2015 | OriginalPaper | Buchkapitel
Tag-Based Paper Retrieval: Minimizing User Effort with Diversity Awareness
verfasst von : Quoc Viet Hung Nguyen, Son Thanh Do, Thanh Tam Nguyen, Karl Aberer
Erschienen in: Database Systems for Advanced Applications
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As the number of scientific papers getting published is likely to soar, most of modern paper management systems (e.g. ScienceWise, Mendeley, CiteULike) support tag-based retrieval. In that, each paper is associated with a set of
tags
, allowing user to search for relevant papers by formulating tag-based queries against the system. One of the most critical issues in tag-based retrieval is that user often has difficulties in precisely formulating his information need. Addressing this issue, our paper tackles the problem of automatically suggesting new tags for user when he formulates a query. The set of tags are selected in such a way that resolves query ambiguity in two aspects:
informativeness
and
diversity
. While the former reduces user effort in finding the desired papers, the latter enhances the variety of information shown to user. Through studying theoretical properties of this problem, we propose a heuristic-based algorithm with several salient performance guarantees. We also demonstrate the efficiency of our approach through extensive experimentation using real-world datasets.