Pablo Castells

ORCID

Publication Activity (10 Years)

Years Active: 1995-2024
Publications (10 Years): 40

Top Venues

Publications

Chenglong Ma, Yongli Ren, Pablo Castells, Mark Sanderson
Temporal Conformity-aware Hawkes Graph Network for Recommendations. WWW (2024)
Fernando Benjamín Pérez Maurera, Maurizio Ferrari Dacrema, Pablo Castells, Paolo Cremonesi
Characterizing Impression-Aware Recommender Systems. LERI@RecSys (2023)
Maurizio Ferrari Dacrema, Pablo Castells, Justin Basilico, Paolo Cremonesi
Report on the Workshop on Learning and Evaluating Recommendations with Impressions (LERI) at RecSys 2023. SIGIR Forum 57 (2) (2023)
Fernando Benjamín Pérez Maurera, Maurizio Ferrari Dacrema, Pablo Castells, Paolo Cremonesi
Incorporating Impressions to Graph-Based Recommenders. LERI@RecSys (2023)
Fernando Benjamín Pérez Maurera, Maurizio Ferrari Dacrema, Pablo Castells, Paolo Cremonesi
Impression-Aware Recommender Systems. CoRR (2023)
Maurizio Ferrari Dacrema, Pablo Castells, Justin Basilico, Paolo Cremonesi
Workshop on Learning and Evaluating Recommendations with Impressions (LERI). RecSys (2023)
Pablo Castells, Dietmar Jannach
Recommender Systems: A Primer. CoRR (2023)
Fernando Benjamín Pérez Maurera, Maurizio Ferrari Dacrema, Pablo Castells, Paolo Cremonesi
Impressions in Recommender Systems: Present and Future. IIR (2023)
Chenglong Ma, Yongli Ren, Pablo Castells, Mark Sanderson
Evaluation of Herd Behavior Caused by Population-scale Concept Drift in Collaborative Filtering. SIGIR (2022)
Cuize Han, Pablo Castells, Parth Gupta, Xu Xu, Vamsi Salaka
Addressing Cold Start in Product Search via Empirical Bayes. CIKM (2022)
Xinyi Yan, Chengxi Luo, Charles L. A. Clarke, Nick Craswell, Ellen M. Voorhees, Pablo Castells
Human Preferences as Dueling Bandits. CoRR (2022)
Chenglong Ma, Yongli Ren, Pablo Castells, Mark Sanderson
NEST: Simulating Pandemic-like Events for Collaborative Filtering by Modeling User Needs Evolution. CIKM (2022)
Javier Sanz-Cruzado, Pablo Castells
RELISON: A Framework for Link Recommendation in Social Networks. SIGIR (2022)
Pablo Castells, Alistair Moffat
Offline Recommender System Evaluation: Challenges and New Directions. AI Mag. 43 (2) (2022)
Nan Bi, Pablo Castells, Daniel Gilbert, Slava Galperin, Patrick Tardif, Sachin Ahuja
Debiased Balanced Interleaving at Amazon Search. CIKM (2022)
Xinyi Yan, Chengxi Luo, Charles L. A. Clarke, Nick Craswell, Ellen M. Voorhees, Pablo Castells
Human Preferences as Dueling Bandits. SIGIR (2022)
Elisa Mena-Maldonado, Rocío Cañamares, Pablo Castells, Yongli Ren, Mark Sanderson
Popularity Bias in False-positive Metrics for Recommender Systems Evaluation. ACM Trans. Inf. Syst. 39 (3) (2021)
Joemon M. Jose, Emine Yilmaz, João Magalhães, Pablo Castells
Guest editorial: special issue on ECIR 2020. Inf. Retr. J. 24 (1) (2021)
Michael D. Ekstrand, Allison Chaney, Pablo Castells, Robin Burke, David Rohde, Manel Slokom
SimuRec: Workshop on Synthetic Data and Simulation Methods for Recommender Systems Research. RecSys (2021)
Elisa Mena-Maldonado, Rocío Cañamares, Pablo Castells, Yongli Ren, Mark Sanderson
Agreement and Disagreement between True and False-Positive Metrics in Recommender Systems Evaluation. SIGIR (2020)
Javier Sanz-Cruzado, Pablo Castells, Craig Macdonald, Iadh Ounis
