Search (46 results, page 1 of 3)

  • × language_ss:"e"
  • × theme_ss:"Benutzerstudien"
  • × year_i:[1980 TO 1990}
  1. Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988) 0.02
    0.01590535 = product of:
      0.0318107 = sum of:
        0.0318107 = product of:
          0.04771605 = sum of:
            0.004195232 = weight(_text_:s in 760) [ClassicSimilarity], result of:
              0.004195232 = score(doc=760,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.08408674 = fieldWeight in 760, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=760)
            0.04352082 = weight(_text_:22 in 760) [ClassicSimilarity], result of:
              0.04352082 = score(doc=760,freq=2.0), product of:
                0.16069375 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045888513 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    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.
    Source
    Information technology and libraries. 7(1988), S.359-372
  2. Ostroff, D.; Shneiderman, B.: Selection devices for user of an electronic encyclopedia : an empirical comparison of four possibilities (1988) 0.01
    0.0064782575 = product of:
      0.012956515 = sum of:
        0.012956515 = product of:
          0.019434772 = sum of:
            0.014640221 = weight(_text_:d in 816) [ClassicSimilarity], result of:
              0.014640221 = score(doc=816,freq=2.0), product of:
                0.0871823 = queryWeight, product of:
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.045888513 = queryNorm
                0.16792654 = fieldWeight in 816, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.0625 = fieldNorm(doc=816)
            0.0047945506 = weight(_text_:s in 816) [ClassicSimilarity], result of:
              0.0047945506 = score(doc=816,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.09609913 = fieldWeight in 816, 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=816)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 24(1988), S.665-680
  3. Senzig, D.: Library catalogs for library users (1984) 0.01
    0.0064782575 = product of:
      0.012956515 = sum of:
        0.012956515 = product of:
          0.019434772 = sum of:
            0.014640221 = weight(_text_:d in 831) [ClassicSimilarity], result of:
              0.014640221 = score(doc=831,freq=2.0), product of:
                0.0871823 = queryWeight, product of:
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.045888513 = queryNorm
                0.16792654 = fieldWeight in 831, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.0625 = fieldNorm(doc=831)
            0.0047945506 = weight(_text_:s in 831) [ClassicSimilarity], result of:
              0.0047945506 = score(doc=831,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.09609913 = fieldWeight in 831, 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=831)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Reference quarterly. 24(1984), S.37-42
  4. Saracevic, T.; Kantor, P.; Chamis, A.Y.: ¬A study of information seeking and retrieving : pt.1: Background and methodology (1988) 0.01
    0.005355185 = product of:
      0.01071037 = sum of:
        0.01071037 = product of:
          0.016065555 = sum of:
            0.010980166 = weight(_text_:d in 1963) [ClassicSimilarity], result of:
              0.010980166 = score(doc=1963,freq=2.0), product of:
                0.0871823 = queryWeight, product of:
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.045888513 = queryNorm
                0.1259449 = fieldWeight in 1963, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1963)
            0.005085389 = weight(_text_:s in 1963) [ClassicSimilarity], result of:
              0.005085389 = score(doc=1963,freq=4.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.101928525 = fieldWeight in 1963, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1963)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Editor
    Trivison, D.
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. Sam Francisco: Morgan Kaufmann 1997. S.175-190.
    Source
    Journal of the American Society for Information Science. 39(1988), S.161-176
  5. Klugman, S.: Failures in subject retrieval (1989) 0.00
    0.002260173 = product of:
      0.004520346 = sum of:
        0.004520346 = product of:
          0.013561037 = sum of:
            0.013561037 = weight(_text_:s in 2285) [ClassicSimilarity], result of:
              0.013561037 = score(doc=2285,freq=4.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.2718094 = fieldWeight in 2285, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.125 = fieldNorm(doc=2285)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Pages
    S.9-35
  6. Gouke, M.N.; Pease, S.: Title searches in an online catalog and a card catalog : a comparative study of patron success in two libraries (1982) 0.00
    0.0019776514 = product of:
      0.0039553028 = sum of:
        0.0039553028 = product of:
          0.011865908 = sum of:
            0.011865908 = weight(_text_:s in 7677) [ClassicSimilarity], result of:
              0.011865908 = score(doc=7677,freq=4.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.23783323 = fieldWeight in 7677, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.109375 = fieldNorm(doc=7677)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Journal of academic librarianship. 8(1982), S.137-143
  7. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.2: users, questions, and effectiveness (1988) 0.00
    0.0016951298 = product of:
      0.0033902596 = sum of:
        0.0033902596 = product of:
          0.010170778 = sum of:
            0.010170778 = weight(_text_:s in 3258) [ClassicSimilarity], result of:
              0.010170778 = score(doc=3258,freq=4.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.20385705 = fieldWeight in 3258, 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=3258)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    s. Abstract von T.1
    Source
    Journal of the American Society for Information Science. 39(1988) no.3, S.177-196
  8. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.3: searchers, searches, and overlap (1988) 0.00
    0.0016951298 = product of:
