FIX: Feature-based Indexing Technique for XML Documents

  title={FIX: Feature-based Indexing Technique for XML Documents},
  author={Ning Zhang and M. Tamer {\"O}zsu and Ihab F. Ilyas and Ashraf Aboulnaga},
Indexing large XML databases is crucial for efficient evaluation of XML twig queries. In this paper, we propose a feature-based indexing technique, called FIX, based on spectral graph theory. The basic idea is that for each twig pattern in a collection of XML documents, we calculate a vector of features based on its structural properties. These features are used as keys for the patterns and stored in a B+tree. Given an XPath query, its feature vector is first calculated and looked up in the… CONTINUE READING
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