Indexing Documents for Queries on Structure, Content and Attributes

作者：Ron Sacks‐Davis, Tuong Dao, James A. Thom, Justin Zobel · 年份：1997 · 被引用次数：23 · 研究领域：Hermeneutics and Narrative Identity、Aging, Elder Care, and Social Issues、Health, Medicine and Society

Indexing and retrieval techniques for large text databases are well developed, but most of the techniques developed to date assume that the text to be indexed has little or no structure. With the growth in the use of sophisticated markup languages for text, a database system for structured documents should use, not just document content, but structural information and attributes, and should support queries on content, structure and attributes. In this paper we review and compare two recent approaches for accessing document collections. For one of the approaches, position-based indexing, queries are resolved by manipulating ranges of word o sets while for the other, based on a path model, the position of a word is represented in terms of the structural components that enclose it. The former allows slightly smaller indexes; the latter allows more efficient query evaluation.