Publications

Maria Saxborn, Yuechen Pan, Alan Said (2024). Trust Through Recommendation in E-commerce. To Appear in Proceedings of the 2024 Conference on Human Information Interaction and Retrieval.

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Itallo Silva, Leandro Balby Marinho, Alan Said, Martijn Willemsen (2024). Leveraging ChatGPT for Automated Human-centered Explanations in Recommender Systems. To Appear in Proceedings of the 29th ACM Conference on Intelligent User Interfaces.

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Christine Bauer, Ben Carterette, Nicola Ferro, Norbert Fuhr, Joeran Beel, Timo Breuer, Charles L. A. Clarke, Anita Crescenzi, Gianluca Demartini, Giorgio Maria Di Nunzio, Laura Dietz, Guglielmo Faggioli, Bruce Ferwerda, Maik Fröbe, Matthias Hagen, Allan Hanbury, Claudia Hauff, Dietmar Jannach, Noriko Kando, Evangelos Kanoulas, Bart P. Knijnenburg, Udo Kruschwitz, Meijie Li, Maria Maistro, Lien Michiels, Andrea Papenmeier, Martin Potthast, Paolo Rosso, Alan Said, Philipp Schaer, Christin Seifert, Damiano Spina, Benno Stein, Nava Tintarev, Julián Urbano, Henning Wachsmuth, Martijn C. Willemsen, Justin Zobel (2023). Report on the Dagstuhl Seminar on Frontiers of Information Access Experimentation for Research and Education. ACM SIGIR Forum.

Alan Said, Martijn C. Willemsen, Leandro Balby Marinho, Itallo Silva (2023). Leveraging Large Language Models for Goal-driven Interactive Recommendations. Proceedings of the 11th International Conference on Human-Agent Interaction.

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Christine Bauer, Eva Zangerle, Alan Said (2023). Exploring the Landscape of Recommender Systems Evaluation: Practices and Perspectives. ACM Transactions on Recommender Systems.

Alan Said, Eva Zangerle, Christine Bauer (2023). Third Workshop: Perspectives on the Evaluation of Recommender Systems (PERSPECTIVES 2023). Proceedings of the 17th ACM Conference on Recommender Systems.

Itallo Silva, Alan Said, Leandro Balby Marinho, Martijn Willemsen (2023). Leveraging Large Language Models for Recommendation and Explanation. Proceedings of the 10th Joint Workshop on Interfaces and Human Decision Making for Recommender Systems (IntRS 2023).

Bruce Ferwerda, Allan Hanbury, Bart P. Knijnenburg, Birger Larsen, Lien Michiels, Andrea Papenmeier, Alan Said, Philipp Schaer, Martijn Willemsen (2023). Reality Check – Conducting Real World Studies: Frontiers of Information Access Experimentation fortextlessbr/textgreaterResearch and Education. Frontiers of Information Access Experimentation for Research and Education.

Hanna Hauptmann, Alan Said, Christoph Trattner (2022). Research directions in recommender systems for health and well-being. User Modeling and User-Adapted Interaction.

Mohammad Obaid, Kıvanç Tatar, Mikael Wiberg, Alan Said, Mattias Rost, Alexandra Weilenmann, Wafa Johal, Friederike Eyssel (2022). Social Drones for Health and Well-being. Adjunct Proceedings of the 2022 Nordic Human-Computer Interaction Conference.

Eva Zangerle, Christine Bauer, Alan Said (2022). Second Workshop: Perspectives on the Evaluation of Recommender Systems (PERSPECTIVES 2022). Proceedings of the 16th ACM Conference on Recommender Systems.

Eva Zangerle, Christine Bauer, Alan Said (2022). Report on the 1st workshop on the perspectives on the evaluation of recommender systems (PERSPECTIVES 2021) at RecSys 2021. ACM SIGIR Forum.

Alejandro Bellogin, Alan Said (2021). Improving accountability in recommender systems research through reproducibility. User Modeling and User-Adapted Interaction.

Anton Angwald, Kalle Areskoug, Alan Said (2021). Prediction Accuracy and Autonomy. Proceedings of the Perspectives on the Evaluation of Recommender Systems Workshop 2021.

