-
Lancaster, F.W.: Vocabulary control for information retrieval (1986)
0.03
0.030496247 = product of:
0.060992494 = sum of:
0.060992494 = sum of:
0.005362507 = weight(_text_:s in 217) [ClassicSimilarity], result of:
0.005362507 = score(doc=217,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.09609913 = fieldWeight in 217, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0625 = fieldNorm(doc=217)
0.055629987 = weight(_text_:22 in 217) [ClassicSimilarity], result of:
0.055629987 = score(doc=217,freq=2.0), product of:
0.17972933 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05132441 = 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)
- Date
- 22. 4.2007 10:07:51
- Pages
- XVII,270 S
-
Lancaster, F.W.; Warner, A.J.: Information retrieval today (1993)
0.00
0.0029025425 = product of:
0.005805085 = sum of:
0.005805085 = product of:
0.01161017 = sum of:
0.01161017 = weight(_text_:s in 4607) [ClassicSimilarity], result of:
0.01161017 = score(doc=4607,freq=6.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.20806074 = fieldWeight in 4607, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.078125 = fieldNorm(doc=4607)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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)
- Pages
- XVIII,341 S
-
Lancaster, F.W.: Indexing and abstracting in theory and practice (1991)
0.00
0.00287337 = product of:
0.00574674 = sum of:
0.00574674 = product of:
0.01149348 = sum of:
0.01149348 = weight(_text_:s in 752) [ClassicSimilarity], result of:
0.01149348 = score(doc=752,freq=12.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.2059696 = fieldWeight in 752, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=752)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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
- Pages
- XIV,328 S
-
Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961)
0.00
0.002843899 = product of:
0.005687798 = sum of:
0.005687798 = product of:
0.011375596 = sum of:
0.011375596 = weight(_text_:s in 1931) [ClassicSimilarity], result of:
0.011375596 = score(doc=1931,freq=4.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.20385705 = fieldWeight in 1931, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.09375 = fieldNorm(doc=1931)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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.; Zeter, M.J.; Metzler, L.: Ranganathan's influence examined bibliometrically (1992)
0.00
0.0026812535 = product of:
0.005362507 = sum of:
0.005362507 = product of:
0.010725014 = sum of:
0.010725014 = weight(_text_:s in 1379) [ClassicSimilarity], result of:
0.010725014 = score(doc=1379,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.19219826 = fieldWeight in 1379, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.125 = fieldNorm(doc=1379)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Libri. 42(1992) no.3, S.268-281
-
Lancaster, F.W.: Vocabulary control in information retrieval systems (1977)
0.00
0.0026812535 = product of:
0.005362507 = sum of:
0.005362507 = product of:
0.010725014 = sum of:
0.010725014 = weight(_text_:s in 1774) [ClassicSimilarity], result of:
0.010725014 = score(doc=1774,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.19219826 = fieldWeight in 1774, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.125 = fieldNorm(doc=1774)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Advances in librarianship. 7(1977), S.1-40
-
Lancaster, F.W.; Mills, J.: Testing indexes and index language devices : the ASLIB Cranfield project (1964)
0.00
0.0026812535 = product of:
0.005362507 = sum of:
0.005362507 = product of:
0.010725014 = sum of:
0.010725014 = weight(_text_:s in 2261) [ClassicSimilarity], result of:
0.010725014 = score(doc=2261,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.19219826 = fieldWeight in 2261, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.125 = fieldNorm(doc=2261)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- American documentation. 15(1964), S.4-13
-
Lancaster, F.W.; Gillespie, C.J.: Design and evaluation of information systems (1970)
0.00
0.0026812535 = product of:
0.005362507 = sum of:
0.005362507 = product of:
0.010725014 = sum of:
0.010725014 = weight(_text_:s in 243) [ClassicSimilarity], result of:
0.010725014 = score(doc=243,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.19219826 = fieldWeight in 243, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.125 = fieldNorm(doc=243)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Annual review of information science and technology. 5(1970), S.33-70
-
Lancaster, F.W.; Elliker, C.; Connell, T.H.: Subject analysis (1989)
0.00
0.0026812535 = product of:
0.005362507 = sum of:
0.005362507 = product of:
0.010725014 = sum of:
0.010725014 = weight(_text_:s in 338) [ClassicSimilarity], result of:
0.010725014 = score(doc=338,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.19219826 = fieldWeight in 338, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.125 = fieldNorm(doc=338)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Annual review of information science and technology. 24(1989), S.35-84
-
Lancaster, F.W.; Li, J.: ¬The law of constant accessibility of information (1988/89)
0.00
0.0023460968 = product of:
0.0046921936 = sum of:
0.0046921936 = product of:
0.009384387 = sum of:
0.009384387 = weight(_text_:s in 1565) [ClassicSimilarity], result of:
0.009384387 = score(doc=1565,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.16817348 = fieldWeight in 1565, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=1565)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Bulletin of the American Society for Information Science. 15(1988/89), S.24-25