Effective contact recommendation in social networks by adaptation of information retrieval models. Inf. Process. Manag. 57 (5) (2020)
Javier Sanz-Cruzado, Pablo Castells
Beyond Accuracy in Link Prediction. BIAS (2020)
Javier Sanz-Cruzado, Craig Macdonald, Iadh Ounis, Pablo Castells
Axiomatic Analysis of Contact Recommendation Methods in Social Networks: An IR Perspective. ECIR (1) (2020)
Rocío Cañamares, Pablo Castells
On Target Item Sampling in Offline Recommender System Evaluation. RecSys (2020)
Daniel Valcarce, Alejandro Bellogín, Javier Parapar, Pablo Castells
Assessing ranking metrics in top-N recommendation. Inf. Retr. J. 23 (4) (2020)
Rocío Cañamares, Pablo Castells, Alistair Moffat
Offline evaluation options for recommender systems. Inf. Retr. J. 23 (4) (2020)
Derek G. Bridge, Mesut Kaya, Pablo Castells
Sudden Death: A New Way to Compare Recommendation Diversification. CoRR (2019)
Javier Sanz-Cruzado, Pablo Castells
Information Retrieval Models for Contact Recommendation in Social Networks. ECIR (1) (2019)
Rocío Cañamares, Marcos Redondo, Pablo Castells
Multi-armed recommender system bandit ensembles. RecSys (2019)
Javier Sanz-Cruzado, Pablo Castells, Esther López
A simple multi-armed nearest-neighbor bandit for interactive recommendation. RecSys (2019)
Javier Sanz-Cruzado, Sofía M. Pepa, Pablo Castells
Structural Novelty and Diversity in Link Prediction. WWW (Companion Volume) (2018)
Javier Sanz-Cruzado, Pablo Castells
Enhancing structural diversity in social networks by recommending weak ties. RecSys (2018)
Daniel Valcarce, Alejandro Bellogín, Javier Parapar, Pablo Castells
On the robustness and discriminative power of information retrieval metrics for top-N recommendation. RecSys (2018)
Rocío Cañamares, Pablo Castells
Should I Follow the Crowd?: A Probabilistic Analysis of the Effectiveness of Popularity in Recommender Systems. SIGIR (2018)
Nicola Ferro, Norbert Fuhr, Gregory Grefenstette, Joseph A. Konstan, Pablo Castells, Elizabeth M. Daly, Thierry Declerck, Michael D. Ekstrand, Werner Geyer, Julio Gonzalo, Tsvi Kuflik, Krister Lindén, Bernardo Magnini, Jian-Yun Nie, Raffaele Perego, Bracha Shapira, Ian Soboroff, Nava Tintarev, Karin Verspoor, Martijn C. Willemsen, Justin Zobel
The Dagstuhl Perspectives Workshop on Performance Modeling and Prediction. SIGIR Forum 52 (1) (2018)
Javier Sanz-Cruzado, Sofía M. Pepa, Pablo Castells
Recommending Contacts in Social Networks Using Information Retrieval Models. CERI (2018)
Nicola Ferro, Norbert Fuhr, Gregory Grefenstette, Joseph A. Konstan, Pablo Castells, Elizabeth M. Daly, Thierry Declerck, Michael D. Ekstrand, Werner Geyer, Julio Gonzalo, Tsvi Kuflik, Krister Lindén, Bernardo Magnini, Jian-Yun Nie, Raffaele Perego, Bracha Shapira, Ian Soboroff, Nava Tintarev, Karin Verspoor, Martijn C. Willemsen, Justin Zobel
From Evaluating to Forecasting Performance: How to Turn Information Retrieval, Natural Language Processing and Recommender Systems into Predictive Sciences (Dagstuhl Perspectives Workshop 17442). Dagstuhl Manifestos 7 (1) (2018)
Rocío Cañamares, Pablo Castells
From the PRP to the Low Prior Discovery Recall Principle for Recommender Systems. SIGIR (2018)
Rocío Cañamares, Pablo Castells
