Document (#18612)

Author

Miller, D.

Title

Identical in appearance but not in actuality : headings shared by a subject-access and a form/genre access authority list

Source

Library resources and technical services. 41(1997) no.3, S.190-204

Year

1997

Abstract

Authority records were compared for established headings that are identical in LCSH (18th ed.) and Moving Image Materials (MIM). The Use For, Broader Term, Narrower Term, and Related Term references in the LCSH authority file were compared with their counterparts in MIM, to determine the proportion of duplication existing between them. Fewer that 10% of these reference headings are identical. A qualitative comparison was made of the 'semantic spaces' inhibited by identical headings in different contexts: a general purpose subject access list is compared with a medium specific form and genre access list. It was found that, in many cases, headings that are identical as character strings have markedly differnt meanings in different contexts. The conclusion offered is that, both quantitatively and qualitatively, pairs of identical headings differ sufficiently from each other that the creation of authority records for each usage represents no duplication in any meaningful sense. The striking divergence, in many instances, between semantic spaces poses intellectual questions regarding the differences between the meaning of subjects and of forms and genres

Form

Filme
Videos

Object

LCSH

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5. Newsom, C.; Lundgren, J.; Poehlmann, N.: Genre terms for chemistry and engineering : not just for literature anymore (2008) 0.17

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