Document (#31708)

Author
Sinnott, E.
Title
Fewer errors resulting from the users' misconception of the OPAC in 1992 than a decade ago : a comparative study of no direct hits and zero hits in author searches
Source
Cataloging and classification quarterly. 18(1993) no.1, S.75-102
Year
1993
Abstract
Reports a comparative study of OPAC use designed to investigate whether there are fewer zero or no direct hits due to users' misconceptions today than 10 years ago. Data from PEGASUS, Columbia University Law Library's INNOPAC based OPAC on failed searches was compared with that from an earlier study (see Cataloging and classification quarterly 4(1984) no.3, S.1-17) of LUIS, Northwestern University's NOTIS based OPAC. No direct hits resulting from a misconception of the system were found to constitute only half of the no direct hits compared with the corresponding category of the earlier study
Theme
OPAC
Benutzerstudien

Similar documents (content)

  1. Bangalore, N.S.: Authority files in online catalogs revisited (1995) 0.33
    0.33479476 = sum of:
      0.33479476 = product of:
        1.3949782 = sum of:
          0.09411821 = weight(abstract_txt:searches in 2983) [ClassicSimilarity], result of:
            0.09411821 = score(doc=2983,freq=2.0), product of:
              0.11636219 = queryWeight, product of:
                1.5014843 = boost
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.014820484 = queryNorm
              0.80883837 = fieldWeight in 2983, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.109375 = fieldNorm(doc=2983)
          0.019558972 = weight(abstract_txt:from in 2983) [ClassicSimilarity], result of:
            0.019558972 = score(doc=2983,freq=1.0), product of:
              0.06480574 = queryWeight, product of:
                1.5846618 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.014820484 = queryNorm
              0.30180925 = fieldWeight in 2983, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.109375 = fieldNorm(doc=2983)
          0.08575416 = weight(abstract_txt:resulting in 2983) [ClassicSimilarity], result of:
            0.08575416 = score(doc=2983,freq=1.0), product of:
              0.13778743 = queryWeight, product of:
                1.6338781 = boost
                5.6902003 = idf(docFreq=407, maxDocs=44421)
                0.014820484 = queryNorm
              0.62236565 = fieldWeight in 2983, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6902003 = idf(docFreq=407, maxDocs=44421)
                0.109375 = fieldNorm(doc=2983)
          0.32667446 = weight(abstract_txt:zero in 2983) [ClassicSimilarity], result of:
            0.32667446 = score(doc=2983,freq=2.0), product of:
              0.26675114 = queryWeight, product of:
                2.2733588 = boost
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.014820484 = queryNorm
              1.2246413 = fieldWeight in 2983, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.109375 = fieldNorm(doc=2983)
          0.15830444 = weight(abstract_txt:opac in 2983) [ClassicSimilarity], result of:
            0.15830444 = score(doc=2983,freq=1.0), product of:
              0.2612431 = queryWeight, product of:
                3.181649 = boost
                5.5402603 = idf(docFreq=473, maxDocs=44421)
                0.014820484 = queryNorm
              0.605966 = fieldWeight in 2983, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5402603 = idf(docFreq=473, maxDocs=44421)
                0.109375 = fieldNorm(doc=2983)
          0.7105679 = weight(abstract_txt:hits in 2983) [ClassicSimilarity], result of:
            0.7105679 = score(doc=2983,freq=2.0), product of:
              0.60778016 = queryWeight, product of:
                5.4257293 = boost
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.014820484 = queryNorm
              1.16912 = fieldWeight in 2983, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.109375 = fieldNorm(doc=2983)
        0.24 = coord(6/25)
    
