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標題Title: Efficient Compression and Querying of XML Repositories
作者Authors: 劉芸如
上傳單位Department: 資訊管理系
上傳時間Date: 2009-11-17
上傳者Author: 劉芸如
審核單位Department: 資訊管理系
審核老師Teacher: 陳志達
檔案類型Categories: 研究生論文報告Thesis
關鍵詞Keyword: Efficient、Querying、XML、Repositories
摘要Abstract: With the rapidly increasing popularity of XML as a data
format, there is a large demand for efficient techniques in
storing and querying XML documents. However XML is by
nature verbose, due to repeatedly used tags that describe
data. For this reason the storage requirements of XML
can be excessive and lead to increased costs for data manipulation.
Therefore, it seems natural to use compression
techniques to increase the efficiency of storing and querying
XML data. In this paper, we propose a new approach called
SCQX for Storing, Compressing and Querying XML documents.
This approach compresses the structure of an XML
document based on exploiting repetitive consecutive tags in
the structure, and then SCQX stores the compressed XML
structure and the data separately in a robust storage structure
that includes a set of access support structures to guarantee
fast query performance. Moreover, SCQX supports
querying of the compressed XML structure directly and efficiently
without requiring decompression. An experimental
evaluation on sets of XML data shows the effectiveness of
our approach.

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2009_11_c252bdd3.ppt 698Kb ppt 341 118
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