Eva Zangerle, Christine Bauer, Alan Said (2021). Perspectives on the Evaluation of Recommender Systems (PERSPECTIVES). Proceedings of the 15th ACM Conference on Recommender Systems.

Yuchong Zhang, Morten Fjeld, Marco Fratarcangeli, Alan Said, Shengdong Zhao (2021). Affective Colormap Design for Accurate Visual Comprehension in Industrial Tomography. Sensors.

Yuchong Zhang, Morten Fjeld, Alan Said, Marco Fratarcangeli (2020). Task-based Colormap Design Supporting Visual Comprehension in Process Tomography. EuroVis 2020 - Short Papers.

Alan Said, H. Schäfer, H. Torkamaan, C. Trattner (2020). Fifth International Workshop on Health Recommender Systems (HealthRecSys 2020). RecSys 2020 - 14th ACM Conference on Recommender Systems.

Alejandro Bellogin, Alan Said (2019). Information Retrieval and Recommender Systems. Data Science in Practice.

Alan Said, J. Bae, D. Parra, S. Pashami (2019). IDM-WSDM 2019: Workshop on interactive data mining. WSDM 2019 - Proceedings of the 12th ACM International Conference on Web Search and Data Mining.

D. Elsweiler, H. Schäfer, B. Ludwig, H. Torkamaan, Alan Said, C. Trattner (2019). Fourth international workshop on health recommender systems (HealthRecSys 2019). RecSys 2019 - 13th ACM Conference on Recommender Systems.

A. Holst, M.-R. Bouguelia, O. Görnerup, S. Pashami, A. Al-Shishtawy, G. Falkman, A. Karlsson, Alan Said, J. Bae, S. Girdzijauskas, S. Nowaczyk, A. Soliman (2019). Eliciting structure in data. Joint Proceedings of the ACM IUI 2019 Workshops.

Alan Said, Vicenç Torra (2019). Data Science: An Introduction. Data Science in Practice.

Alan Said, Vicenç Torra (2019). Data Science in Practice. Springer International Publishing.

David Elsweiler, Bernd Ludwig, Alan Said, Hanna Schäfer, Helma Torkamaan, Christoph Trattner (2018). Third international workshop on health recommender systems (healthrecsys 2018). Proceedings of the 12th ACM Conference on Recommender Systems.

Toine Bogers, Marijn Koolen, Bamshad Mobasher, Alan Said, Casper Petersen (2018). 2nd workshop on recommendation in complex scenarios (complexrec 2018). Proceedings of the 12th ACM Conference on Recommender Systems.

Alejandro Bellogin, Alan Said (2018). Offline and Online Evaluation of Recommendations. Collaborative Recommendations.

Alejandro Bellogin, Alan Said (2018). Recommender Systems Evaluation. Encyclopedia of Social Network Analysis and Mining.

Christoph Trattner, Alan Said, Ludovico Boratto (2018). Evaluating Group Recommender Systems. Group Recommender Systems : An Introduction.

Alan Said, A. Bellogín (2018). Coherence and inconsistencies in rating behavior: estimating the magic barrier type: publication profile: false of recommender systems. User Modeling and User-Adapted Interaction.

Hanna Schäfer, Santiago Hors-Fraile, Raghav Pavan Karumur, André Calero Valdez, Alan Said, Helma Torkamaan, Tom Ulmer, Christoph Trattner (2017). Towards Health (Aware) Recommender Systems. Proceedings of the 2017 International Conference on Digital Health.

T. Bogers, M. Koolen, B. Mobasher, Alan Said, A. Tuzhilin (2017). Workshop on recommendation in complex scenarios (ComplexRec 2017). CEUR Workshop Proceedings.

H. Schäfer, M. Elahi, D. Elsweiler, G. Groh, M. Harvey, B. Ludwig, F. Ricci, Alan Said (2017). User nutrition modelling and recommendation - Balancing simplicity and complexity. UMAP 2017 - Adjunct Publication of the 25th Conference on User Modeling, Adaptation and Personalization.

P. Knees, K. Andersen, Alan Said, M. Tkalčič (2017). UMAP 2017 workshop on surprise, opposition, and obstruction in adaptive and type: publication profile: false personalized systems: Organizers' welcome. UMAP 2017 - Adjunct Publication of the 25th Conference on User Modeling, Adaptation and Personalization.

