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SEMANTIC SEARCH SYSTEM USING SEMANTIC RANKING SCHEME

  • US 20110202526A1
  • Filed: 02/12/2010
  • Published: 08/18/2011
  • Est. Priority Date: 02/12/2010
  • Status: Active Grant
First Claim
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1. A semantic search system using a semantic ranking scheme comprising:

  • an ontology analyzer analyzing ontology data related to a search target to determine a weight value of each property according to a weighing method for property;

    a semantic path extractor extracting all the semantic paths between resources and query keywords and determining a weight value of each extracted semantic path according to the semantic path weight value determination scheme by using the weight value of each property;

    a relevant resource searcher traversing an instance graph of ontology based on a semantic path having a pre-set length and weight value of more than an expectation level to search resources that have a semantic relationship with the query keywords and are declared as a type presented in the query; and

    a semantic relevance ranker selecting a top-k results having the highest rank from among the candidate results extracted by the relevant resource researcher by using a relevance scoring function.

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