A WOWA-based Aggregation Technique on Trust Values Connected to Metadata

被引：22

作者：

Damiani, Ernesto ^{[1
]}

di Vimercati, Sabrina De Capitani ^{[1
]}

Samarati, Pierangela ^{[1
]}

Viviani, Marco ^{[1
]}

机构：

[1] Univ Milan, Dipartimento Tecnol Informaz, Via Bramante 65, I-26013 Crema, CR, Italy

来源：

ELECTRONIC NOTES IN THEORETICAL COMPUTER SCIENCE | 2006年 / 157卷 / 03期

关键词：

Metadata assertions; trustworthiness; community-wide trust;

D O I：

10.1016/j.entcs.2005.09.036

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

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.

引用

页码：131 / 142

页数：12

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