A Probabilistic Reformulation of Memory-Based Collaborative Filtering: Implications on Popularity Biases. SIGIR (2017)
Alejandro Bellogín, Pablo Castells, Iván Cantador
Statistical biases in Information Retrieval metrics for recommender systems. Inf. Retr. J. 20 (6) (2017)
Rodrygo L. T. Santos, Pablo Castells, Ismail Sengor Altingovde, Fazli Can
Diversity and Novelty on the Web: Search, Recommendation, and Data Streaming Aspects. WWW (Companion Volume) (2015)
Panagiotis Adamopoulos, Alejandro Bellogín, Pablo Castells, Paolo Cremonesi, Harald Steck
REDD 2014 - international workshop on recommender systems evaluation: dimensions and design. RecSys (2014)
Alejandro Bellogín, Pablo Castells, Alan Said, Domonkos Tikk
Report on the workshop on reproducibility and replication in recommender systems evaluation (RepSys). SIGIR Forum 48 (1) (2014)
Alejandro Bellogín, Pablo Castells, Iván Cantador
Neighbor Selection and Weighting in User-Based Collaborative Filtering: A Performance Prediction Approach. ACM Trans. Web 8 (2) (2014)
Saul Vargas, Pablo Castells
Improving sales diversity by recommending users to items. RecSys (2014)
Pablo Castells, Jun Wang, Rubén Lara, Dell Zhang
Introduction to the Special Issue on Diversity and Discovery in Recommender Systems. ACM Trans. Intell. Syst. Technol. 5 (4) (2014)
Rodrygo L. T. Santos, Pablo Castells, Ismail Sengör Altingövde, Fazli Can
Diversity and novelty in web search, recommender systems and data streams. WSDM (2014)
Saúl Vargas, Linas Baltrunas, Alexandros Karatzoglou, Pablo Castells
Coverage, redundancy and size-awareness in genre diversity for recommender systems. RecSys (2014)
Rocío Cañamares, Pablo Castells
Exploring Social Network Effects on Popularity Biases in Recommender Systems. RSWeb@RecSys (2014)
Juan M. Fernández-Luna, Juan F. Huete, Pablo Castells
Personalization and Recommendation in Information Access. Inf. Process. Manag. 49 (3) (2013)
Alejandro Bellogín, Pablo Castells, Iván Cantador
Predicting Recommender System Performance from an Information Retrieval Perspective. Tiny Trans. Comput. Sci. 2 (2013)
Pablo Castells, Frank Hopfgartner, Alan Said, Mounia Lalmas
Workshop on benchmarking adaptive retrieval and recommender systems: BARS 2013. SIGIR (2013)
Rodrygo L. T. Santos, Pablo Castells, Ismail Sengör Altingövde, Fazli Can
Diversity and novelty in information retrieval. SIGIR (2013)
Alejandro Bellogín, Iván Cantador, Pablo Castells
A comparative study of heterogeneous item recommendations in social systems. Inf. Sci. 221 (2013)
Pablo Castells, Frank Hopfgartner, Alan Said, Mounia Lalmas
Report on the SIGIR 2013 workshop on benchmarking adaptive retrieval and recommender systems. SIGIR Forum 47 (2) (2013)
Alejandro Bellogín, Iván Cantador, Fernando Díez, Pablo Castells, Enrique Chavarriaga
An empirical comparison of social, collaborative filtering, and hybrid recommenders. ACM Trans. Intell. Syst. Technol. 4 (1) (2013)
Alejandro Bellogín, Jun Wang, Pablo Castells
Bridging memory-based collaborative filtering and text retrieval. Inf. Retr. 16 (6) (2013)
Alejandro Bellogín, Iván Cantador, Pablo Castells, Fernando Díez
Exploiting Social Networks in Recommendation: a Multi-Domain Comparison. DIR (2013)
Saul Vargas, Pablo Castells
Exploiting the diversity of user preferences for recommendation. OAIR (2013)
