Abstract
Since the evaluation of XPath expressions is highly dependent upon their size and navigational structures that include ancestor-descendant relationships (“//”) and wildcard steps (“/∗”), we introduce a novel and complementary approach to optimizing XPath queries by rewriting and minimizing such structural occurrences. This rewriting approach depends upon the existence of a statistical schema, which we derive from a set of pre-processed XML documents. However, an imprecision in the schema extraction may lead to a loss of accuracy in the results. Through experimentation and analysis, we validate the scalability and efficiency of our approach.
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© 2005 Springer-Verlag Berlin Heidelberg
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Bashir, E., Boulos, J. (2005). Relaxing Result Accuracy for Performance in Publish/Subscribe Systems. In: Ngu, A.H.H., Kitsuregawa, M., Neuhold, E.J., Chung, JY., Sheng, Q.Z. (eds) Web Information Systems Engineering – WISE 2005. WISE 2005. Lecture Notes in Computer Science, vol 3806. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11581062_47
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DOI: https://doi.org/10.1007/11581062_47
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-30017-5
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