English, Article edition: UTILIZING LOCAL CONTEXT FOR EFFECTIVE INFORMATION RETRIEVAL TANVEER J. SIDDIQUI; UMA SHANKER TIWARY

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Bookmark: http://trove.nla.gov.au/version/36638
Physical Description
  • article
Language
  • English

Edition details

Title
  • UTILIZING LOCAL CONTEXT FOR EFFECTIVE INFORMATION RETRIEVAL
Author
  • TANVEER J. SIDDIQUI
  • UMA SHANKER TIWARY
Physical Description
  • article
Notes
  • Our research focuses on the use of local context through relation matching to improve retrieval effectiveness. An information retrieval (IR) model that integrates relation and keyword matching has been used in this work. The model takes advantage of any existing relational similarity between documents and query to improve retrieval effectiveness. It gives high rank to a document in which the query concepts are involved in similar relationships as in the query, as compared to those in which they are related differently. A conceptual graph (CG) representation has been used to capture relationship between concepts. A simplified form of graph matching has been used to keep our model computationally tractable. Structural variations have been captured during matching through simple heuristics. Four different CG similarity measures have been proposed and used to evaluate performance of our model. We observed a maximum improvement of 7.37% in precision with the second CG similarity measure. The document collection used in this study is CACM-3204. CG similarity measure proposed by us is simple, flexible and scalable and can find application in many IR related tasks like information filtering, information extraction, question answering, document summarization, etc.
  • Information retrieval, relation matching, conceptual graph similarity measure, intelligent retrieval
  • RePEc:wsi:ijitdm:v:07:y:2008:i:01:p:5-21
Language
  • English
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