Pablo Castells

Orcid: 0000-0003-0668-6317

Affiliations:
  • Autonomous University of Madrid, Spain


According to our database1, Pablo Castells authored at least 145 papers between 1995 and 2024.

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Bibliography

2024
Temporal Conformity-aware Hawkes Graph Network for Recommendations.
Proceedings of the ACM on Web Conference 2024, 2024

The 1st International Workshop on Risks, Opportunities, and Evaluation of Generative Models in Recommendation (ROEGEN).
Proceedings of the 18th ACM Conference on Recommender Systems, 2024

Recommender Systems.
Proceedings of the Information Retrieval: Advanced Topics and Techniques., 2024

2023
Report on the Workshop on Learning and Evaluating Recommendations with Impressions (LERI) at RecSys 2023.
SIGIR Forum, December, 2023

Impression-Aware Recommender Systems.
CoRR, 2023

Recommender Systems: A Primer.
CoRR, 2023

Workshop on Learning and Evaluating Recommendations with Impressions (LERI).
Proceedings of the 17th ACM Conference on Recommender Systems, 2023

Incorporating Impressions to Graph-Based Recommenders.
Proceedings of the Workshop on Learning and Evaluating Recommendations with Impressions co-located with the 17th ACM Conference on Recommender Systems (RecSys 2023), 2023

Characterizing Impression-Aware Recommender Systems.
Proceedings of the Workshop on Learning and Evaluating Recommendations with Impressions co-located with the 17th ACM Conference on Recommender Systems (RecSys 2023), 2023

Impressions in Recommender Systems: Present and Future.
Proceedings of the 13th Italian Information Retrieval Workshop (IIR 2023), 2023

2022
Novelty and Diversity in Recommender Systems.
Proceedings of the Recommender Systems Handbook, 2022

Offline Recommender System Evaluation: Challenges and New Directions.
AI Mag., 2022

Human Preferences as Dueling Bandits.
Proceedings of the SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11, 2022

RELISON: A Framework for Link Recommendation in Social Networks.
Proceedings of the SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11, 2022

Evaluation of Herd Behavior Caused by Population-scale Concept Drift in Collaborative Filtering.
Proceedings of the SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11, 2022

NEST: Simulating Pandemic-like Events for Collaborative Filtering by Modeling User Needs Evolution.
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, 2022

Addressing Cold Start in Product Search via Empirical Bayes.
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, 2022

Debiased Balanced Interleaving at Amazon Search.
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, 2022

2021
Popularity Bias in False-positive Metrics for Recommender Systems Evaluation.
ACM Trans. Inf. Syst., 2021

Guest editorial: special issue on ECIR 2020.
Inf. Retr. J., 2021

SimuRec: Workshop on Synthetic Data and Simulation Methods for Recommender Systems Research.
Proceedings of the RecSys '21: Fifteenth ACM Conference on Recommender Systems, Amsterdam, The Netherlands, 27 September 2021, 2021

2020
Assessing ranking metrics in top-N recommendation.
Inf. Retr. J., 2020

Offline evaluation options for recommender systems.
Inf. Retr. J., 2020

Effective contact recommendation in social networks by adaptation of information retrieval models.
Inf. Process. Manag., 2020

Agreement and Disagreement between True and False-Positive Metrics in Recommender Systems Evaluation.
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, 2020

On Target Item Sampling in Offline Recommender System Evaluation.
Proceedings of the RecSys 2020: Fourteenth ACM Conference on Recommender Systems, 2020

Axiomatic Analysis of Contact Recommendation Methods in Social Networks: An IR Perspective.
Proceedings of the Advances in Information Retrieval, 2020

Beyond Accuracy in Link Prediction.
Proceedings of the Bias and Social Aspects in Search and Recommendation, 2020

2019
Sudden Death: A New Way to Compare Recommendation Diversification.
CoRR, 2019

A simple multi-armed nearest-neighbor bandit for interactive recommendation.
Proceedings of the 13th ACM Conference on Recommender Systems, 2019

