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  • × author_ss:"Chartron, G."
  • × language_ss:"f"
  1. Chartron, G.; Dalbin, S.; Monteil, M.-G.; Verillon, M.: Indexation manuelle et indexation automatique : dépasser les oppositions (1989) 0.00 
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    Abstract
    Report of a study comparing 2 methods of indexing: LEXINET, a computerised system for indexing titles and summaries only; and manual indexing of full texts, using the thesaurus developed by French Electricity (EDF). Both systems were applied to a collection of approximately 2.000 documents on artifical intelligence from the EDF data base. The results were then analysed to compare quantitative performance (number and range of terms) and qualitative performance (ambiguity of terms, specificity, variability, consistency). Overall, neither system proved ideal: LEXINET was deficient as regards lack of accessibility and excessive ambiguity; while the manual system gave rise to an over-wide variation of terms. The ideal system would appear to be a combination of automatic and manual systems, on the evidence produced here.
    Type
    a
  2. Collas, D.; Chartron, G.: Logique conceptuelle et récherche d'information (1994) 0.00 
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    Abstract
    Demonstrates how the efficiency of online searching can be increased the application of conceptual logic; which consists of making systematically explicit all the notional, semantic, and cognitive elements contained in the subject to be searched. Unlike a thesaurus, which has been designed for the most probable, multiple uses, conceptual logic makes it possible to access information through means fully adapted to specific uses. Examples are presented from the TOPIC information retrieval software
    Type
    a

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