Compression and an IR Approach to XML Retrieval
نویسندگان
چکیده
A two-phase evaluation scheme is proposed for XML retrieval. In the first phase, a modified vector space model is employed to obtain similarity scores for the textual nodes of XML trees. In the second stage, the scores are propagated upward in the XML trees, with scores of the textual nodes being modified and scores of other nodes being generated. As a result, while a vector space ranking is used, the final scores computed do not truly reflect the vector space scores. In addition to the two-phase evaluation, an integrated compressed file system is proposed for both storing and retrieving XML documents. This leads to an efficient representation of XML repositories.
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