Alejandro Bellogín, Pablo Castells, Iván Cantador
Improving memory-based collaborative filtering by neighbour selection based on user preference overlap. OAIR (2013)
Alejandro Bellogín, Pablo Castells, Alan Said, Domonkos Tikk
Workshop on reproducibility and replication in recommender systems evaluation: RepSys. RecSys (2013)
Javier Parapar, Alejandro Bellogín, Pablo Castells, Alvaro Barreiro
Relevance-based language modelling for recommender systems. Inf. Process. Manag. 49 (4) (2013)
Alejandro Bellogín, Javier Parapar, Pablo Castells
Probabilistic collaborative filtering with negative cross entropy. RecSys (2013)
Saul Vargas, Pablo Castells, David Vallet
Explicit relevance models in intent-oriented information retrieval diversification. SIGIR (2012)
Felisa Verdejo, Raquel Martínez-Unanue, Pablo Castells, Antonio Moreno-Sandoval, Doroteo T. Toledano, Paloma Martínez, Abraham Duarte, José Manuel Pardo, Manuel Buenaga, Juan Cigarrán, Víctor Fresno-Fernández, Ana García-Serrano, Iván Cantador, David Vallet, A. Martínez
Mejorando el acceso, el análisis y la visibilidad de la Información y los contenidos Multilingues y Multimedia en Red para la Comunidad de Madrid. Proces. del Leng. Natural 49 (2012)
David Vallet, Pablo Castells
Personalized diversification of search results. SIGIR (2012)
Xavier Amatriain, Pablo Castells, Arjen P. de Vries, Christian Posse
Workshop on recommendation utility evaluation: beyond RMSE - RUE 2012. RecSys (2012)
Simone Santini, Pablo Castells
An Evaluation of Novelty and Diversity Based on Fuzzy Logic. DiveRS@RecSys (2011)
Alejandro Bellogín, Pablo Castells, Iván Cantador
Self-adjusting hybrid recommenders based on social network analysis. SIGIR (2011)
Alejandro Bellogín, Pablo Castells, Iván Cantador
Predicting the Performance of Recommender Systems: An Information Theoretic Approach. ICTIR (2011)
Iván Cantador, Pablo Castells
Extracting multilayered Communities of Interest from semantic user profiles: Application to group modeling and hybrid recommendations. Comput. Hum. Behav. 27 (4) (2011)
Alejandro Bellogín, Pablo Castells, Iván Cantador
Precision-oriented evaluation of recommender systems: an algorithmic comparison. RecSys (2011)
David Vallet, Frank Hopfgartner, Joemon M. Jose, Pablo Castells
Effects of Usage-Based Feedback on Video Retrieval: A Simulation-Based Study. ACM Trans. Inf. Syst. 29 (2) (2011)
David Vallet, Pablo Castells
On diversifying and personalizing web search. SIGIR (2011)
Saul Vargas, Pablo Castells, David Vallet
Intent-oriented diversity in recommender systems. SIGIR (2011)
Pablo Castells, Jun Wang, Rubén Lara, Dell Zhang
Workshop on novelty and diversity in recommender systems - DiveRS 2011. RecSys (2011)
Alejandro Bellogín, Jun Wang, Pablo Castells
Structured collaborative filtering. CIKM (2011)
David Vallet, Martin Halvey, Joemon M. Jose, Pablo Castells
Applying soft links to diversify video recommendations. CBMI (2011)
Miriam Fernández, Iván Cantador, Vanessa López, David Vallet, Pablo Castells, Enrico Motta
Semantically enhanced Information Retrieval: An ontology-based approach. J. Web Semant. 9 (4) (2011)
Saul Vargas, Pablo Castells
Rank and relevance in novelty and diversity metrics for recommender systems. RecSys (2011)
Iván Cantador, Pablo Castells, Alejandro Bellogín