Multi-armed recommender system bandit ensembles.
Proceedings of the 13th ACM Conference on Recommender Systems, 2019

Information Retrieval Models for Contact Recommendation in Social Networks.
Proceedings of the Advances in Information Retrieval, 2019

2018
The Dagstuhl Perspectives Workshop on Performance Modeling and Prediction.
SIGIR Forum, 2018

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, 2018

Structural Novelty and Diversity in Link Prediction.
Proceedings of the Companion of the The Web Conference 2018 on The Web Conference 2018, 2018

From the PRP to the Low Prior Discovery Recall Principle for Recommender Systems.
Proceedings of the 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, 2018

Should I Follow the Crowd?: A Probabilistic Analysis of the Effectiveness of Popularity in Recommender Systems.
Proceedings of the 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, 2018

On the robustness and discriminative power of information retrieval metrics for top-N recommendation.
Proceedings of the 12th ACM Conference on Recommender Systems, 2018

Enhancing structural diversity in social networks by recommending weak ties.
Proceedings of the 12th ACM Conference on Recommender Systems, 2018

Recommending Contacts in Social Networks Using Information Retrieval Models.
Proceedings of the 5th Spanish Conference on Information Retrieval, 2018

Contact Recommendations in Social Networks.
Proceedings of the Collaborative Recommendations, 2018

2017
Statistical biases in Information Retrieval metrics for recommender systems.
Inf. Retr. J., 2017

A Probabilistic Reformulation of Memory-Based Collaborative Filtering: Implications on Popularity Biases.
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2017

2015
Novelty and Diversity in Recommender Systems.
Proceedings of the Recommender Systems Handbook, 2015

Diversity and Novelty on the Web: Search, Recommendation, and Data Streaming Aspects.
Proceedings of the 24th International Conference on World Wide Web Companion, 2015

2014
Neighbor Selection and Weighting in User-Based Collaborative Filtering: A Performance Prediction Approach.
ACM Trans. Web, 2014

Introduction to the Special Issue on Diversity and Discovery in Recommender Systems.
ACM Trans. Intell. Syst. Technol., 2014

Report on the workshop on reproducibility and replication in recommender systems evaluation (RepSys).
SIGIR Forum, 2014

Diversity and novelty in web search, recommender systems and data streams.
Proceedings of the Seventh ACM International Conference on Web Search and Data Mining, 2014

Improving sales diversity by recommending users to items.
Proceedings of the Eighth ACM Conference on Recommender Systems, 2014

Coverage, redundancy and size-awareness in genre diversity for recommender systems.
Proceedings of the Eighth ACM Conference on Recommender Systems, 2014

Exploring Social Network Effects on Popularity Biases in Recommender Systems.
Proceedings of the 6th Workshop on Recommender Systems and the Social Web (RSWeb 2014) co-located with the 8th ACM Conference on Recommender Systems (RecSys 2014), 2014

REDD 2014 - international workshop on recommender systems evaluation: dimensions and design.
Proceedings of the Eighth ACM Conference on Recommender Systems, 2014

2013
An empirical comparison of social, collaborative filtering, and hybrid recommenders.
ACM Trans. Intell. Syst. Technol., 2013

Predicting Recommender System Performance from an Information Retrieval Perspective.
Adv. Math. Commun., 2013

Report on the SIGIR 2013 workshop on benchmarking adaptive retrieval and recommender systems.
SIGIR Forum, 2013

A comparative study of heterogeneous item recommendations in social systems.
Inf. Sci., 2013

Bridging memory-based collaborative filtering and text retrieval.
Inf. Retr., 2013

Relevance-based language modelling for recommender systems.
Inf. Process. Manag., 2013

Personalization and Recommendation in Information Access.
Inf. Process. Manag., 2013

Diversity and novelty in information retrieval.
Proceedings of the 36th International ACM SIGIR conference on research and development in Information Retrieval, 2013