D. Elsweiler, S. Hors-Fraile, B. Ludwig, Alan Said, H. Schäfer, C. Trattner, H. Torkamaan, A.C. Valdez (2017). Second workshop on health recommender systems (HealthRecSys 2017). RecSys 2017 - Proceedings of the 11th ACM Conference on Recommender Systems.

E. Ventocilla, J. Bae, M. Riveiro, Alan Said (2017). A billiard metaphor for exploring complex graphs. Proceedings of the Second Workshop on Supporting Complex Search Tasks.

Paolo Cremonesi, Alan Said, Domonkos Tikk, Michelle X. Zhou (2016). Introduction to the Special Issue on Recommender System Benchmarking. ACM Transactions on Intelligent Systems and Technology.

P. Knees, K. Andersen, Alan Said, M. Tkalčič (2016). Workshop on surprise, opposition, and obstruction in adaptive and personalized. Late-breaking Results, Posters, Demos, Doctoral Consortium and Workshops Proceedings of the 24th ACM Conference on User Modeling, Adaptation and Personalisation (UMAP 2016).

M. Edkrantz, S. Truve, Alan Said (2016). Predicting Vulnerability Exploits in the Wild. Proceedings - 2nd IEEE International Conference on Cyber Security and Cloud Computing, CSCloud 2015 - IEEE International Symposium of Smart Cloud, IEEE SSC 2015.

D. Elsweiler, B. Ludwig, Alan Said, H. Schäfer, C. Trattner (2016). Engendering health with recommender systems: Workshop abstract. RecSys 2016 - Proceedings of the 10th ACM Conference on Recommender Systems.

Alan Said (2016). A Short History of the RecSys Challenge. AI Magazine.

Alejandro Bellogin, Alan Said (2015). The Not-so-Magic Magic Barrier of Recommender Systems. Tiny Transactions on Computer Science.

Alan Said, A. Bellogín (2015). Replicable evaluation of recommender systems. RecSys 2015 - Proceedings of the 9th ACM Conference on Recommender Systems.

Michel Edkrantz, Alan Said (2015). Predicting Cyber Vulnerability Exploits with Machine Learning. Thirteenth Scandinavian Conference on Artificial Intelligence.

Alan Said, Alejandro Bellogin (2015). Non-transparent recommender system evaluation leads to misleading results. Tiny Transactions on Computer Science.

D. Elsweiler, M. Harvey, B. Ludwig, Alan Said (2015). Bringing the "healthy" into food recommenders. Workshop on Decision Making and Recommender Systems.

Ernesto William De Luca, Alan Said, Fabio Crestani, David Elsweiler (2015). 5th Workshop on Context-Awareness in Retrieval and Recommendation. Advances in Information Retrieval. ECIR 2015.

Alan Said, Ernesto W. De Luca, Daniele Quercia (2014). Report on the 4th Workshop on Context-awareness in Retrieval and Recommendation. ACM SIGIR Forum.

Alan Said, Alejandro Bellogin (2014). RiVal: A New Benchmarking Toolkit for Recommender Systems. ERCIM News.

Alejandro Bellogin, Pablo Castells, Alan Said, Domonkos Tikk (2014). Report on the workshop on reproducibility and replication in recommender systems. ACM SIGIR Forum.

Alan Said, Alejandro Bellogin (2014). You are What You Eat! Tracking Health Through Recipe Interactions.. 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), Foster City, CA, USA, October 6, 2014..

B. Loni, Alan Said (2014). WrapRec: An easy extension of recommender system libraries. RecSys 2014 - Proceedings of the 8th ACM Conference on Recommender Systems.

Alan Said, Martha Larson, Domonkos Tikk, Paolo Cremonesi, Alexandros Karatzoglou, Frank Hopfgartner, Roberto Turrin, Joost Geurts (2014). User-Item Reciprocity in Recommender Systems: Incentivizing the Crowd. Posters, Demos, Late-breaking Results and Workshop Proceedings of the 22nd Conference on User Modeling, Adaptation, and Personalization co-located with the 22nd Conference on User Modeling, Adaptation, and Personalization (UMAP2014).

Alejandro Bellogin, Alan Said, Arjen P. de Vries (2014). The Magic Barrier of Recommender Systems – No Magic, Just Ratings. User Modeling, Adaptation, and Personalization.

