Querying Structured Hyperdocuments

In this paper, we present a document model which integrates the logical structure and hypertext link structure of hyperdocuments in order to manage structured documents with hypertext links. Based on this model we de ne a new structure query language which expresses the structure query using path expressions. To process a structure query in a document management system which represents structure information as database relations, costly join operations are used to nd a relationship between elements in a document hierarchy. In order to overcome this problem, schemes based on the parse tree 6] and element locator 2] have been used. In this paper, we propose a new structure query processing scheme that uses unique element identi ers (UID's) to evaluate structure queries. Our scheme has advantage over previous schemes since it can obtain the UID's of the ancestors and descendents directly from the UID of a node without disk access. We present relational database schemas for our ...

• Type: Conference
• Year: 1996
• Where: HICSS
• Authors: Yong Kyu Lee, Seong-Joon Yoo, Kyoungro Yoon, P. Bruce Berra
• Keywords: Biometrics, HICSS 1996, Structure Query, Structure Query Language, Structure Query Processing