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ARIES, PHILIPPE. Un lexique par phrases descriptives. Bulletin de l'A.I.D., vol. 5, no. 4, 1966, p. 99–101.

An automatic indexing method is described in which index tags for documents are generated by the computer. The computer scans the text of periodical articles and automatically assigns to them index terms with their respective weights on the basis of explicitly defined text characteristics. A machine file of document references with their associated index terms is automatically produced which can be searched on a co‐ordinate basis for the retrieval of specified drug‐related information.

A proper noun entry is an index entry for the name of a particular person, place, or thing. While this type of entry is comparatively easy for humans to recognize, it is difficult to define for the purposes of computer processing. The kind and number of proper nouns which appear in a text vary to some extent with the subject matter. The ratio of proper nouns to all other text words may be higher in such subject areas as history and literature than it is, for example, in the sciences. However, in many instances proper nouns constitute a high proportion of index entries in the sciences.

All items listed may be borrowed from the Aslib Library, except those marked, which may be consulted in the Library.

All items listed may be borrowed from the Aslib Library, except those marked *, which may be consulted in the Library.

A rule‐governed derivation of an indexing phrase from the text of a document is, in Wittgenstein's sense, a practice, rather than a mental operation explained by reference to internally represented and tacitly known rules. Some mentalistic proposals for theory in information retrieval are criticised in light of Wittgenstein's remarks on following a rule. The conception of rules as practices shifts the theoretical significance of the social role of retrieval practices from the margins to the centre of enquiry into foundations of information retrieval. The abstracted notion of a cognitive act of ‘information processing’ deflects attention from fruitful directions of research.

Since the second world war, considerable research funds and effort have been spent on developing means for controlling the ever‐increasing flood of recorded knowledge. As far as librarians and information officers are concerned, the problem can be divided up into five distinct stages, as shown in Figure 1.

IThis review has been sponsored by the Office for Scientific and Technical Information and the end product of the complete research will be a thesaurus of management terms. Parallel research in the business management area and also supported by OSTI is being conducted by David Dews, Librarian of the Manchester Business School, and K. D. C. Vernon, Librarian of the London Graduate School of Business Studies. As Mr Vernon is at present engaged in the construction of a faceted classification scheme for management, this investigation has concentrated on the possibility of utilizing faceted techniques to construct such a thesaurus.

All items listed may be borrowed from the Aslib Library, except those marked, which may be consulted in the Library.

All items listed may be borrowed from the Aslib Library, except those marked, which may be consulted in the Library.