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|Title:||On boosting hollsm in XML twig pattern matching using structural indexing techniques|
|Authors:||Chen, T. |
|Source:||Chen, T.,Lu, J.,Ling, T.W. (2005). On boosting hollsm in XML twig pattern matching using structural indexing techniques. Proceedings of the ACM SIGMOD International Conference on Management of Data : 455-466. ScholarBank@NUS Repository.|
|Abstract:||Searching for all occurrences of a twig pattern in an XML document is an important operation in XML query processing. Recently a holistic method TwigStack  has been proposed. The method avoids generating large intermediate results which do not contribute to the final answer and is CPU and I/O optimal when twig patterns only have ancestor-descendant relationships. Another important direction of XML query processing is to build structural indexes     over XML documents to avoid unnecessary scanning of source documents. We regard XML structural indexing as a technique to partition XML documents and call it streaming scheme in our paper. In this paper we develop a method to perform holistic twig pattern matching on XML documents partitioned using various streaming schemes. Our method avoids unnecessary scanning of irrelevant portion of XML documents. More importantly, depending on different streaming schemes used, it can process a large class of twig patterns consisting of both ancestor-descendant and parent-child relationships and avoid generating redundant intermediate results. Our experiments demonstrate the applicability and the performance advantages of our approach. Copyright 2005 ACM.|
|Source Title:||Proceedings of the ACM SIGMOD International Conference on Management of Data|
|Appears in Collections:||Staff Publications|
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