摘要
多媒体信息检索是根据相似性度量而不是精确匹配技术进行检索的。有效性是测量多媒体检索系统性能的一个主要参数,本文着重介绍了几种常见的有效性度量方法,讨论了各自的优点、缺点和适用性,并给出了一个新的有效性度量方法。
Multimedia information retrieval systems query information by similarity measurement and not by exact matching method, and validity is an important parameter to the retrieval performance. This paper introduces some kinds of validity measurements, and discusses their advantages, disadvantages and applicability. A new validity measurement is also given.
出处
《新世纪图书馆》
2003年第5期25-27,共3页
New Century Library
