期刊
ELECTRONIC NOTES IN THEORETICAL COMPUTER SCIENCE
卷 157, 期 3, 页码 131-142出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.entcs.2005.09.036
关键词
Metadata assertions; trustworthiness; community-wide trust
资金
- European Union [IST-2002-507591]
- Italian MIUR
Metadata produced by members of a diverse community of peers tend to contain low-quality or even mutually inconsistent assertions. Trust values computed on the basis of users' feedback can improve metadata quality and reduce inconsistency, eliminating untrustworthy assertions. In this paper, we describe an approach to metadata creation and improvement, where community members express their opinions on the trustworthiness of each assertion. Our technique aggregates individual trustworthiness values to obtain a community-wide assessment of each assertion. We then apply a global trustworthiness threshold to eliminate some assertions to reduce the metadatabase's overall inconsistency.
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