      0.0033902596 = sum of:
        0.0033902596 = product of:
          0.010170778 = sum of:
            0.010170778 = weight(_text_:s in 3259) [ClassicSimilarity], result of:
              0.010170778 = score(doc=3259,freq=4.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.20385705 = fieldWeight in 3259, 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=3259)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    s. Abstract von T.1
    Source
    Journal of the American Society for Information Science. 39(1988) no.3, S.197-216
  9. Markey, K.: Users and the online catalog : subject access problems (1986) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 342) [ClassicSimilarity], result of:
              0.009589101 = score(doc=342,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 342, 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=342)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Pages
    S.35-69
  10. Moore, C.W.: User reactions to online catalogs : an exploratory study (1981) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 499) [ClassicSimilarity], result of:
              0.009589101 = score(doc=499,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 499, 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=499)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    College and research libraries. 42(1981) no.4, S.295-302
  11. Besant, L.: Early survey findings: users of public online catalogs want sophisticated subject access (1982) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 501) [ClassicSimilarity], result of:
              0.009589101 = score(doc=501,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 501, 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=501)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    American libraries. 13(1982), S.160
  12. Markey, K.: Thus spoke the OPAC user (1983) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 785) [ClassicSimilarity], result of:
              0.009589101 = score(doc=785,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 785, 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=785)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information technology and libraries. 2(1983), S.381-387
  13. Bishop, D.F.: ¬The CLR OPAC study : analysis of ARL user responses (1983) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 1479) [ClassicSimilarity], result of:
              0.009589101 = score(doc=1479,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 1479, 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=1479)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information technology and libraries. 2(1983), S.315-321
  14. Janosky, B.: Online library catalog systems : an analysis of user errors (1986) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 2430) [ClassicSimilarity], result of:
              0.009589101 = score(doc=2430,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 2430, 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=2430)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    International journal of man-machine studies. 25(1986), S.587-
  15. Carson, E.: OPACs: the user and subject access (1985) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 3627) [ClassicSimilarity], result of:
              0.009589101 = score(doc=3627,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 3627, 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=3627)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Canadian library journal. 42(1985), S.65-70
  16. Beheshti, J.: ¬A cross-sectional study of the use of the library books by undergraduate students (1989) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 4487) [ClassicSimilarity], result of:
              0.009589101 = score(doc=4487,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 4487, 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=4487)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 25(1989), S.727-735
  17. Beheshti, J.: ¬A longitudinal study of the use of library books by undergraduate students (1989) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 4488) [ClassicSimilarity], result of:
              0.009589101 = score(doc=4488,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 4488, 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=4488)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 25(1989), S.737-744
  18. Stanke, N.K.: User satisfaction with an online catalog (1987) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 4594) [ClassicSimilarity], result of:
              0.009589101 = score(doc=4594,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 4594, 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=4594)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Iowa library quarterly. 24(1987), S.24-34
  19. Kern-Simirenko, C.: OPAC user logs : implications for bibliographic instruction (1983) 0.00
    0.0015981835 = product of:
      0.003196367 = sum of:
        0.003196367 = product of:
          0.009589101 = sum of:
            0.009589101 = weight(_text_:s in 5260) [ClassicSimilarity], result of:
              0.009589101 = score(doc=5260,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.19219826 = fieldWeight in 5260, 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=5260)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Library hi tech. 1(1983) no.1, S.27-35
  20. Janosky, B.; Smith, P.; Hildreth, C.R.: Online library cataloging systems : an analysis of user errors (1986) 0.00
    0.0013984106 = product of:
      0.0027968213 = sum of:
        0.0027968213 = product of:
          0.008390464 = sum of:
            0.008390464 = weight(_text_:s in 800) [ClassicSimilarity], result of:
              0.008390464 = score(doc=800,freq=2.0), product of:
                0.049891718 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.045888513 = queryNorm
                0.16817348 = fieldWeight in 800, 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=800)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    International journal on man machine studies. 25(1986), S.573-592

Types

  • a 45
  • m 1
  • More… Less…