-
Lancaster, F.W.: Evaluation of expert systems in information service applications (1994)
0.00
0.0023460968 = product of:
0.0046921936 = sum of:
0.0046921936 = product of:
0.009384387 = sum of:
0.009384387 = weight(_text_:s in 8905) [ClassicSimilarity], result of:
0.009384387 = score(doc=8905,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.16817348 = fieldWeight in 8905, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=8905)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S. -
-
Lancaster, F.W.: Evaluation within the environment of an operating information service (1981)
0.00
0.0023460968 = product of:
0.0046921936 = sum of:
0.0046921936 = product of:
0.009384387 = sum of:
0.009384387 = weight(_text_:s in 3150) [ClassicSimilarity], result of:
0.009384387 = score(doc=3150,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.16817348 = fieldWeight in 3150, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=3150)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.105-127
-
Pinto, M.; Lancaster, F.W.: Abstracts and abstracting in knowledge discovery (1999)
0.00
0.0023460968 = product of:
0.0046921936 = sum of:
0.0046921936 = product of:
0.009384387 = sum of:
0.009384387 = weight(_text_:s in 6233) [ClassicSimilarity], result of:
0.009384387 = score(doc=6233,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.16817348 = fieldWeight in 6233, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=6233)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Library trends. 48(1999) no.1, S.234-248
-
Lancaster, F.W.: Indexing and abstracting in theory and practice (1998)
0.00
0.0022482995 = product of:
0.004496599 = sum of:
0.004496599 = product of:
0.008993198 = sum of:
0.008993198 = weight(_text_:s in 4141) [ClassicSimilarity], result of:
0.008993198 = score(doc=4141,freq=10.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.16116315 = fieldWeight in 4141, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=4141)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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)
- Pages
- XIII,412 S
-
Lancaster, F.W.; Connell, T.H.; Bishop, N.; McCowan, S.: Identifying barriers to effective subject access in library catalogs (1991)
0.00
0.0020317796 = product of:
0.004063559 = sum of:
0.004063559 = product of:
0.008127118 = sum of:
0.008127118 = weight(_text_:s in 2259) [ClassicSimilarity], result of:
0.008127118 = score(doc=2259,freq=6.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.14564252 = fieldWeight in 2259, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=2259)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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.: ¬The evolution of electronic publishing (1995)
0.00
0.00201094 = product of:
0.00402188 = sum of:
0.00402188 = product of:
0.00804376 = sum of:
0.00804376 = weight(_text_:s in 2446) [ClassicSimilarity], result of:
0.00804376 = score(doc=2446,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.14414869 = fieldWeight in 2446, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.09375 = fieldNorm(doc=2446)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Library trends. 43(1995) no.4, S.518-527
-
Lancaster, F.W.: Do indexing and abstracting have a future? (2003)
0.00
0.00201094 = product of:
0.00402188 = sum of:
0.00402188 = product of:
0.00804376 = sum of:
0.00804376 = weight(_text_:s in 3761) [ClassicSimilarity], result of:
0.00804376 = score(doc=3761,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.14414869 = fieldWeight in 3761, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.09375 = fieldNorm(doc=3761)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Anales de documentación. 6(2003), S.277-288
-
Lancaster, F.W.: Librarians, technology and mediocrity (1993)
0.00
0.0018959326 = product of:
0.0037918652 = sum of:
0.0037918652 = product of:
0.0075837304 = sum of:
0.0075837304 = weight(_text_:s in 7006) [ClassicSimilarity], result of:
0.0075837304 = score(doc=7006,freq=4.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.1359047 = fieldWeight in 7006, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0625 = fieldNorm(doc=7006)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.99-113
- 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
-
Lancaster, F.W.: Electronic publishing (1989)
0.00
0.0016757835 = product of:
0.003351567 = sum of:
0.003351567 = product of:
0.006703134 = sum of:
0.006703134 = weight(_text_:s in 2881) [ClassicSimilarity], result of:
0.006703134 = score(doc=2881,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.120123915 = fieldWeight in 2881, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.078125 = fieldNorm(doc=2881)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Library trends. 37(1989) no.3, S.316-325
-
Lancaster, F.W.; Ulvila, J.W.; Humphrey, S.M.; Smith, L.C.; Allen, B.; Herner, S.: Evaluation of interactive knowledge-based systems : overview and design for empirical testing (1996)
0.00
0.0016589412 = product of:
0.0033178823 = sum of:
0.0033178823 = product of:
0.0066357646 = sum of:
0.0066357646 = weight(_text_:s in 3000) [ClassicSimilarity], result of:
0.0066357646 = score(doc=3000,freq=4.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.118916616 = fieldWeight in 3000, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=3000)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 47(1996) no.1, S.57-69