Psychology-informed Recommender Systems Tutorial

Elisabeth Lex, Markus Schedl

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Recommender systems are essential tools to support human decision-making in online information spaces. Many state-of-the-art recommender systems adopt advanced machine learning techniques to model and predict user preferences from behavioral data. While such systems can provide useful and effective recommendations, their algorithmic design commonly neglects underlying psychological mechanisms that shape user preferences and behavior. In this tutorial, we offer a comprehensive review of the state of the art and progress in psychology-informed recommender systems, i.e., recommender systems that incorporate human cognitive processes, personality, and affective cues into recommendation models, along with definitions, strengths and weaknesses. We show how such systems can improve the recommendation process in a user-centric fashion. With this tutorial, we aim to stimulate more ideas and discussion with the audience on core issues of this topic such as the identification of suitable psychological models, availability of datasets, or the suitability of existing performance metrics to evaluate the efficacy of psychology-informed recommender systems. Besides, we present takeaways to recommender systems practitioners how to build psychology-informed recommender systems. Previous versions of this tutorial were presented, among others, at The ACM Web Conference 2022 and the ACM SIGIR Conference on Human Information Interaction and Retrieval (CHIIR) 2022.

Original languageEnglish
Title of host publicationRecSys 2022 - Proceedings of the 16th ACM Conference on Recommender Systems
PublisherAssociation of Computing Machinery
Number of pages4
ISBN (Electronic)9781450392785
Publication statusPublished - 12 Sep 2022
Event16th ACM Conference on Recommender Systems: RecSys 2022 - Seattle, United States
Duration: 18 Sep 202223 Sep 2022


Workshop16th ACM Conference on Recommender Systems
Abbreviated titleRecSys 2022
Country/TerritoryUnited States


  • affect
  • cognitive models
  • emotion
  • human decision-making
  • personality
  • recommender systems

ASJC Scopus subject areas

  • Hardware and Architecture
  • Software


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