Title
Stream-Based Recommendations: Online and Offline Evaluation as a Service
Abstract
Providing high-quality news recommendations is a challenging task because the set of potentially relevant news items changes continuously, the relevance of news highly depends on the context, and there are tight time constraints for computing recommendations. The CLEF NewsREEL challenge is a campaign-style evaluation lab allowing participants to evaluate and optimize news recommender algorithms online and offline. In this paper, we discuss the objectives and challenges of the NewsREEL lab. We motivate the metrics used for benchmarking the recommender algorithms and explain the challenge dataset. In addition, we introduce the evaluation framework that we have developed. The framework makes possible the reproducible evaluation of recommender algorithms for stream data, taking into account recommender precision as well as the technical complexity of the recommender algorithms.
Year
DOI
Venue
2015
10.1007/978-3-319-24027-5_48
Cross-Language Evaluation Forum
Keywords
Field
DocType
Recommender systems,News,Evaluation,Living lab,Stream-based recommender
Recommender system,World Wide Web,Information retrieval,Computer science,Stream data,Online and offline,Living lab,Clef,Benchmarking
Conference
Volume
ISSN
Citations 
9283
0302-9743
8
PageRank 
References 
Authors
0.58
23
8
Name
Order
Citations
PageRank
benjamin kille19213.56
Andreas Lommatzsch247940.83
Roberto Turrin385934.94
András Serény4383.25
Martha Larson51661116.07
Torben Brodt6917.22
Jonas Seiler7353.18
Frank Hopfgartner853557.69