Alejandro Bellogín


2010

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A Performance Prediction Approach to Enhance Collaborative Filtering Performance
Alejandro Bellogín | Pablo Castells
Advances in Information Retrieval, 32nd European Conference on IR Research, ECIR 2010, Milton Keynes, UK, March 28-31, 2010. Proceedings

2011

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Structured collaborative filtering
Alejandro Bellogín | Jun Wang | Pablo Castells
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011

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Text Retrieval Methods for Item Ranking in Collaborative Filtering
Alejandro Bellogín | Jun Wang | Pablo Castells
Advances in Information Retrieval - 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings

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Predicting the Performance of Recommender Systems: An Information Theoretic Approach
Alejandro Bellogín | Pablo Castells | Iván Cantador
Advances in Information Retrieval Theory - Third International Conference, ICTIR 2011, Bertinoro, Italy, September 12-14, 2011. Proceedings

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Self-adjusting hybrid recommenders based on social network analysis
Alejandro Bellogín | Pablo Castells | 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

2012

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Time feature selection for identifying active household members
Pedro G. Campos | Alejandro Bellogín | Fernando Díez | Iván Cantador
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

2013

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Understanding Similarity Metrics in Neighbour-based Recommender Systems
Alejandro Bellogín | 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 | Pablo Castells | 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 | Gebrekirstos G. Gebremeskel | Jiyin He | Alan Said | Thaer Samar | Arjen P. de Vries | Jimmy Lin | Jeroen B. P. Vuurens
Proceedings of The Twenty-Second Text REtrieval Conference, TREC 2013, Gaithersburg, Maryland, USA, November 19-22, 2013

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A month in the life of a production news recommender system
Alan Said | Jimmy Lin | Alejandro Bellogín | 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

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Exploiting Social Networks in Recommendation: a Multi-Domain Comparison
Alejandro Bellogín | Iván Cantador | Pablo Castells | Fernando Díez
Proceedings of the 13th Dutch-Belgian Workshop on Information Retrieval, Delft, The Netherlands, April 26th, 2013

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Relevance-based language modelling for recommender systems
Javier Parapar | Alejandro Bellogín | Pablo Castells | Alvaro Barreiro
2013 Volume 49 Issue 4

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Bridging memory-based collaborative filtering and text retrieval
Alejandro Bellogín | Jun Wang | Pablo Castells
2013 Volume 16 Issue 6

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An empirical comparison of social, collaborative filtering, and hybrid recommenders
Alejandro Bellogín | Iván Cantador | Fernando Díez | Pablo Castells | Enrique Chavarriaga
2013 Volume 4 Issue 1

2014

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Challenges on Combining Open Web and Dataset Evaluation Results: The Case of the Contextual Suggestion Track
Alejandro Bellogín | Thaer Samar | Arjen P. de Vries | Alan Said
Advances in Information Retrieval - 36th European Conference on IR Research, ECIR 2014, Amsterdam, The Netherlands, April 13-16, 2014. Proceedings

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Effects of Position Bias on Click-Based Recommender Evaluation
Katja Hofmann | Anne Schuth | Alejandro Bellogín | 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 | Arjen P. de Vries | Alejandro Bellogín
Proceedings of The Twenty-Third Text REtrieval Conference, TREC 2014, Gaithersburg, Maryland, USA, November 19-21, 2014

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Report on the workshop on reproducibility and replication in recommender systems evaluation (RepSys)
Alejandro Bellogín | Pablo Castells | Alan Said | Domonkos Tikk
2014 Volume 48 Issue 1

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Neighbor Selection and Weighting in User-Based Collaborative Filtering: A Performance Prediction Approach
Alejandro Bellogín | Pablo Castells | Iván Cantador
2014 Volume 8 Issue 2

2015

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Improving Contextual Suggestions using Open Web Domain Knowledge
Thaer Samar | Alejandro Bellogín | Arjen P. de Vries
Proceedings of the International Workshop on Social Personalisation & Search, SPS 2015, co-located with the 38th Annual ACM SIGIR Conference (SIGIR 2015), Santiago de Chile, Chile, August 9-13, 2015

2016

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Studying the Effect of Data Structures on the Efficiency of Collaborative Filtering Systems
Pablo Sánchez | Alejandro Bellogín | Iván Cantador
Proceedings of the 4th Spanish Conference on Information Retrieval, Granada, Spain, June 14-16, 2016

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The strange case of reproducibility versus representativeness in contextual suggestion test collections
Thaer Samar | Alejandro Bellogín | Arjen P. de Vries
2016 Volume 19 Issue 3

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A Framework for Dataset Benchmarking and Its Application to a New Movie Rating Dataset
Simon Dooms | Alejandro Bellogín | Toon De Pessemier | Luc Martens
2016 Volume 7 Issue 3

2017

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Statistical biases in Information Retrieval metrics for recommender systems
Alejandro Bellogín | Pablo Castells | Iván Cantador
2017 Volume 20 Issue 6

2018

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Applying Subsequence Matching to Collaborative Filtering: Extended Abstract
Alejandro Bellogín | Pablo Sánchez
Proceedings of the 5th Spanish Conference on Information Retrieval, CERI 2018, Zaragoza, Spain, June 26-27, 2018

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New approaches for evaluation: correctness and freshness: Extended Abstract
Pablo Sánchez | Rus M. Mesas | Alejandro Bellogín
Proceedings of the 5th Spanish Conference on Information Retrieval, CERI 2018, Zaragoza, Spain, June 26-27, 2018

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Time-Aware Novelty Metrics for Recommender Systems
Pablo Sánchez | Alejandro Bellogín
Advances in Information Retrieval - 40th European Conference on IR Research, ECIR 2018, Grenoble, France, March 26-29, 2018, Proceedings

2019

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Building user profiles based on sequences for content and collaborative filtering
Pablo Sánchez | Alejandro Bellogín
2019 Volume 56 Issue 1

2020

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Time and sequence awareness in similarity metrics for recommendation
Pablo Sánchez | Alejandro Bellogín
2020 Volume 57 Issue 3

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Assessing ranking metrics in top-N recommendation
Daniel Valcarce | Alejandro Bellogín | Javier Parapar | Pablo Castells
2020 Volume 23 Issue 4

2021

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Elliot: A Comprehensive and Rigorous Framework for Reproducible Recommender Systems Evaluation
Vito Walter Anelli | Alejandro Bellogín | Antonio Ferrara | Daniele Malitesta | Felice Antonio Merra | Claudio Pomo | Francesco Maria Donini | 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

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How to Perform Reproducible Experiments in the ELLIOT Recommendation Framework: Data Processing, Model Selection, and Performance Evaluation
Vito Walter Anelli | Alejandro Bellogín | Antonio Ferrara | Daniele Malitesta | Felice Antonio Merra | Claudio Pomo | Francesco Maria Donini | Eugenio Di Sciascio | Tommaso Di Noia
Proceedings of the 11th Italian Information Retrieval Workshop 2021, Bari, Italy, September 13-15, 2021

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On the effects of aggregation strategies for different groups of users in venue recommendation
Pablo Sánchez | Alejandro Bellogín
2021 Volume 58 Issue 5

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Explaining recommender systems fairness and accuracy through the lens of data characteristics
Yashar Deldjoo | Alejandro Bellogín | Tommaso Di Noia
2021 Volume 58 Issue 5