Alan Said, E.W. De Luca, D. Quercia, M. Böhmer (2014). The 4th Workshop on Context-awareness in Retrieval and Recommendation (CaRR 2014). ACM International Conference Proceeding Series.

Alan Said, A. Bellogín (2014). RiVal - A toolkit to foster reproducibility in recommender system evaluation. RecSys 2014 - Proceedings of the 8th ACM Conference on Recommender Systems.

Alan Said, S. Dooms, B. Loni, D. Tikk (2014). Recommender systems challenge 2014. RecSys 2014 - Proceedings of the 8th ACM Conference on Recommender Systems.

B. Loni, Alan Said, M. Larson, A. Hanjalic (2014). Free lunch enhancement for collaborative filtering with factorization machines. RecSys 2014 - Proceedings of the 8th ACM Conference on Recommender Systems.

Alan Said, A. Bellogín, J. Lin, A. De Vries (2014). Do recommendations matter? News recommendation in real life. Proceedings of the ACM Conference on Computer Supported Cooperative Work, CSCW.

Alan Said, A. Bellogín (2014). Comparative recommender system evaluation: Benchmarking recommendation frameworks. RecSys 2014 - Proceedings of the 8th ACM Conference on Recommender Systems.

D. Tikk, R. Turrin, M. Larson, D. Zibriczky, D. Malagoli, Alan Said, A. Lommatzsch, V. Gál, S. Székely (2014). Comparative evaluation of recommender systems for digital media. IBC.

Alejandro Bellogin, Thaer Samar, Arjen P. de Vries, Alan Said (2014). Challenges on Combining Open Web and Dataset Evaluation Results: The Case type: publication profile: false of the Contextual Suggestion Track. Advances in Information Retrieval.

Alan Said, Domonkos Tikk, Paolo Cremonesi (2014). Benchmarking. Recommendation Systems in Software Engineering.

Alan Said, B. Loni, R. Turrin, A. Lommatzsch (2014). An extended data model format for composite recommendation. Poster Proceedings of the 8th ACM Conference on Recommender Systems (RecSys 2014).

Alan Said, Ernesto William De Luca, Daniele Quercia, Matthias Böhmer (2014). 4th Workshop on Context-Awareness in Retrieval and Recommendation. Advances in Information Retrieval.

Alan Said, Jimmy Lin, Alejandro Bellogin, Arjen de Vries (2013). A month in the life of a production news recommender system. Proceedings of the 2013 workshop on Living labs for information retrieval evaluation - LivingLab ‘13.

Alejandro Bellogin, Pablo Castells, Alan Said, Domonkos Tikk (2013). Workshop on reproducibility and replication in recommender systems evaluation. Proceedings of the 7th ACM conference on Recommender systems - RecSys ‘13.

Martha Larson, Alan Said, Yue Shi, Paolo Cremonesi, Domonkos Tikk, Alexandros Karatzoglou, Linas Baltrunas, Jozef Geurts, Xavi Anguera, Frank Hopfgartner (2013). Activating the Crowd: Exploiting User-Item Reciprocity for Recommendation. CrowdRec’13: Proceedings of the International Workshop on Crowdsourcing and Human Computation for Recommender Systems.

Alan Said, Alejandro Bellogín Kouki, Arjen de Vries (2013). A Top-N Recommender System Evaluation Protocol Inspired by Deployed Systems. ACM RecSys Workshop on Large-Scale Recommender Systems.

Pablo Castells, Frank Hopfgartner, Alan Said, Mounia Lalmas (2013). Workshop on benchmarking adaptive retrieval and recommender systems. Proceedings of the 36th international ACM SIGIR conference on Research and development in information retrieval - SIGIR ‘13.

Alan Said (2013). Evaluating the Accuracy and Utility of Recommender Systems.

Alan Said, Ben Fields, Brijnesh J. Jain, Sahin Albayrak (2013). User-centric evaluation of a K-furthest neighbor collaborative filtering recommender. Proceedings of the 2013 conference on Computer supported cooperative work - CSCW ‘13.

M. Böhmer, E.W. De Luca, Alan Said, J. Teevan (2013). The 3rd workshop on context-awareness in retrieval and recommendation (CaRR 2013). ACM International Conference Proceeding Series.

