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The Scientific World Journal
Volume 2014, Article ID 404518, 10 pages
Research Article

An Exponentiation Method for XML Element Retrieval

Department of Computer Science, Faculty of Science, Kasetsart University, Bangkok 10903, Thailand

Received 8 August 2013; Accepted 5 December 2013; Published 13 February 2014

Academic Editors: J. Shu and F. Yu

Copyright © 2014 Tanakorn Wichaiwong. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


XML document is now widely used for modelling and storing structured documents. The structure is very rich and carries important information about contents and their relationships, for example, e-Commerce. XML data-centric collections require query terms allowing users to specify constraints on the document structure; mapping structure queries and assigning the weight are significant for the set of possibly relevant documents with respect to structural conditions. In this paper, we present an extension to the MEXIR search system that supports the combination of structural and content queries in the form of content-and-structure queries, which we call the Exponentiation function. It has been shown the structural information improve the effectiveness of the search system up to 52.60% over the baseline BM25 at MAP.