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Fuzzy XML queries via context-based choice of aggregations. (English) Zbl 1249.68059
Summary: A flexible query model is presented for semi-structured information stored in well-formed XML documents, modeled as XML fuzzy graphs by computing estimates of the importance of the information associated to XML elements and attributes. The notion of fuzzy graph closure with threshold is then used to obtain a fuzzy extension of the topological structure of XML fuzzy graphs. Weights associated to closure arcs are computed as a conjunction of the importance values of the underlying arcs in the original graph, via a context-based choice of conjunctions. Query results are subgraphs of the resulting fuzzy closure graph, presented as a ranked list according to their degree of matching to the user query.

MSC:
68P20 Information storage and retrieval of data
68T37 Reasoning under uncertainty in the context of artificial intelligence
Software:
Quilt
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References:
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