009) at the 3rd ACM Conference on Recommender Systems (RecSys 2009)}, address = {New York, NY, USA}, } close
2008
I. Cantador, A. Bellogín,, P. Castells. Ontology-based Personalised and Context-aware Recommendations of News Items. IEEE/WIC/ACM International Conference on Web Intelligence (WI 2008). Sydney, Australia, December 2008. (BibTeX \| Tags: recommender systems, context, semantics, news retrieval) @inproceedings{wi2008, author = {I. Cantador and A. Bellogín, and P. Castells}, title = {Ontology-based Personalised and Context-aware Recommendations of News Items}, url = {http://ir.ii.uam.es/pubs/wi08.pdf}, month = {December}, year = {2008}, booktitle = {IEEE/WIC/ACM International Conference on Web Intelligence (WI 2008)}, address = {Sydney, Australia}, } close
Ph. Mylonas, D. Vallet, P. Castells, M. Fernández, and Y. Avrithis. Personalized information retrieval based on context and ontological knowledge. Knowledge Engineering Review 23(1), special issue on Contexts and Ontologies, March 2008, pp. 73-100. (BibTeX \| Tags: personalization, context, information retrieval, semantics) @article{ker2008, author = {Ph. Mylonas and D. Vallet and P. Castells and M. Fernández and and Y. Avrithis}, title = {Personalized information retrieval based on context and ontological knowledge}, url = {http://ir.ii.uam.es/~acemedia/publications/ker-co08.pdf}, month = {03}, year = {2008}, journal = {Knowledge Engineering Review 23(1), special issue on Contexts and Ontologies}, pages = {73-100}, } close
2007
D. Vallet, P. Castells, M. Fernández, P. Mylonas, Y. Avrithis. Personalized Content Retrieval in Context Using Ontological Knowledge. IEEE Transactions on Circuits and Systems for Video Technology 17(3), special issue on the convergence of knowledge engineering, semantics and signal processing in audiovisual information retrieval, March 2007, pp. 336-346. (BibTeX \| Tags: personalization, context, information retrieval, semantics) @article{tcsvt2007, author = {D. Vallet and P. Castells and M. Fernández and P. Mylonas and Y. Avrithis}, title = {Personalized Content Retrieval in Context Using Ontological Knowledge}, url = {http://ir.ii.uam.es/~acemedia/publications/tcsvt-sicvir07.pdf}, month = {03}, year = {2007}, journal = {IEEE Transactions on Circuits and Systems for Video Technology 17(3), special issue on the convergence of knowledge engineering, semantics and signal processing in audiovisual information retrieval}, pages = {336-346}, } close
2006
D. Vallet, M. Fernández, P. Castells, P. Mylonas, Y. Avrithis. A contextual personalization approach based on ontological knowledge. International Workshop on Context and Ontologies: Theory, Practice and Applications (C&O 2006) at the 17th European Conference on Artificial Intelligence (ECAI 2006). Riva del Garda, Italy, August 2006. (BibTeX \| Tags: personalization, context, information retrieval, semantics) @inproceedings{co2006, author = {D. Vallet and M. Fernández and P. Castells and P. Mylonas and Y. Avrithis}, title = {A contextual personalization approach based on ontological knowledge}, url = {http://ir.ii.uam.es/~acemedia/publications/co-ecai06.pdf}, month = {August}, year = {2006}, booktitle = {International Workshop on Context and Ontologies: Theory, Practice and Applications (C&O 2006) at the 17th European Conference on Artificial Intelligence (ECAI 2006)}, address = {Riva del Garda, Italy}, } close
D. Vallet, M. Fernández, P. Castells, P. Mylonas, Y. Avrithis. Personalized Information Retrieval in Context. 3rd International Workshop on Modeling and Retrieval of Context (MRC 2006) at the 21st National Conference on Artificial Intelligence (AAAI 2006). Boston, MA, USA, July 2006. (BibTeX \| Tags: personalization, context, information retrieval, semantics) @inproceedings{mrc2006, author = {D. Vallet and M. Fernández and P. Castells and P. Mylonas and Y. Avrithis }, title = {Personalized Information Retrieval in Context}, url = {http://ir.ii.uam.es/~acemedia/publications/mrc06.pdf}, month = {July}, year = {2006}, booktitle = {3rd International Workshop on Modeling and Retrieval of Context (MRC 2006) at the 21st National Conference on Artificial Intelligence (AAAI 2006)}, address = {Boston, MA, USA}, } close

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