Workshop on benchmarking adaptive retrieval and recommender systems: BARS 2013.
Proceedings of the 36th International ACM SIGIR conference on research and development in Information Retrieval, 2013

Exploiting the diversity of user preferences for recommendation.
Proceedings of the Open research Areas in Information Retrieval, 2013

Improving memory-based collaborative filtering by neighbour selection based on user preference overlap.
Proceedings of the Open research Areas in Information Retrieval, 2013

Probabilistic collaborative filtering with negative cross entropy.
Proceedings of the Seventh ACM Conference on Recommender Systems, 2013

Workshop on reproducibility and replication in recommender systems evaluation: RepSys.
Proceedings of the Seventh ACM Conference on Recommender Systems, 2013

Exploiting Social Networks in Recommendation: a Multi-Domain Comparison.
Proceedings of the 13th Dutch-Belgian Workshop on Information Retrieval, 2013

2012
Group Recommender Systems: New Perspectives in the Social Web.
Proceedings of the Recommender Systems for the Social Web, 2012

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, 2012

Explicit relevance models in intent-oriented information retrieval diversification.
Proceedings of the 35th International ACM SIGIR conference on research and development in Information Retrieval, 2012

Personalized diversification of search results.
Proceedings of the 35th International ACM SIGIR conference on research and development in Information Retrieval, 2012

Workshop on recommendation utility evaluation: beyond RMSE - RUE 2012.
Proceedings of the Sixth ACM Conference on Recommender Systems, 2012

2011
Semantically enhanced Information Retrieval: An ontology-based approach.
J. Web Semant., 2011

Effects of Usage-Based Feedback on Video Retrieval: A Simulation-Based Study.
ACM Trans. Inf. Syst., 2011

An Enhanced Semantic Layer for Hybrid Recommender Systems: Application to News Recommendation.
Int. J. Semantic Web Inf. Syst., 2011

Extracting multilayered Communities of Interest from semantic user profiles: Application to group modeling and hybrid recommendations.
Comput. Hum. Behav., 2011

Intent-oriented diversity in recommender systems.
Proceedings of the Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2011

On diversifying and personalizing web search.
Proceedings of the Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2011

Self-adjusting hybrid recommenders based on social network analysis.
Proceedings of the Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2011

Rank and relevance in novelty and diversity metrics for recommender systems.
Proceedings of the 2011 ACM Conference on Recommender Systems, 2011

An Evaluation of Novelty and Diversity Based on Fuzzy Logic.
Proceedings of the Workshop on Novelty and Diversity in Recommender Systems, 2011

Workshop on novelty and diversity in recommender systems - DiveRS 2011.
Proceedings of the 2011 ACM Conference on Recommender Systems, 2011

Precision-oriented evaluation of recommender systems: an algorithmic comparison.
Proceedings of the 2011 ACM Conference on Recommender Systems, 2011

Predicting the Performance of Recommender Systems: An Information Theoretic Approach.
Proceedings of the Advances in Information Retrieval Theory, 2011

Text Retrieval Methods for Item Ranking in Collaborative Filtering.
Proceedings of the Advances in Information Retrieval, 2011

Structured collaborative filtering.
Proceedings of the 20th ACM Conference on Information and Knowledge Management, 2011

Applying soft links to diversify video recommendations.
Proceedings of the 9th International Workshop on Content-Based Multimedia Indexing, 2011

2010
Inferring user intent in web search by exploiting social annotations.
Proceedings of the Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, 2010

Workshop on the practical use of recommender systems algorithms & technology.
Proceedings of the 2010 ACM Conference on Recommender Systems, 2010

A study of heterogeneity in recommendations for a social music service.
Proceedings of the 1st International Workshop on Information Heterogeneity and Fusion in Recommender Systems, 2010

A Performance Prediction Approach to Enhance Collaborative Filtering Performance.
Proceedings of the Advances in Information Retrieval, 2010

