A comparative analysis of offline and online evaluations and discussion of research paper recommender system evaluation

Beel, Joeran; Genzmehr, Marcel; Langer, Stefan; Nürnberger, Andreas; Gipp, Bela

A comparative analysis of offline and online evaluations and discussion of research paper recommender system evaluation

Files

Beel_0-285617.pdf(328.95 KB)

Date

2013

Authors

Beel, Joeran

Genzmehr, Marcel

Langer, Stefan

Nürnberger, Andreas

Gipp, Bela

Publication type

Contribution to a conference collection

Published in

Proceedings of the International Workshop on Reproducibility and Replication in Recommender Systems Evaluation / Alejandro Bellogin (ed.). - New York : ACM, 2013. - pp. 7-14. - ISBN 978-1-4503-2465-6

Abstract

Offline evaluations are the most common evaluation method for research paper recommender systems. However, no thorough discussion on the appropriateness of offline evaluations has taken place, despite some voiced criticism. We conducted a study in which we evaluated various recommendation approaches with both offline and online evaluations. We found that results of offline and online evaluations often contradict each other. We discuss this finding in detail and conclude that offline evaluations may be inappropriate for evaluating research paper recommender systems, in many settings.

Subject (DDC)

004 Computer Science

Keywords

Research paper recommender systems, evaluation, offline evaluation, click-through rate, online evaluation, comparative study

Conference

RepSys '13, Oct 12, 2013, Hong Kong

Cite This

ISO 690

BEEL, Joeran, Marcel GENZMEHR, Stefan LANGER, Andreas NÜRNBERGER, Bela GIPP, 2013. A comparative analysis of offline and online evaluations and discussion of research paper recommender system evaluation. RepSys '13. Hong Kong, Oct 12, 2013. In: ALEJANDRO BELLOGIN, , ed.. Proceedings of the International Workshop on Reproducibility and Replication in Recommender Systems Evaluation. New York:ACM, pp. 7-14. ISBN 978-1-4503-2465-6. Available under: doi: 10.1145/2532508.2532511

BibTex

@inproceedings{Beel2013compa-31055,
  year={2013},
  doi={10.1145/2532508.2532511},
  title={A comparative analysis of offline and online evaluations and discussion of research paper recommender system evaluation},
  isbn={978-1-4503-2465-6},
  publisher={ACM},
  address={New York},
  booktitle={Proceedings of the International Workshop on Reproducibility and Replication in Recommender Systems Evaluation},
  pages={7--14},
  editor={Alejandro Bellogin},
  author={Beel, Joeran and Genzmehr, Marcel and Langer, Stefan and Nürnberger, Andreas and Gipp, Bela}
}

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Bibliography of Konstanz

No