IR
Anthology
Community
Alejandro
Bellogín
2026
doi
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SynIRgy: Synthetic Data and Simulation Synergy for Information Retrieval.
Manel Slokom
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Alejandro Bellogín
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Mayank Singh
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Andrea Barraza-Urbina
Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part III
2025
doi
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Smart Imputation, Better Recommendations: Improving Traditional Point-of-Interest Recommendation through Data Augmentation.
Pablo Sánchez
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Alejandro Bellogín
ACM Transactions on Intelligent Systems and Technology (TIST) 2025 Volume 16 Issue 4
doi
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The role of recommendation algorithms in the formation of disinformation networks.
Pau Muñoz
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Raúl Barba-Rojas
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Fernando Díez
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Alejandro Bellogín
Information Processing and Management 2025 Volume 62 Issue 6
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The Impact of Mainstream-Driven Algorithms on Recommendations for Children.
Robin Ungruh
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Alejandro Bellogín
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Maria Soledad Pera
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part III
doi
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Improving Novelty and Diversity of Nearest-Neighbors Recommendation by Exploiting Dissimilarities.
Pablo Sánchez
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Javier Sanz-Cruzado
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Alejandro Bellogín
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part IV
doi
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International Workshop on Algorithmic Bias in Search and Recommendation (BIAS 2025).
Alejandro Bellogín
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Ludovico Boratto
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Styliani Kleanthous
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Elisabeth Lex
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Francesca Maridina Malloci
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Mirko Marras
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025
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From Monolith to Mosaic: Uncovering Behavioral Differences for Choice Models in Recommender Systems Simulations.
Robin Ungruh
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Alejandro Bellogín
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Maria Soledad Pera
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025
2024
doi
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Report on the 5th International Workshop on Algorithmic Bias in Search and Recommendation (BIAS 2024) at SIGIR 2024.
Alejandro Bellogín
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Ludovico Boratto
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Styliani Kleanthous
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Elisabeth Lex
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Francesca Maridina Malloci
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Mirko Marras
SIGIR Forum 2024 Volume 58 Issue 2
doi
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Recommendation Fairness in eParticipation: Listening to Minority, Vulnerable and NIMBY Citizens.
Marina Alonso-Cortés
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Iván Cantador
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Alejandro Bellogín
Advances in Information Retrieval - 46th European Conference on Information Retrieval, ECIR 2024, Glasgow, UK, March 24-28, 2024, Proceedings, Part IV
doi
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International Workshop on Algorithmic Bias in Search and Recommendation (BIAS).
Alejandro Bellogín
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Ludovico Boratto
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Styliani Kleanthous
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Elisabeth Lex
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Francesca Maridina Malloci
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Mirko Marras
Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2024, Washington DC, USA, July 14-18, 2024
2023
doi
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A unifying and general account of fairness measurement in recommender systems.
Enrique Amigó
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Yashar Deldjoo
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Stefano Mizzaro
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Alejandro Bellogín
Information Processing and Management 2023 Volume 60 Issue 1
2021
doi
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Explaining recommender systems fairness and accuracy through the lens of data characteristics.
Yashar Deldjoo
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Alejandro Bellogín
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Tommaso Di Noia
Information Processing and Management 2021 Volume 58 Issue 5
doi
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On the effects of aggregation strategies for different groups of users in venue recommendation.
Pablo Sánchez
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Alejandro Bellogín
Information Processing and Management 2021 Volume 58 Issue 5
doi
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Elliot: A Comprehensive and Rigorous Framework for Reproducible Recommender Systems Evaluation.
Vito Walter Anelli
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Alejandro Bellogín
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Antonio Ferrara
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Daniele Malitesta
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Felice Antonio Merra
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Claudio Pomo
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Francesco Maria Donini
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Tommaso Di Noia
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021
2020
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Time and sequence awareness in similarity metrics for recommendation.
Pablo Sánchez
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Alejandro Bellogín
Information Processing and Management 2020 Volume 57 Issue 3
doi
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Assessing ranking metrics in top-N recommendation.
Daniel Valcarce
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Alejandro Bellogín
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Javier Parapar
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Pablo Castells
Discover Computing 2020 Volume 23 Issue 4
2019
doi
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Building user profiles based on sequences for content and collaborative filtering.
Pablo Sánchez
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Alejandro Bellogín
Information Processing and Management 2019 Volume 56 Issue 1
2018
doi
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Applying Subsequence Matching to Collaborative Filtering: Extended Abstract.
Alejandro Bellogín
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Pablo Sánchez
Proceedings of the 5th Spanish Conference on Information Retrieval, CERI 2018, Zaragoza, Spain, June 26-27, 2018
doi
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New approaches for evaluation: correctness and freshness: Extended Abstract.
Pablo Sánchez
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Rus M. Mesas
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Alejandro Bellogín
Proceedings of the 5th Spanish Conference on Information Retrieval, CERI 2018, Zaragoza, Spain, June 26-27, 2018
doi
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Time-Aware Novelty Metrics for Recommender Systems.
Pablo Sánchez
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Alejandro Bellogín
Advances in Information Retrieval - 40th European Conference on IR Research, ECIR 2018, Grenoble, France, March 26-29, 2018, Proceedings
2017
doi
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Statistical biases in Information Retrieval metrics for recommender systems.
Alejandro Bellogín
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Pablo Castells
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Iván Cantador
Discover Computing 2017 Volume 20 Issue 6
2016
doi
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The strange case of reproducibility versus representativeness in contextual suggestion test collections.
