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Atlanta, GA, USA
April 3, 2006 to April 7, 2006
ISBN: 0-7695-2570-9
pp: 52
Steven Bird , University of Pennsylvania
Yi Chen , Arizona State University
Susan B. Davidson , University of Pennsylvania
Haejoong Lee , University of Pennsylvania
Yifeng Zheng , University of Pennsylvania
Linguistic research and natural language processing employ large repositories of ordered trees. XML, a standard ordered tree model, and XPath, its associated language, are natural choices for linguistic data and queries. However, several important expressive features required for linguistic queries are missing or hard to express in XPath. In this paper, we motivate and illustrate these features with a variety of linguistic queries. Then we propose extensions to XPath to support linguistic queries, and design an efficient query engine based on a novel labeling scheme. Experiments demonstrate that our language is not only sufficiently expressive for linguistic trees but also efficient for practical usage.
Steven Bird, Yi Chen, Susan B. Davidson, Haejoong Lee, Yifeng Zheng, "Designing and Evaluating an XPath Dialect for Linguistic Queries", ICDE, 2006, 22nd International Conference on Data Engineering, 22nd International Conference on Data Engineering 2006, pp. 52, doi:10.1109/ICDE.2006.48
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