Pablo Castells, Frank Hopfgartner, Alan Said, Mounia Lalmas (2013). Report on the SIGIR 2013 workshop on benchmarking adaptive retrieval and recommender. ACM SIGIR Forum.

Alan Said, Alejandro Bellogin, Arjen de Vries (2013). News Recommendation in the Wild: CWI's Recommendation Algorithms in the NRS type: publication profile: false Challenge. Proceedings of the 2013 International News Recommender Systems Workshop and Challenge.

Alan Said, S. Berkovsky, E.W. De Luca (2013). Introduction to special section on CAMRa2010: Movie recommendation in context. ACM Transactions on Intelligent Systems and Technology.

Alan Said, A. Bellogín, A. De Vries, B. Kille (2013). Information retrieval and user-centric recommender system evaluation. Late-Breaking Results, Project Papers and Workshop Proceedings of the 21st Conference on User Modeling, Adaptation, and Personalization.

A Bellogín, G Gebremeskel, J H, J Lin, A Said, T Samar, AP de Vries, JBP Vuurens (2013). CWI and TU Delft notebook TREC 2013: Contextual suggestion, federated web type: publication profile: false search, KBA, and web tracks. Proceedings of the 22 nd TREC conference, 2013.

Alan Said, S. Albayrak, B.J. Jain (2013). A 3D approach to recommender system evaluation. Proceedings of the ACM Conference on Computer Supported Cooperative Work, CSCW.

M. Böhmer, E.W. De Luca, Alan Said, J. Teevan (2013). 3rd Workshop on context-awareness in retrieval and recommendation. WSDM 2013 - Proceedings of the 6th ACM International Conference on Web Search and Data Mining.

Alan Said, Benjamin Kille, Brijnesh J Jain, Sahin Albayrak (2012). Increasing Diversity Through Furthest Neighbor-Based Recommendation. Proceedings of the WSDM Workshop on Diversity in Document Retrieval.

Alan Said, B.J. Jain, S. Narr, T. Plumbaum (2012). Users and noise: The magic barrier of recommender systems. User Modeling, Adaptation, and Personalization. UMAP 2012.

Alan Said, D. Tikk, A. Hotho (2012). The challenge of recommender systems challenges. RecSys'12 - Proceedings of the 6th ACM Conference on Recommender Systems.

E.W. De Luca, M. Böhmer, Alan Said, E.H. Chi (2012). The 2nd Workshop on Context-awareness in Retrieval and Recommendation (CaRR 2012). Workshop on Context-awareness in Retrieval and Recommendation (CaRR 2012).

C. Scheel, Alan Said, S. Albayrak (2012). Semantic preference retrieval for querying knowledge bases. Joint International Workshop on Entity-Oriented and Semantic Search.

Alan Said, D. Tikk, Y. Shi, M. Larson, K. Stumpf, P. Cremonesi (2012). Recommender systems evaluation: A 3D benchmark. CEUR Workshop Proceedings.

N. Manouselis, J. Hermanns, Alan Said, B. Kille, D. Tikk, H. Drachsler, K. Verbert, K. Jack (2012). Recommender systems challenge 2012. RecSys'12 - Proceedings of the 6th ACM Conference on Recommender Systems.

Alan Said, E.W. De Luca, B. Kille, B. Jain, I. Micus, S. Albayrak (2012). KMulE: A framework for user-based comparison of recommender algorithms. International Conference on Intelligent User Interfaces, Proceedings IUI.

Alan Said, B.J. Jain, S. Narr, T. Plumbaum, S. Albayrak, C. Scheel (2012). Estimating the magic barrier of recommender systems: A user study. SIGIR'12 - Proceedings of the International ACM SIGIR Conference on Research and Development in Information Retrieval.

Alan Said, B.J. Jain, A. Lommatzsch, S. Albayrak (2012). Correlating perception-oriented aspects in user-centric recommender system. IIiX 2012 - Proceedings 4th Information Interaction in Context Symposium: Behaviors, Interactions, Interfaces, Systems.

Alan Said, B.J. Jain, S. Albayrak (2012). Analyzing weighting schemes in collaborative filtering: Cold start, post cold type: publication profile: false start and power users. Proceedings of the ACM Symposium on Applied Computing.

