Document (#8504)

Author

Silvester, J.P.
Genuardi, M.T.
Klingbiel, P.H.

Title

Machine-aided indexing at NASA

Source

Information processing and management. 30(1994) no.5, S.631-645

Year

1994

Abstract

Describes the NASA Lexical Dictionary (NLD), a machine aided indexing system used online at the NASA Center for AeroSpace Information (CASI). This system automatically suggests a set of candidate terms from NASA's controlled vocabulary for any designated natural language text input. The system is comprised of a text processor that is based on the computational, nonsyntactic analysis of input text and an extensive knowledge base that serves to recognize and translate text-extracted concepts. The functions of the various NLD system components are described in detail, and production and quality benefits resulting from the implementation of machine-aided indexing at CASI are discussed

Theme

Automatisches Indexieren

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