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P. Knees, Y. Deldjoo, F. Bakhshandegan Moghaddam, J. Adamczak, G. Leyson, P. Monreal:
"RecSys Challenge 2019: Session-Based Hotel Recommendations";
Poster: 13th ACM Conference on Recommender Systems, Copenhagen, Denmark; 16.09.2019 - 20.09.2019; in: "Proceedings of the 13th ACM Conference on Recommender Systems", ACM, New York, NY, USA (2019), ISBN: 9781450362436; S. 570 - 571.

The workshop features presentations of accepted contributions to the RecSys Challenge 2019 organized by trivago, TU Wien, Politecnico di Bari, and Karlsruhe Institute of Technology. In the challenge, which originates from the domain of online travel recommender systems, participants had to build a click-prediction model based on user session interactions. Predictions were submitted in the form of a list of suggested accommodations and evaluated on an offline data set that contained the information what accommodation was clicked in the later part of a session. The data set contains anonymized information about almost 16 million session interactions of over 700.000 users visiting the trivago website.
The challenge was well received with 1509 teams that signed up and 607 teams teams that submitted a valid solution. 3452 solutions were submitted during the course of the challenge.

recommender systems; challenge; travel meta-search; session-based; context-aware; accommodation recommendation; benchmark

http://dx.doi.org/10.1145/3298689.3346974

https://doi.org/10.1145/3298689.3346974