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"ACM SIGCHI General Interest Announcements (Mailing List)" <[log in to unmask]>
Mon, 29 May 2017 20:32:20 +0000
Toine Bogers <[log in to unmask]>
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Toine Bogers <[log in to unmask]>
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RecSys'17 Workshop on Recommendation in Complex Scenarios (ComplexRec 2017)
Como, Italy
August 31, 2017


Important dates

* Paper submission deadline: June 6, 2017 (before midnight, anywhere on Earth)
* Notification of acceptance: July 9, 2017
* Camera-ready deadline: July 18, 2017
* RecSys 2017: August 31, 2017

Description & Objectives

Over the past decade, recommendation algorithms for ratings prediction and item ranking have steadily matured. However, these state-of-the-art algorithms are typically applied in relatively straightforward scenarios. 

In reality, recommendation is often a more complex problem: it is usually just a single step in the user's more complex background need. These background needs can often place a variety of constraints on which recommendations are interesting to the user and when they are appropriate. 

However, relatively little research has been done on these complex recommendation scenarios. The ComplexRec 2017 workshop aims to address this by providing an interactive venue for discussing approaches to recommendation in complex scenarios that have no simple one-size-fits-all solution.

Topics of interest

We invite original contributions about recommendation in complex scenarios. Topics of interest include, but are not limited to, the following:

* Task-based recommendation -- Approaches that take the user's background tasks and needs into account when generating recommendations

* Feature-driven recommendation -- Techniques for eliciting, capturing and integrating rich information about user preferences for specific product features

* Constraint-based recommendation -- Approaches that successfully combine state-of-the-art recommendation algorithms with complex knowledge-based or constraint-based optimization

* Query-driven recommendation -- Techniques for eliciting and incorporating rich information about the user's recommendation need (e.g., need for accessibility, engagement, socio-cultural values, familiarity, etc.) in addition to the standard user preference information

* Interactive recommendation -- Techniques for successfully capturing, weighting, and integrating continuous user feedback into recommender systems, both in situations of sparse and rich user interaction

* Context-aware recommendation -- Methods for the extraction and integration of complex contextual signals for recommendation
* Complex data sources -- Approaches to dealing with complex data sources and how to infer user preferences from these sources

* Evaluation & validation -- Approaches to the evaluation and validation of recommendation in complex scenarios


We encourage authors to submit short papers and position papers of 2-4 pages in length dedicated to any aspect of recommendation in complex scenarios.

Accepted submissions will then be invited for short 10-minute presentations with equal time for discussion. Evaluation criteria for acceptance will include novelty, diversity, significance for theory/practice, quality of presentation, and the potential for sparking interesting discussion at the workshop. All submitted papers will be reviewed by the Program Committee. At least one author of each accepted paper must attend the workshop.

All submissions should be in English and should not have been published or submitted for publication elsewhere. Papers should be formatted in the ACM Proceedings Style ( and submitted via EasyChair ( Submissions will be published in the workshop proceedings (CEUR-WS).


* Toine Bogers ([log in to unmask]), Aalborg University Copenhagen, Denmark
* Marijn Koolen ([log in to unmask]), Huygens Institute, the Netherlands
* Bamshad Mobasher ([log in to unmask]), DePaul University, USA
* Alan Said ([log in to unmask]), University of Skövde, Sweden
* Alexander Tuzhilin ([log in to unmask]), NYU Stern School of Business, USA

For further questions, please contact a member of the organizing committee.

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