-
Klugman, S.: Failures in subject retrieval (1989)
0.06
0.062378716 = product of:
0.31189358 = sum of:
0.31189358 = weight(_text_:r.p in 2285) [ClassicSimilarity], result of:
0.31189358 = score(doc=2285,freq=2.0), product of:
0.27057314 = queryWeight, product of:
6.5207376 = idf(docFreq=176, maxDocs=44218)
0.041494254 = queryNorm
1.1527145 = fieldWeight in 2285, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.5207376 = idf(docFreq=176, maxDocs=44218)
0.125 = fieldNorm(doc=2285)
0.2 = coord(1/5)
- Source
- Subject control in online catalogs. Ed.: R.P. Holley
-
Carlyle, A.: Matching LSCH and user vocabulary in the library catalog (1989)
0.05
0.04678404 = product of:
0.23392019 = sum of:
0.23392019 = weight(_text_:r.p in 347) [ClassicSimilarity], result of:
0.23392019 = score(doc=347,freq=2.0), product of:
0.27057314 = queryWeight, product of:
6.5207376 = idf(docFreq=176, maxDocs=44218)
0.041494254 = queryNorm
0.86453587 = fieldWeight in 347, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.5207376 = idf(docFreq=176, maxDocs=44218)
0.09375 = fieldNorm(doc=347)
0.2 = coord(1/5)
- Source
- Subject control in online catalogs. Ed.: R.P. Holley
-
Besant, L.: Early survey findings: users of public online catalogs want sophisticated subject access (1982)
0.01
0.011588076 = product of:
0.05794038 = sum of:
0.05794038 = product of:
0.11588076 = sum of:
0.11588076 = weight(_text_:l in 501) [ClassicSimilarity], result of:
0.11588076 = score(doc=501,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.70262593 = fieldWeight in 501, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.125 = fieldNorm(doc=501)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Benutzung von Katalogen und Freihandbeständen in deutschen Universalbibliotheken : Bd.1: Ergebnisse einer empirischen Untersuchung von Benutzer-Recherchen. Vorgelegt von D. Fischer-Knappe ... Bd.2: Einige Ergebnisse in bibliothekarischer Interpretation. Vorgelegt von J. Stoltzenburg u. K.W. Neubauer. - Bd.3: Methoden- und Dokumentationsband. Vorgelegt von P. Helfen u. B. Laufer (1984)
0.01
0.0097322045 = product of:
0.048661023 = sum of:
0.048661023 = weight(_text_:u in 1526) [ClassicSimilarity], result of:
0.048661023 = score(doc=1526,freq=4.0), product of:
0.13587062 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041494254 = queryNorm
0.35814235 = fieldWeight in 1526, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=1526)
0.2 = coord(1/5)
-
Saracevic, T.; Kantor, P.; Chamis, A.Y.: ¬A study of information seeking and retrieving : pt.1: Background and methodology (1988)
0.01
0.0058986065 = product of:
0.029493032 = sum of:
0.029493032 = weight(_text_:u in 1963) [ClassicSimilarity], result of:
0.029493032 = score(doc=1963,freq=2.0), product of:
0.13587062 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041494254 = queryNorm
0.21706703 = fieldWeight in 1963, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=1963)
0.2 = coord(1/5)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. Sam Francisco: Morgan Kaufmann 1997. S.175-190.
-
Blackshaw, L.; Fischhoff, B.: Decision making in online searching (1988)
0.01
0.005794038 = product of:
0.02897019 = sum of:
0.02897019 = product of:
0.05794038 = sum of:
0.05794038 = weight(_text_:l in 647) [ClassicSimilarity], result of:
0.05794038 = score(doc=647,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.35131297 = fieldWeight in 647, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0625 = fieldNorm(doc=647)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988)
0.00
0.003935329 = product of:
0.019676646 = sum of:
0.019676646 = product of:
0.039353292 = sum of:
0.039353292 = weight(_text_:22 in 760) [ClassicSimilarity], result of:
0.039353292 = score(doc=760,freq=2.0), product of:
0.14530581 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.041494254 = queryNorm
0.2708308 = fieldWeight in 760, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=760)
0.5 = coord(1/2)
0.2 = coord(1/5)
- Abstract
- The degree of variability in the percentage of subject searching in an online public access catalog (OPAC) among branch libraries of one university was studied. A full semester's worth of transactions was analyzed, not sampled. The time units used were hour of the day, day of the week, and week of the semester. The findings show that subject searching varies from a low of 22% to a high of 74% over the hours of a day. Variability for the days of the week ranged from 17% to 64%, and for the weeks of the semester variability ranged from 12% to 70%. Valuable management information on the utilization of the OPAC within each brach library and among all the branch libraries is provided through numerous charts and graphs.