Discerning Relevant Model Features in a Content-based Collaborative Recommender System.
Proceedings of the Preference Learning., 2010

2009
Predicting Neighbor Goodness in Collaborative Filtering.
Proceedings of the Flexible Query Answering Systems, 8th International Conference, 2009

2008
A Multi-Purpose Ontology-Based Approach for Personalised Content Filtering and Retrieval.
Proceedings of the Advances in Semantic Media Adaptation and Personalization, 2008

Information Extraction and Semantic Annotation of Wikipedia.
Proceedings of the Ontology Learning and Population: Bridging the Gap between Text and Knowledge, 2008

Signal, image and video processing (SIVP) special issue on "multimedia semantics, adaptation and personalization" Editorial.
Signal Image Video Process., 2008

Personalized information retrieval based on context and ontological knowledge.
Knowl. Eng. Rev., 2008

A multilayer ontology-based hybrid recommendation model.
AI Commun., 2008

Ontology-Based Personalised and Context-Aware Recommendations of News Items.
Proceedings of the 2008 IEEE / WIC / ACM International Conference on Web Intelligence, 2008

Semantic Search Meets the Web.
Proceedings of the 2th IEEE International Conference on Semantic Computing (ICSC 2008), 2008

News@hand: A Semantic Web Approach to Recommending News.
Proceedings of the Adaptive Hypermedia and Adaptive Web-Based Systems, 2008

2007
An Adaptation of the Vector-Space Model for Ontology-Based Information Retrieval.
IEEE Trans. Knowl. Data Eng., 2007

Personalized Content Retrieval in Context Using Ontological Knowledge.
IEEE Trans. Circuits Syst. Video Technol., 2007

Providing end-user facilities to simplify ontology-driven web application authoring.
Interact. Comput., 2007

A Flexible Model for Locating Services on the Web.
Int. J. Electron. Commer., 2007

Automatising the learning of lexical patterns: An application to the enrichment of WordNet by extracting semantic relationships from Wikipedia.
Data Knowl. Eng., 2007

Improving Ontology Recommendation and Reuse in WebCORE by Collaborative Assessments.
Proceedings of the Workshop on Social and Collaborative Construction of Structured Knowledge (CKC 2007) at the 16th International World Wide Web Conference (WWW2007) Banff, 2007

Semantic Web Technologies For The Financial Domain.
Proceedings of the Semantic Web: Real-World Applications from Industry, 2007

Ontology-Based Retrieval of Human Speech.
Proceedings of the 18th International Workshop on Database and Expert Systems Applications (DEXA 2007), 2007

2006
CORE: A Tool for Collaborative Ontology Reuse and Evaluation.
Proceedings of 4th International EON Workshop 2006 Evaluation of Ontologies for the Web Co-located with the WWW2006 Edinburgh, 2006

Enriching Group Profiles with Ontologies for Knowledge-Driven Colalborative Content Retrieval.
Proceedings of the 15th IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises (WETICE 2006), 2006

A Multi-Purpose Ontology-Based Approach for Personalized Content Filtering and Retrieval.
Proceedings of the First International Workshop on Semantic Media Adaptation and Personalization, 2006

Using historical data to enhance rank aggregation.
Proceedings of the SIGIR 2006: Proceedings of the 29th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2006

From Wikipedia to Semantic Relationships: a Semi-automated Annotation Approach.
Proceedings of the SemWiki2006, First Workshop on Semantic Wikis, 2006

A Heuristic Approach to Semantic Web Services Classification.
Proceedings of the Knowledge-Based Intelligent Information and Engineering Systems, 2006

Adaptive multimedia access: from user needs to semantic personalisation.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

XBRL Taxonomies and OWL Ontologies for Investment Funds.
Proceedings of the Advances in Conceptual Modeling - Theory and Practice, 2006

Multilayered Semantic Social Network Modeling by Ontology-Based User Profiles Clustering: Application to Collaborative Filtering.
Proceedings of the Managing Knowledge in a World of Networks, 2006

