Preface to the joint proceedings of the ComplexRec and ImpactRS workshops at ACM RecSys 2020

Toine Bogers, Marijn Koolen, Casper Petersen, Bamshad Mobasher, Alexander Tuzhilin, Oren Sar Shalom, Dietmar Jannach, Joseph A. Konstan

Research output: Contribution to journalConference articlepeer-review


Recommender systems are widely used in modern online applications, from e-commerce sites over media streaming services to social networks. In academic research, we however often abstract from the specifics of these applications and rely on simplified assumptions such as the availability of past rating data. Furthermore, we mostly focus on predicting to what extent a user will like a certain item, but do not explicitly consider the long-term effects of recommendations on the users' decision-making processes or the expected impact on orgnizations. The 14th ACM Conference on Recommender Systems hosted two workshops which aim to look beyond our often too simplifying assumptions, the Fourth Workshop on Recommendation in Complex Environments and the Second Workshop on the Impact of Recommender Systems. These proceedings describe the specific goals of the workshops and contain the papers that were presented during the online events.

Original languageEnglish
JournalCEUR Workshop Proceedings
StatePublished - 2020
Externally publishedYes
Event2020 Workshops on Recommendation in Complex Scenarios and the Impact of Recommender Systems, ComplexRec-ImpactRS 2020 - Virtual, Online
Duration: 25 Sep 2020 → …

Bibliographical note

Publisher Copyright:
© 2020 Copyright for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).


  • Proceedings
  • Recommender Systems
  • Workshop


Dive into the research topics of 'Preface to the joint proceedings of the ComplexRec and ImpactRS workshops at ACM RecSys 2020'. Together they form a unique fingerprint.

Cite this