An Enhanced Semantic Layer for Hybrid Recommender Systems: Application to News Recommendation. Int. J. Semantic Web Inf. Syst. 7 (1) (2011)
Alejandro Bellogín, Jun Wang, Pablo Castells
Text Retrieval Methods for Item Ranking in Collaborative Filtering. ECIR (2011)
Alejandro Bellogín, Pablo Castells
A Performance Prediction Approach to Enhance Collaborative Filtering Performance. ECIR (2010)
José M. Conde, David Vallet, Pablo Castells
Inferring user intent in web search by exploiting social annotations. SIGIR (2010)
Jérôme Picault, Dimitre Kostadinov, Pablo Castells, Alejandro Jaimes
Workshop on the practical use of recommender systems algorithms & technology. RecSys (2010)
Alejandro Bellogín, Iván Cantador, Pablo Castells
A study of heterogeneity in recommendations for a social music service. HetRec@RecSys (2010)
Alejandro Bellogín, Pablo Castells
Predicting Neighbor Goodness in Collaborative Filtering. FQAS (2009)
Iván Cantador, Alejandro Bellogín, Pablo Castells
Ontology-Based Personalised and Context-Aware Recommendations of News Items. Web Intelligence (2008)
Iván Cantador, Alejandro Bellogín, Pablo Castells
News@hand: A Semantic Web Approach to Recommending News. AH (2008)
Phivos Mylonas, David Vallet, Pablo Castells, Miriam Fernández, Yannis Avrithis
Personalized information retrieval based on context and ontological knowledge. Knowl. Eng. Rev. 23 (1) (2008)
Miriam Fernández, Vanessa López, Marta Sabou, Victoria S. Uren, David Vallet, Enrico Motta, Pablo Castells
Semantic Search Meets the Web. ICSC (2008)
Phivos Mylonas, Hermann Hellwagner, Pablo Castells, Manolis Wallace
Signal, image and video processing (SIVP) special issue on "multimedia semantics, adaptation and personalization" Editorial. Signal Image Video Process. 2 (4) (2008)
Iván Cantador, Alejandro Bellogín, Pablo Castells
A multilayer ontology-based hybrid recommendation model. AI Commun. 21 (2-3) (2008)
Pablo Castells, Miriam Fernández, David Vallet
An Adaptation of the Vector-Space Model for Ontology-Based Information Retrieval. IEEE Trans. Knowl. Data Eng. 19 (2) (2007)
Iván Cantador, Miriam Fernández, Pablo Castells
Improving Ontology Recommendation and Reuse in WebCORE by Collaborative Assessments. CKC (2007)
Maria Ruiz-Casado, Enrique Alfonseca, Pablo Castells
Automatising the learning of lexical patterns: An application to the enrichment of WordNet by extracting semantic relationships from Wikipedia. Data Knowl. Eng. 61 (3) (2007)
Rubén Lara, Miguel Ángel Corella, Pablo Castells
A Flexible Model for Locating Services on the Web. Int. J. Electron. Commer. 12 (2) (2007)
José A. Macías, Pablo Castells
Providing end-user facilities to simplify ontology-driven web application authoring. Interact. Comput. 19 (4) (2007)
Javier Tejedor, Roberto García, Miriam Fernández, Fernando J. López-Colino, Ferran Perdrix, José A. Macías, Rosa M. Gil, Marta Oliva, Diego Moya, José Colás, Pablo Castells
Ontology-Based Retrieval of Human Speech. DEXA Workshops (2007)
Iván Cantador, Miriam Fernández, Pablo Castells
Improving Ontology Recommendation and Reuse in WebCORE by Collaborative Assessments. CKC (2007)

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Publication Activity (10 Years)

Top Topics

Top Venues

Pablo Castells