Adding Flexibility to Structure Similarity Queries on XML Data

  • Authors:

  • Paolo Ciaccia;Wilma Penzo

  • Affiliations:

  • -;-

  • Venue:
  • FQAS '02 Proceedings of the 5th International Conference on Flexible Query Answering Systems
  • Year:
  • 2002

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Abstract

The presence of structure inside XML documents poses the hard challenge of providing flexible query matching methods for effective retrieval of results. In this paper we present an approach that faces this issue in a twofold fashion: 1) it exploits new approximations on data structure; 2) it provides a relevance ranking method that takes into account the degree of correctness and completeness of results with respect to a given query, as well as the degree of cohesion of data retrieved.