Structured information retrieval in XML documents

摘要: Query languages that take advantage of the XML document structure already exist. However, systems have been developed to query data explore sources from a database perspective. This paper examines an collection viewpoint Information Retrieval (IR). As such, we view documents as text with additional tags and attempt adapt existing IR techniques achieve more sophisticated search on documents. We employ class queries support path expressions suggest efficient index, which extends inverted file is accomplished by integrating in combining index. The proposed lexicographical may be used for evaluation involve expressions. Moreover, this discusses ranking scheme based both term distribution structure. Some performance remarks are also presented.