Search (7 results, page 1 of 1)

  • × type_ss:"m"
  • × author_ss:"Lancaster, F.W."
  1. Lancaster, F.W.: Vocabulary control for information retrieval (1986) 0.02
    0.020522129 = product of:
      0.061566383 = sum of:
        0.037908252 = weight(_text_:und in 217) [ClassicSimilarity], result of:
          0.037908252 = score(doc=217,freq=8.0), product of:
            0.09675359 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.043654136 = queryNorm
            0.39180204 = fieldWeight in 217, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0625 = fieldNorm(doc=217)
        0.02365813 = product of:
          0.04731626 = sum of:
            0.04731626 = weight(_text_:22 in 217) [ClassicSimilarity], result of:
              0.04731626 = score(doc=217,freq=2.0), product of:
                0.15286934 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043654136 = queryNorm
                0.30952093 = fieldWeight in 217, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=217)
          0.5 = coord(1/2)
      0.33333334 = coord(2/6)
    
    Classification
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    Date
    22. 4.2007 10:07:51
    RVK
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
  2. Lancaster, F.W.: Libraries and librarians in an age of electronics (1982) 0.00
    0.0029747437 = product of:
      0.017848462 = sum of:
        0.017848462 = weight(_text_:in in 6184) [ClassicSimilarity], result of:
          0.017848462 = score(doc=6184,freq=2.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.30057663 = fieldWeight in 6184, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.15625 = fieldNorm(doc=6184)
      0.16666667 = coord(1/6)
    
  3. Lancaster, F.W.: Indexing and abstracting in theory and practice (2003) 0.00
    0.0025241538 = product of:
      0.015144923 = sum of:
        0.015144923 = weight(_text_:in in 4913) [ClassicSimilarity], result of:
          0.015144923 = score(doc=4913,freq=16.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.25504774 = fieldWeight in 4913, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.046875 = fieldNorm(doc=4913)
      0.16666667 = coord(1/6)
    
    Content
    Covers: indexing principles and practice; precoordinate indexes; consistency and quality of indexing; types and functions of abstracts; writing an abstract; evaluation theory and practice; approaches used in indexing and abstracting services; indexing enhancement; natural language in information retrieval; indexing and abstracting of imaginative works; databases of images and sound; automatic indexing and abstracting; the future of indexing and abstracting services
    Footnote
    Rez. in: JASIST 57(2006) no.1, S.144-145 (H. Saggion): "... This volume is a very valuable source of information for not only students and professionals in library and information science but also for individuals and institutions involved in knowledge management and organization activities. Because of its broad coverage of the information science topic, teachers will find the contents of this book useful for courses in the areas of information technology, digital as well as traditional libraries, and information science in general."
  4. Lancaster, F.W.: Indexing and abstracting in theory and practice (1991) 0.00
    0.0020823204 = product of:
      0.012493922 = sum of:
        0.012493922 = weight(_text_:in in 752) [ClassicSimilarity], result of:
          0.012493922 = score(doc=752,freq=8.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.21040362 = fieldWeight in 752, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0546875 = fieldNorm(doc=752)
      0.16666667 = coord(1/6)
    
    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
  5. Lancaster, F.W.; Warner, A.: Intelligent technologies in library and information service applications (2001) 0.00
    0.0020609628 = product of:
      0.012365777 = sum of:
        0.012365777 = weight(_text_:in in 308) [ClassicSimilarity], result of:
          0.012365777 = score(doc=308,freq=24.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.2082456 = fieldWeight in 308, product of:
              4.8989797 = tf(freq=24.0), with freq of:
                24.0 = termFreq=24.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.03125 = fieldNorm(doc=308)
      0.16666667 = coord(1/6)
    
    Footnote
    Rez. in: JASIST 53(2002) no.4, S.321-322 (I. Fourie): "A substantial literature exists on artificial intelligence (AI) and expert systems in general, as well as in Library and Information Science (LIS). Many reports are over-confident and grossly exaggerate the power and potential of artificial intelligence (AI). This is especially true of the first phase of At, and to some extent also of the third phase that is stimulated by developments surrounding the Internet. The middle phase was mostly marked by disillusionment about the potential of Al and expert systems. The confusion around the promises made by AI and the lack of operational success, leaves managers of library and information services with the dilemma of distinguishing between worthwhile research reporting on operational projects and projects that exists only on paper or in the researchers' heads. It is very difficult to sieve between the two when working through the subject literature, and to distinguish between working technology/applications and wishful thinking. This might be one reason why working systems are sometimes ignored. According to Lancaster and Warner, library managers must also look much wider than the LIS literature to note new trends; this can, however, become a daunting task. Against this background the authors report on a study conducted with the support of the Special Libraries Association's Steven I. Goldspiel Memorial Research Grant. The objective of the study was to gain sufficient familiarity with the developments in Al and related technologies to make recommendations to the information service community on what can be applied, and what to expect in the near future. The intention therefore was to focus on systems that are actually operational, and systems that hold potential for the future. Since digital libraries seems an inevitable part of our future, applications concerning them features strongly in the final recommendations. The scope of AI in Library and Information Science depends on the interpretation of the concepts artificial intelligence and expert systems. "If a system has to `behave intelligently' (e.g. make inferences or learn from its mistakes) to qualify as having AI, few such systems exist in any application. On the other hand, if one accepts that a system exhibits AI if its does things that humans need intelligence to do, many more systems would qualify" (p. 107). One example is the field of subject indexing. The same would apply if a more relaxed definition of expert systems is applied as a system that "can help the non-expert perform some task at a level closer to that of an expert, whether or not all the essential components are in place" (p. 107). Most of the AI literature relevant to libraries falls in the field of expert systems. Lancaster and Warner identify (p. 6) expert systems as " a branch of artificial intelligence, even though very few expert systems exhibit true intelligence.""
  6. Lancaster, F.W.: Indexing and abstracting in theory and practice (1998) 0.00
    0.0017848461 = product of:
      0.010709076 = sum of:
        0.010709076 = weight(_text_:in in 4141) [ClassicSimilarity], result of:
          0.010709076 = score(doc=4141,freq=8.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.18034597 = fieldWeight in 4141, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.046875 = fieldNorm(doc=4141)
      0.16666667 = coord(1/6)
    
    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
    Footnote
    Rez. in: JASIS 50(1999) no.8, S.728-730 (J.-E. Mai); Indexer 21(1999) no.3, S.148 (P.F. Booth); Managing information 6(1999) no.1, S.48 (S.T. Clarke); Electronic library 17(1999) no.3, S.193 (F. Parry)
  7. Lancaster, F.W.; Warner, A.J.: Information retrieval today (1993) 0.00
    0.0014873719 = product of:
      0.008924231 = sum of:
        0.008924231 = weight(_text_:in in 4607) [ClassicSimilarity], result of:
          0.008924231 = score(doc=4607,freq=2.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.15028831 = fieldWeight in 4607, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.078125 = fieldNorm(doc=4607)
      0.16666667 = coord(1/6)
    
    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)