ACM SIGCHI General Interest Announcements (Mailing List)


Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Condense Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
text/plain; charset=utf-8
Thu, 7 Mar 2019 13:12:03 +0000
Mark Graus <[log in to unmask]>
"ACM SIGCHI General Interest Announcements (Mailing List)" <[log in to unmask]>
text/plain (60 lines)

In conjunction with the 13th ACM Recommender Systems Conference (RecSys'19), the RecSys Challenge 2019 will be organized by trivago, TU Wien, Politecnico di Milano, and Karlsruhe Institute of Technology. trivago is a global hotel search platform focused on reshaping the way travelers search for and compare hotels, while enabling advertisers of hotels to grow their businesses by providing access to a broad audience of travelers via our websites and apps. trivago has established 55 localized platforms in over 190 countries and provides access to over two million hotels, including alternative accommodations, with prices and availability from over 400+ booking sites and hotel chains.

This year's challenge focuses on travel metasearch. The goal of this challenge is to develop a session-based and context-aware recommender system using various input data to provide a list of accommodations that will match the needs of the user.

In the challenge, participants will be tasked with predicting which accommodations (items) have been clicked in the search result during the last part of a user session in an offline evaluation setup. To this end, trivago will release a public dataset of hotel search sessions.

A detailed description of the challenge will be made available soon (see tentative timeline).


An overview paper will be provided soon to the participants.

Participation and Data

The data for this year's challenge is provided by trivago and can be downloaded from You can access the data once you create an account and agree with the terms and conditions. The information on the challenge participation can also be found on this website.


Note: the timeline is subject to slight modifications.

* March 2019: Dataset Release & RecSys Challenge starts. The data can be downloaded from The website will go live on March 05.
* June 30, 2019: RecSys Challenge ends Final submission due (11:59 PM in the UTC-12:00 time zone).
* July 2019: Announcement of the final leaderboard and winners & Paper submission for RecSys Challenge Workshop
* August 2019: Paper Acceptance Notifications & Camera-ready due for the accepted papers
* September 16-20, 2019: Workshop will take place as part of the ACM RecSys conference in Copenhagen, Denmark.

Challenge Organizers

* Philipp Monreal, trivago, Germany
* Wolfgang Gassler, trivago, Germany
* Jens Adamczak, trivago, Germany
* Gerard Leyson, trivago, Germany
* Peter Knees, TU Wien, Austria
* Yashar Deldjoo, Politecnico di Milano, Italy
* Farshad Bakhshandegan Moghaddam, Karlsruhe Institute of Technology, Germany


* Dávid Zibriczky, DB Schenker, Germany
* Markus Schedl, Johannes Kepler University, Linz, Austria
* Hamed Zamani, University of Massachusetts Amherst, MA, USA
* Mehdi Elahi, Free University of Bozen, Bolzano

    For news of CHI books, courses & software, join CHI-RESOURCES
     mailto: [log in to unmask]

    To unsubscribe from CHI-ANNOUNCEMENTS send an email to
     mailto:[log in to unmask]

    For further details of CHI lists see