有效的XML检索结果的相似性度量

相似性度量是聚类等问题中的核心问题.本文研究了XML检索结果的相似性度量,提出了一种新的结构的和内容的XML检索结果相似性度量.首先,在结构方面,提出了两个结构相似性度量:纵向结构相似度和横向结构相似度,它们基于不同的特征集,体现了结构的不同方面的相似度.在内容方面,提出用带有结构的内容模型来描述内容,基于这一内容模型提出了内容相似度.最后进行了实验,在实际数据集和合成数据集上的实验结果都显示,结构相似度和内容相似度都具有很好的准确性.

Effective similarity measure for XML retrieval results

As XML has become a de facto standard for formatting and exchanging data on the web and in digital library and scientific applications,there is an increasing need for managing,clustering and retrieving XML data.XML information retrieval is one of the most active areas in database and information retrieval research.In information retrieval,retrieval results organization is an important aspect and effective technique.For example,results clustering has been studied and proved effective in improving retrieval q...