Document (#19796)

Author

Muddamalle, M.R.

Title

Natural language versus controlled vocabulary in information retrieval : a case study in soil mechanics

Source

Journal of the American Society for Information Science. 49(1998) no.10, S.881-887

Year

1998

Abstract

The effectiveness ot two information retrieval tools, namely, thesaurus and natural language, in an information retrieval system has been studies. A database SOILSC was created using a HP3000/58 series minicomputer and MINISIS software. Records of articles totalling 17.918 published in various journals, received in the Central Water and Power Research Station (CWPRS) library (Pune, India) since 1988, have been stored. The information needs of a soil mechanics group have been formulated using thesaurus and natural language into 81 search strategies. In consultation with the user, relevance of the retrieved documents was assessed and, recall (R) and precision (P) values were calculated. Since both thesaurus and natural language have shown identical performance in information retrieval, a combination of these two have been suggested for making searches and providing relevant information

Theme

Volltextretrieval

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