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Abstract

Describes CLASTHES, a software package which structures a system of concepts defined both as the conceptual expression of the structural relationship of a whole and as the structural relationship between the individual elements within the system itself. The external structure, which is the general structure of the system, is created by means of thesaurus facets, here defined as 'areas', while the internal structure is represented by the relationships linking the single elements attributed to the various areas

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Abstract

Both classification systems and thesauri have their specific strengths and weaknesses. Through properly combining both approaches one can eliminate the latter and largely preserve the strenghts. 'Classauri' which originate in this well-known way are most effective if they are constructed and applied during computer-aided indexing. A special variety of classaurus is described which is characterized by the employment of simple bur highly effective conceptual and technical devices and by the renunciation of attempts to generate the wording of index entries algorithmically

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Abstract

Examines a method of converting assigned UDC numbers into subject headings. The method consists of 2 phases: a dictionary is created that maps UDC numbers to subject headings; and this dictionary is then mechanically applied to convert the bibliographic databases. Tests 15 different UDC classes and records translation success and problems encountered. Closely examines problems encountered in each part and describes 3 main types of UDC classes: the synthetic; the shallow enumerative; and the deep enumerative. Findings show that the time spent in the first phase is tolerable. Considers the initial question of translatability of the whole UDC in the light of the results

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Footnote

Rez. in: Indexer 20(1996) no.2, S.108 (A. McCarthy); Journal of librarianship and information science 29(1997) no.3, S.165-166 (A. Gilchrist)

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Abstract

Considers some structural features of UDC which may be of some importance to on-line information retrieval with synthesised UDC notations