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Abstract Replacement Strategies for XQuery Caching Systems
| Citations: | 4 - 1 self |
BibTeX
@MISC{Chen_abstractreplacement,
author = {Li Chen and Song Wang and Elke A. Rundensteiner},
title = {Abstract Replacement Strategies for XQuery Caching Systems},
year = {}
}
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Abstract
To improve the query performance over XML documents in a distributed environment, we develop a semantic caching system named ACE-XQ for XQuery queries. ACE-XQ applies innovative query containment and rewriting techniques to answer user queries using cached queries. We also design a fine-grained replacement strategy which records user access statistics at a finer granularity than the complete XML query regions. As a result, less frequently used XML view fragments are replaced to maintain a better utilization of the cache space. Extensive experimental results illustrate the performance improvement achieved by this strategy over the traditional one for a variety of situations.
Keyphrases
xquery caching system abstract replacement strategy finer granularity cache space traditional one extensive experimental result ace-xq applies innovative query containment semantic caching system cached query xquery query fine-grained replacement strategy user query complete xml query region xml document access statistic performance improvement xml view fragment query performance distributed environment