E.W. De Luca, M. Böhmer, Alan Said, E. Chi (2012). 2nd workshop on context-awareness in retrieval and recommendation. International Conference on Intelligent User Interfaces, Proceedings IUI.

Alan Said, Benjamin Kille, Ernesto W. De Luca, Sahin Albayrak (2011). Personalizing tags. Proceedings of the 2nd International Workshop on Information Heterogeneity and Fusion in Recommender Systems - HetRec ‘11.

Alan Said, Ernesto W. De Luca, Sahin Albayrak (2011). Inferring Contextual User Profiles - Improving Recommender Performance. Proceedings of the 3rd Workshop on Context-Aware Recommender Systems.

Alan Said, Shlomo Berkovsky, Ernesto William De Luca, Jannis Hermanns (2011). Challenge on context-aware movie recommendation. Proceedings of the fifth ACM conference on Recommender systems - RecSys ‘11.

Alan Said (2011). Using Social and Pseudo-Social Networks for Improved Recommendation Quality. Proceedings of the Workshop on Intelligent Techniques For Web Personalization & Recommender Systems (ITWP'11).

Ernesto William De Luca, Alan Said, Matthias Böhmer, Florian Michahelles (2011). Workshop on context-awareness in retrieval and recommendation. Proceedings of the 15th international conference on Intelligent user interfaces - IUI ‘11.

E. De Luca, Alan Said, M. Böhmer, F. Michahelles (2011). The workshop on context-awareness in Retrieval and Recommendation (CaRR 2011). ACM International Conference Proceeding Series.

Alan Said, S. Berkovsky, E. De Luca, J. Hermanns (2011). The challenge on Context-Aware Movie Recommendation (CAMRa2011). ACM International Conference Proceeding Series.

Alan Said, S. Berkovsky, E.W. De Luca (2011). Group recommendation in context. ACM International Conference Proceeding Series.

Alan Said, Till Plumbaum, Ernesto W. De Luca, Sahin Albayrak (2011). A Comparison of How Demographic Data Affects Recommendation. Adjunct Proceedings of the 2011 Conference on User Modelling, Adaptation and Personalization (UMAP ‘11).

Alan Said, Jérôme Kunegis, Ernesto W. De Luca, Sahin Albayrak (2010). Exploiting hierarchical tags for context-awareness. Proceedings of the third workshop on Exploiting semantic annotations in information retrieval - ESAIR ‘10.

Alan Said, Shlomo Berkovsky, Ernesto W. De Luca (2010). Putting things in context. Proceedings of the Workshop on Context-Aware Movie Recommendation - CAMRa ‘10.

Alan Said (2010). Identifying and utilizing contextual data in hybrid recommender systems. Proceedings of the fourth ACM conference on Recommender systems - RecSys ‘10.

Gediminas Adomavicius, Alexander Tuzhilin, Shlomo Berkovsky, Ernesto W. De Luca, Alan Said (2010). Context-awareness in recommender systems. Proceedings of the fourth ACM conference on Recommender systems - RecSys ‘10.

Jérôme Kunegis, Alan Said, Winfried Umbrath (2010). The Universal Recommender. arXiv.

S. Berkovsky, E. De Luca, Alan Said (2010). The challenge on context-aware movie recommendation (CAMRa2010). ACM International Conference Proceeding Series.

Alan Said, E.W. De Luca, S. Albayrak (2010). How social relationships affect user similarities. Proceedings of the Social Recommender Systems Workshop (SRS2010).

Robert Wetzker, Alan Said, Carsten Zimmermann (2009). Understanding the user: personomy translation for tag recommendation. Proceedings of the 2009th International Conference on ECML PKDD Discovery Challenge - Volume 497.

Robert Wetzker, Winfried Umbrath, Alan Said (2009). A hybrid approach to item recommendation in folksonomies. Proceedings of the WSDM ‘09 Workshop on Exploiting Semantic Annotations in Information Retrieval.

Alan Said, Robert Wetzker, Winfried Umbrath, Leonhard Hennig (2009). A hybrid PLSA approach for warmer cold start in folksonomy recommendation. RecSys'09 Workshop on Recommender Systems and the Social Web.