Thaer Samar
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Alejandro Bellogín
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Arjen P. de Vries
Discover Computing 2016 Volume 19 Issue 3
doi
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A Framework for Dataset Benchmarking and Its Application to a New Movie Rating Dataset.
Simon Dooms
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Alejandro Bellogín
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Toon De Pessemier
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Luc Martens
ACM Transactions on Intelligent Systems and Technology (TIST) 2016 Volume 7 Issue 3
doi
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Studying the Effect of Data Structures on the Efficiency of Collaborative Filtering Systems.
Pablo Sánchez
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Alejandro Bellogín
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Iván Cantador
Proceedings of the 4th Spanish Conference on Information Retrieval, Granada, Spain, June 14-16, 2016
2014
doi
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Report on the workshop on reproducibility and replication in recommender systems evaluation (RepSys).
Alejandro Bellogín
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Pablo Castells
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Alan Said
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Domonkos Tikk
SIGIR Forum 2014 Volume 48 Issue 1
doi
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Neighbor Selection and Weighting in User-Based Collaborative Filtering: A Performance Prediction Approach.
Alejandro Bellogín
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Pablo Castells
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Iván Cantador
ACM Transactions on the Web 2014 Volume 8 Issue 2
doi
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Challenges on Combining Open Web and Dataset Evaluation Results: The Case of the Contextual Suggestion Track.
Alejandro Bellogín
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Thaer Samar
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Arjen P. de Vries
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Alan Said
Advances in Information Retrieval - 36th European Conference on IR Research, ECIR 2014, Amsterdam, The Netherlands, April 13-16, 2014. Proceedings
doi
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Effects of Position Bias on Click-Based Recommender Evaluation.
Katja Hofmann
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Anne Schuth
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Alejandro Bellogín
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Maarten de Rijke
Advances in Information Retrieval - 36th European Conference on IR Research, ECIR 2014, Amsterdam, The Netherlands, April 13-16, 2014. Proceedings
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Better Contextual Suggestions in ClueWeb12 Using Domain Knowledge Inferred from The Open Web.
Thaer Samar
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Arjen P. de Vries
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Alejandro Bellogín
Proceedings of The Twenty-Third Text REtrieval Conference, TREC 2014, Gaithersburg, Maryland, USA, November 19-21, 2014
2013
doi
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An empirical comparison of social, collaborative filtering, and hybrid recommenders.
Alejandro Bellogín
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Iván Cantador
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Fernando Díez
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Pablo Castells
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Enrique Chavarriaga
ACM Transactions on Intelligent Systems and Technology (TIST) 2013 Volume 4 Issue 1
doi
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Relevance-based language modelling for recommender systems.
Javier Parapar
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Alejandro Bellogín
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Pablo Castells
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Alvaro Barreiro
Information Processing and Management 2013 Volume 49 Issue 4
doi
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Bridging memory-based collaborative filtering and text retrieval.
Alejandro Bellogín
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Jun Wang
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Pablo Castells
Discover Computing 2013 Volume 16 Issue 6
doi
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A month in the life of a production news recommender system.
Alan Said
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Xiaoyan Zhu
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Arjen P. de Vries
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Xuyun Zhang
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Jimmy Lin
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Alan Said
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Xiaoyan Zhu
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Alejandro Bellogín
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Xuyun Zhang
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Arjen P. de Vries
Proceedings of the 2013 workshop on Living labs for information retrieval evaluation, LivingLab@CIKM 2013, San Francisco, California, USA, November 1, 2013
doi
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Understanding Similarity Metrics in Neighbour-based Recommender Systems.
Alejandro Bellogín
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Arjen P. de Vries
International Conference on the Theory of Information Retrieval, ICTIR '13, Copenhagen, Denmark, September 29 - October 02, 2013
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Improving memory-based collaborative filtering by neighbour selection based on user preference overlap.
Alejandro Bellogín
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Pablo Castells
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Iván Cantador
Open research Areas in Information Retrieval, OAIR 2013, Lisbon, Portugal, May 15-17, 2013
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CWI and TU Delft Notebook TREC 2013: Contextual Suggestion, Federated Web Search, KBA, and Web Tracks.
Alejandro Bellogín
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Gebrekirstos G. Gebremeskel
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Jiyin He
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Alan Said
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Thaer Samar
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Arjen P. de Vries
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Jimmy Lin
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Jeroen B. P. Vuurens
Proceedings of The Twenty-Second Text REtrieval Conference, TREC 2013, Gaithersburg, Maryland, USA, November 19-22, 2013
2012
doi
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Time feature selection for identifying active household members.
Pedro G. Campos
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Alejandro Bellogín
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Fernando Díez
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Iván Cantador
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012
2011
doi
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Structured collaborative filtering.
Alejandro Bellogín
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Jun Wang
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Pablo Castells
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011
doi
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Text Retrieval Methods for Item Ranking in Collaborative Filtering.
Alejandro Bellogín
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Jun Wang
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Pablo Castells
Advances in Information Retrieval - 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings
doi
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Predicting the Performance of Recommender Systems: An Information Theoretic Approach.
Alejandro Bellogín
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Pablo Castells
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Iván Cantador
Advances in Information Retrieval Theory - Third International Conference, ICTIR 2011, Bertinoro, Italy, September 12-14, 2011. Proceedings
doi
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Self-adjusting hybrid recommenders based on social network analysis.
Alejandro Bellogín
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Pablo Castells
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Iván Cantador
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011
2010
doi
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A Performance Prediction Approach to Enhance Collaborative Filtering Performance.
Alejandro Bellogín
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Pablo Castells
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings