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  • × author_ss:"Lancaster, F.W."
  1. Lancaster, F.W.: Artificial intelligence, expert systems and the digital library (1996) 0.00 
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    Abstract
    Based partly on chapters in a forthcoming book 'Technology and Management in Library and Information Sciences' by F.W. Lancaster and B. Sandore. Some inportant functions of a research library operating largely in a networked digital environment are illustrated. The ability of artificial intelligence and expert system technologies to contribute to these functions is discussed, in the light of a report from the American Association for Artificial Intelligence, as well as experiences with these technologies in the library world and elsewhere
    Source
    Journal of information; communication; and library science. 3(1996) no.2, S.3-14
  2. Lancaster, F.W.: Searching databases on CD-ROM : comparison of the results of end-user searching with results from two modes of searching by skilled intermediaries (1994) 0.00 
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    Abstract
    The results of 35 searches performed by users (end users) of an academic library (Illinois Stae University, Milner Library) in the ERIC databases on CD-ROM were compared with the results for the same topics achieved by an experienced education librarian and by a team of librarians. Recall ratios, precision ratios, and novelty ratios were calculated. Results show that the users, all faculty members or graduate students, found only about a third of the really important items. Suggests that library users are frequently misled into thinking that CD-ROM databases are easy to use and that the 'technology' guarantees satisfactory results.
  3. Elzy, C.; Nourie, A.; Lancaster, F.W.; Joseph, K.M.: Evaluating reference service in a large academic library (1991) 0.00 
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    Abstract
    Reports an unobtrusive study of the ability of professional librarians to deal with factual questions conducted at the Milner Library, Illinois State University. Standards were recruited to pose questions for which answers were known, to 19 librarians in 5 departments. In all, 190 test incidents (10 questions for each of the 19 librarians) were used. Librarians were evaluated on the accuracy of the responses given and on their responsiveness and helpfulness, as judged by the student proxies. Describes the methods used in the study, including the accuracy and attitude scales developed, presents the major results, and makes suggestions on the follow-up action that seems appropriate after a study of this kind has been performed
  4. Lancaster, F.W.: Trends in subject indexing from 1957 to 2000 (1980) 0.00 
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    Abstract
    Computer have been used in 2 areas of printed index production: to sort entries and fromat printed indexes, and to derive a series of index entries from a minimum intellectual input. Computer indexing enables more indexing terms to be used as well as weighted terms, links and roles. Interest in automatic indexing peaked in the mid-1960s and has since declined. Interest in machine-aided indexing concentrates on using the computer for on-line display or for indexing by extraction. Computers have also made possible the implementation of retrieval systems without indexing-free text systems. Considers future prospects and needs
    Source
    New trends in documentation and information: proceedings of the 39th FID Congress, University of Edinburgh, 25-28 Sept 1978. Ed.: P.J. Taylor
  5. Lancaster, F.W.: Indexing and abstracting in theory and practice (1991) 0.00 
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    Content
    Enthält folgende Kapitel: Pre-coordinate indexes; consistency of indexing: quality of indexing; abstracts: types and functions, writing the abstract, natural language in information retrieval, automatic indexing. There are exercises in both indexing and abstracting procedures
    Footnote
    Rez. in: Library and information science resaerch 14(1992) no.1, S.117-118 (C. Tenopir); International classification 19(1992) no.4, S.227-228 (R. Fugmann); Journal of the American Society for Information Science 43(1992) no.6, S.456 (B.R. Boyce); Cataloging & classification quarterly 15(1992) no.1, S.245-247 (E.M. Rasmussen) Journal of academic librarianship 18(1992) no.1, S.39 (G.A. Crawford) // Winner of the 1992 ASIS best information science book award
  6. Su, S.-F.; Lancaster, F.W.: Evaluation of expert systems in reference service applications (1995) 0.00 
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    Abstract
    Reports results of an evaluation of 2 expert systems designed for use in library reference services: ReferenceExpert (RE), developed by Houston University; and SourceFinder (SF), developed by Illinois University at Urbana-Champaign. The test group consisted of 60 graduate students at the initial stage of an intermediate level reference course. The evaluation involved test questions already used in an earlier study (College and research libraries 52(1991) no.5, S.454-465). Results indicated that: there was no significant difference between RE and SF students in the confidence they expressed regarding understanding of their test questions; no significant correlation was found between confidence in understanding the question and success in selecting appropriate sources; only 1/5 of the students agreed that the system they used could be considered 'intelligent'; the majority did not consider the system they used to be 'competent'; almost half agreed that the subject categories provided by the menus were too broad; a little more than half wer not satisfied with the information sources selected by their system; significantly more RE users than SF users agreed that they found the menu interface useful; and a keyword search capability was the feature most often mentioned as a needed system enhancement. Overall results indicated that current expert systems for the selection of reference sources cannot perform as well as experienced subject oriented reference librarians
  7. Lancaster, F.W.: Evaluation within the environment of an operating information service (1981) 0.00 
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  8. Lancaster, F.W.: Librarians, technology and mediocrity (1993) 0.00 
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    Abstract
    Two years ago the author gave a keynote talk at the Essen Symposium that suggested that technology has lulled librarians into a false sense of security and that there is no real evidence that the increasing use of technology has improved library services at all. This talk carries this theme one stage further, suggesting that technology may actually encourage mediocrity in library and information services
    Source
    Opportunity 2000: understanding and serving users in an electronic library; 15th Int. Symp., 12.-15.10.1992; Festschrift in honour of Herbert S. White. Ed.: A.H. Helal
  9. Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961) 0.00 
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  10. Lancaster, F.W.: Indexing and abstracting in theory and practice (1998) 0.00 
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    Content
    Enthält die Kapitel: Indexing principles, Indexing practice, Precoordinate indexes, Consistency of indexing, Quality of indexing, Abstracts: types and functions, Writing the Abstract, Evaluation aspects, Approaches used in indexing and abstracting services, Enhancing the indexing, On the indexing and abstracting of imaginative works, Indexing multimedia sources, Texte searching, Automatic indexing, automatic abstracting, and related procedures, Indexing and the Internet, The future of indexing and abstracting, exercises in indexing and abstracting
  11. Lancaster, F.W.: Precision and recall (2009) 0.00 
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    Abstract
    F.W. Lancaster's work has been immensely influential in library and information science. He has written on indexing and information system evaluation, and has been looked to as a pioneer in many areas. Here he describes precision and recall, the two most fundamental and widespread measures of information retrieval effectiveness.
    Source
    Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
  12. Xu, H.; Lancaster, F.W.: Redundancy and uniqueness of subject access points in online catalogs (1998) 0.00 
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    Abstract
    Reports results of an analysis of 205 randomly selected records from the OCLC OLUC, to test the assumption that online catalogues have greatly improved subject searching capabilities, over card catalogues, by making other fields in the records searchable as subject access points (SAPs). Results showed considerable overlap (duplication) among the SAPs provided by the title, subject heading and classification number fields. On average, little more than 4 unique, unduplicated access points were found per record. Where title and classification number fields do add some access points not provided by subject headings, the increase is less than many librarians might be expected. Suggests that OPACs might outperform catalogues more in precision than in recall by allowing greater discrimination in searching; terms from different fields may be combined; titles offer greater specifity; searches can be limited by date, language or other criteria
  13. Lancaster, F.W.; Warner, A.J.: Information retrieval today (1993) 0.00 
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    Footnote
    Rez. in: Information processing and management 30(1994) no.4, S.581-582 (L. Schamber); Journal of documentation 51(1995) no.1, S.76-77 (B. Frohmann)

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