NDLI: Topic diversity in tag recommendation

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Topic diversity in tag recommendation

Content Provider	ACM Digital Library
Author	Santos, Rodrygo Belém, Fabiano Gonçalves, Marcos Almeida, Jussara
Abstract	Tag recommendation approaches have historically focused on maximizing the relevance of the recommended tags for a given object, such as a movie or a song. Nevertheless, different users may be interested in the same object for different reasons---for instance, the Star Wars movies may appeal to both adventure as well as to fantasy movie fans. In this situation, a sensible strategy is to provide a user with diverse recommendations of how to tag the object. In this paper, we address the problem of recommending relevant and diverse tags as a ranking problem. In particular, we propose a novel tag recommendation approach that explicitly takes into account the possible topics (e.g., categories) underlying an object in order to promote tags with high coverage and low redundancy with respect to these topics. We thoroughly evaluate our proposed approach using data collected from two popular Web 2.0 applications, namely, LastFM and MovieLens. Our experimental results attest the effectiveness of our approach at promoting more relevant and diverse tags in contrast to state-of-the-art relevance-based methods as well as a recently proposed method that takes both relevance and diversity into account.
Starting Page	141
Ending Page	148
Page Count	8
File Format	PDF
ISBN	9781450324090
DOI	10.1145/2507157.2507184
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-10-12
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Relevance Tag recommendation Diversity
Content Type	Text
Resource Type	Article

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