A coherent query language for XML
Krishnaprasad Thirunarayan1
and Trivikram Immaneni1 
| (1) |
Metadata and Languages Laboratory Department of Computer Science and Engineering, Wright State University, Dayton, OH 45435, USA |
Received: 22 May 2007 Revised: 28 October 2007 Accepted: 14 November 2007 Published online: 4 March 2008
Abstract Text search engines are inadequate for indexing and searching XML documents because they ignore metadata and aggregation structure
implicit in the XML documents. On the other hand, the query languages supported by specialized XML search engines are very
complex. In this paper, we present a simple yet flexible query language, and develop its semantics to enable intuitively appealing
extraction of relevant fragments of information while simultaneously falling back on
retrieval through plain text search if necessary. Our approach combines and generalizes several available techniques to obtain precise
and coherent results.
Keywords Query languages - XML/RDF - Information search and retrieval - Indexing and search
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