For inquiries and questions, please contact mors.workshop@gmail.com

We encourage submissions that address the challenges related to having multiple objectives or multiple stakeholders in recommender systems. The topics of interest for the workshop include, but are not limited to:

• Recommender systems with multiple objectives

• Balancing the long-term impacts of the recommendations and the users' short-term preferences

• Reinforcement Learning for long-term optimization in recommender systems

• Feedback loops and the impact of recommendations in long term

• Value-aware recommendation (profit, value, purpose, etc.)

• Multistakeholder recommender systems

• Conflict handling in multi-stakeholder recommendation

• Fairness-aware recommender systems

Submissions that are related to long-term optimization of recommender systems (e.g., long-term user satisfaction) are highly encouraged.

Paper Submission Guidelines (please read carefully):

All submissions must be written in English. We will consider two different submission types:

• Long papers (12-15 pages excluding references in the ACM single-column format) should report on substantial contributions of lasting value. Each accepted long paper will also be allocated a presentation slot during the workshop. We expect the review process to be highly selective.

• Short papers (5-8 pages excluding references in the ACM single-column format) typically discuss exciting new work that is not yet mature enough for a long paper. In particular, novel but significant proposals will be considered for acceptance into this category despite not having gone through sufficient experimental validation or lacking a strong theoretical foundation. Depending on the number of submissions, short papers may be either presented as oral talks or as posters. Note that rejected long paper submissions will not be considered for short papers.

All authors should submit manuscripts for review in a single-column format. Instructions for Word and LaTeX authors are given below:

• Microsoft Word: Write your paper using the Submission Template (https://www.acm.org/binaries/content/assets/publications/taps/acm_submission_template.docx). Follow the embedded instructions to apply the paragraph styles to your various text elements. The text is in single-column format at this stage and no additional formatting is required at this point.

• LaTeX: Please use the latest version of the Master Article Template – LaTeX (https://www.acm.org/binaries/content/assets/publications/consolidated-tex-template/acmart-master.zip) to create your submission. You must use the “manuscript” option with the \documentclass[manuscript]{acmart} command to generate the output in a single-column format which is required for review. Please see the LaTeX documentation (https://www.acm.org/binaries/content/assets/publications/consolidated-tex-template/acmart.pdf) and ACM’s LaTeX best practices guide (https://www.acm.org/publications/taps/latex-best-practices) for further instructions.

The review process will be single-blind, so please make sure to have the author's names and affiliation in your submission. Each paper will receive two to three reviews from the program committee, according to reviewers' expertise.

Important dates

• Paper submission deadline: August 5, 2022 (23:59 AoE time zone)

• Notification of paper acceptance: August 27, 2022

• Camera-ready version deadline: September 5th, 2022 (23:59 AoE time zone)

• Workshop date (at RecSys 2022): TBA