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Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961) 0.00

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Footnote: Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.223-246.
Source: American documentation. 20(1969), S.119-142

Lancaster, F.W.: Evaluation within the environment of an operating information service (1981) 0.00

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Pages: S.105-127

Lancaster, F.W.; Connell, T.H.; Bishop, N.; McCowan, S.: Identifying barriers to effective subject access in library catalogs (1991) 0.00
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Abstract

51 subject searches were performed in an online catalog containing about 4,5 million records. Their success was judges in terms of lists of items, known to be relevant to the various topics, compiled by subject specialists (faculty members or authors of articles in specialized encyclopedias). Many of the items known to be relevant were not retrieved, even in very broad searches that sometimes retrieved several hundred records, and very little could be done to make them retrievable within the constraints of present cataloging practice. Librarians should recognize that library catalogs, as now implemented, offer only the most primitive of subject access and should seek to develop different types of subject access tools. - Vgl auch Letter (B.H. Weinberg) in: LTRS 36(1992) S.123-124.

Source

Library resources and technical services. 35(1991), S.377-391

Lancaster, F.W.: On the need for role indicators in postcoordinate retrieval systems (1968) 0.00

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Source: American documentation. 19(1968), S.42-46

Lancaster, F.W.: Evaluating the performance of a large computerized information system (1985) 0.00

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Footnote: Original in: Journal of the American Medical Association 207(1969) S.114-120.
Pages: S.326-339

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