Probabilistic Score Normalization for Rank Aggregation.
Proceedings of the Advances in Information Retrieval, 2006

A Contextual Personalization Approach Based on Ontological Knowledge.
Proceedings of the 2nd International Workshop on Contexts and Ontologies: Theory, 2006

An Ontology-Based Approach to the Description and Execution of Composite Network Management Processes for Network Monitoring.
Proceedings of the Large Scale Management of Distributed Systems, 2006

Semi-automatic Semantic-Based Web Service Classification.
Proceedings of the Business Process Management Workshops, 2006

Towards Large-scale Non-taxonomic Relation Extraction: Estimating the Precision of Rote Extractors.
Proceedings of the 2nd Workshop on Ontology Learning and Population: Bridging the Gap between Text and Knowledge@COLING/ACL 2006, 2006

A Rote Extractor with Edit Distance-Based Generalisation and Multi-Corpora Precision Calculation.
Proceedings of the ACL 2006, 2006

2005
Self-tuning Personalized Information Retrieval in an Ontology-Based Framework.
Proceedings of the On the Move to Meaningful Internet Systems 2005: OTM 2005 Workshops, 2005

Automatic Extraction of Semantic Relationships for WordNet by Means of Pattern Learning from Wikipedia.
Proceedings of the Natural Language Processing and Information Systems, 2005

Semi-Automatic Web Service Generation and Classification.
Proceedings of the ICWS 2005 Second International Workshop on Semantic and Dynamic Web Processes, 2005

An Ontology-Based Information Retrieval Model.
Proceedings of the Semantic Web: Research and Applications, 2005

Automatic Assignment of Wikipedia Encyclopedic Entries to WordNet Synsets.
Proceedings of the Advances in Web Intelligence Third International Atlantic Web IntelligenceConference, 2005

2004
An EUD Approach for Making MBUI Practical.
Proceedings of the MBUI 2004, 2004

Neptuno: Semantic Web Technologies for a Digital Newspaper Archive.
Proceedings of the Semantic Web: Research and Applications, 2004

Semantic Web Technologies for Economic and Financial Information Management.
Proceedings of the Semantic Web: Research and Applications, 2004

Finding Iteration Patterns in Dynamic Web Page Authoring.
Proceedings of the Engineering Human Computer Interaction and Interactive Systems, 2004

2003
Dynamic web page authoring by example using ontology-based domain knowledge.
Proceedings of the 8th International Conference on Intelligent User Interfaces, 2003

2002
Un sistema de presentación dinámica hipermedia para representaciones.
Inteligencia Artif., 2002

Tailoring Dynamic Ontology-Driven Web Documents by Demonstration.
Proceedings of the International Conference on Information Visualisation, 2002

2001
e-Portfolio: Java Technology for Financial Applications on the Internet.
Proceedings of WebNet 2001, 2001

An Adaptive Hypermedia Presentation Modeling System for Custom Knowledge Representations.
Proceedings of WebNet 2001, 2001

A generic presentation modeling system for adaptive web-based instructional applications.
Proceedings of the CHI 2001 Extended Abstracts on Human Factors in Computing Systems, 2001

An Authoring Tool for Building Adaptive Learning Guidance Systems on the Web.
Proceedings of the Active Media Technology, 6th International Computer Science Conference, 2001

Interactive Design of Adaptive Courses.
Proceedings of the Computers and Education. Towards an Interconnected Society, 2001

1999
HandsOn: Dynamic Interface Presentations by Example.
Proceedings of the Human-Computer Interaction: Ergonomics and User Interfaces, 1999

Presentation Models by Example.
Proceedings of the Design, 1999

1997
Declarative Models of Presentation.
Proceedings of the 2nd International Conference on Intelligent User Interfaces, 1997

1995
Declarative interface models for user interface construction tools: the MASTERMIND approach.
Proceedings of the Engineering for Human-Computer Interaction, 1995


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