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http://dx.doi.org/10.9717/kmms.2011.14.2.269

A Tuning Algorithm for the Multidimensional Type Inheritance Index of XML Databases  

Lee, Jong-Hak (대구가툴릭대학교 컴퓨터정보통신공학부)
Publication Information
Journal of Korea Multimedia Society / v.14, no.2, 2011 , pp. 269-281 More about this Journal
Abstract
For the MD-TIX(multidimensional type inheritance index) that supports query processing for the type inheritance concept in XML databases, this paper presents an index tuning algorithm that enhances the performance of the XML query processing according to the query pattern. The MD-TIX uses a multidimensional index structure to support complex XML queries involving both nested elements and type inheritance hierarchies. In this index tuning algorithm, we first determine a shape of index page regions by using the query information about the user's query pattern, and then construct an optimal MD-TIX by applying a region splitting strategy that makes the shape of the page regions into the predetermined one. The performance evaluation results indicate that the proposed tuning algorithm builds an optimal MD-TIX by a given query pattern, and in the case of the three-dimensional query regions for the nested predicates of path length 2, the performance is much enhanced according to the skewed degree of the query region's shape.
Keywords
XML Database; XML Schema; XML Index;
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Times Cited By KSCI : 1  (Citation Analysis)
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