  2. Peters, T.A.: When smart people fail : an analysis of the transaction log of an online public access catalog (1989) 0.22
    0.21808173 = sum of:
      0.21808173 = product of:
        0.9086739 = sum of:
          0.05704425 = weight(abstract_txt:searches in 2282) [ClassicSimilarity], result of:
            0.05704425 = score(doc=2282,freq=1.0), product of:
              0.11636219 = queryWeight, product of:
                1.5014843 = boost
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.014820484 = queryNorm
              0.4902301 = fieldWeight in 2282, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.09375 = fieldNorm(doc=2282)
          0.023709053 = weight(abstract_txt:from in 2282) [ClassicSimilarity], result of:
            0.023709053 = score(doc=2282,freq=2.0), product of:
              0.06480574 = queryWeight, product of:
                1.5846618 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.014820484 = queryNorm
              0.36584806 = fieldWeight in 2282, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.09375 = fieldNorm(doc=2282)
          0.06356726 = weight(abstract_txt:study in 2282) [ClassicSimilarity], result of:
            0.06356726 = score(doc=2282,freq=4.0), product of:
              0.099269606 = queryWeight, product of:
                1.9612727 = boost
                3.415198 = idf(docFreq=3968, maxDocs=44421)
                0.014820484 = queryNorm
              0.6403496 = fieldWeight in 2282, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.415198 = idf(docFreq=3968, maxDocs=44421)
                0.09375 = fieldNorm(doc=2282)
          0.19799463 = weight(abstract_txt:zero in 2282) [ClassicSimilarity], result of:
            0.19799463 = score(doc=2282,freq=1.0), product of:
              0.26675114 = queryWeight, product of:
                2.2733588 = boost
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.014820484 = queryNorm
              0.7422448 = fieldWeight in 2282, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.09375 = fieldNorm(doc=2282)
          0.13568951 = weight(abstract_txt:opac in 2282) [ClassicSimilarity], result of:
            0.13568951 = score(doc=2282,freq=1.0), product of:
              0.2612431 = queryWeight, product of:
                3.181649 = boost
                5.5402603 = idf(docFreq=473, maxDocs=44421)
                0.014820484 = queryNorm
              0.5193994 = fieldWeight in 2282, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5402603 = idf(docFreq=473, maxDocs=44421)
                0.09375 = fieldNorm(doc=2282)
          0.43066922 = weight(abstract_txt:hits in 2282) [ClassicSimilarity], result of:
            0.43066922 = score(doc=2282,freq=1.0), product of:
              0.60778016 = queryWeight, product of:
                5.4257293 = boost
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.014820484 = queryNorm
              0.7085937 = fieldWeight in 2282, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.09375 = fieldNorm(doc=2282)
        0.24 = coord(6/25)
    
  3. Bilal, D.: Web search engines for children : a comparative study and performance evaluation of Yahooligans!, AskJeeves for Kids, and Super Snooper (1999) 0.21
    0.21476051 = sum of:
      0.21476051 = product of:
        0.6711266 = sum of:
          0.054129798 = weight(abstract_txt:failed in 544) [ClassicSimilarity], result of:
            0.054129798 = score(doc=544,freq=1.0), product of:
              0.116863556 = queryWeight, product of:
                1.0639945 = boost
                7.4110084 = idf(docFreq=72, maxDocs=44421)
                0.014820484 = queryNorm
              0.46318802 = fieldWeight in 544, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4110084 = idf(docFreq=72, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
          0.03343393 = weight(abstract_txt:compared in 544) [ClassicSimilarity], result of:
            0.03343393 = score(doc=544,freq=1.0), product of:
              0.10678816 = queryWeight, product of:
                1.4383892 = boost
                5.0093837 = idf(docFreq=805, maxDocs=44421)
                0.014820484 = queryNorm
              0.31308648 = fieldWeight in 544, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0093837 = idf(docFreq=805, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
          0.065869026 = weight(abstract_txt:searches in 544) [ClassicSimilarity], result of:
            0.065869026 = score(doc=544,freq=3.0), product of:
              0.11636219 = queryWeight, product of:
                1.5014843 = boost
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.014820484 = queryNorm
              0.56606895 = fieldWeight in 544, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
          0.015806036 = weight(abstract_txt:from in 544) [ClassicSimilarity], result of:
            0.015806036 = score(doc=544,freq=2.0), product of:
              0.06480574 = queryWeight, product of:
                1.5846618 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.014820484 = queryNorm
              0.2438987 = fieldWeight in 544, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
          0.061589465 = weight(abstract_txt:earlier in 544) [ClassicSimilarity], result of:
            0.061589465 = score(doc=544,freq=1.0), product of:
              0.16047317 = queryWeight, product of:
                1.7632588 = boost
                6.140786 = idf(docFreq=259, maxDocs=44421)
                0.014820484 = queryNorm
              0.38379914 = fieldWeight in 544, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.140786 = idf(docFreq=259, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
          0.021189086 = weight(abstract_txt:study in 544) [ClassicSimilarity], result of:
            0.021189086 = score(doc=544,freq=1.0), product of:
              0.099269606 = queryWeight, product of:
                1.9612727 = boost
                3.415198 = idf(docFreq=3968, maxDocs=44421)
                0.014820484 = queryNorm
              0.21344988 = fieldWeight in 544, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.415198 = idf(docFreq=3968, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
          0.13199642 = weight(abstract_txt:zero in 544) [ClassicSimilarity], result of:
            0.13199642 = score(doc=544,freq=1.0), product of:
              0.26675114 = queryWeight, product of:
                2.2733588 = boost
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.014820484 = queryNorm
              0.49482986 = fieldWeight in 544, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
          0.2871128 = weight(abstract_txt:hits in 544) [ClassicSimilarity], result of:
            0.2871128 = score(doc=544,freq=1.0), product of:
              0.60778016 = queryWeight, product of:
                5.4257293 = boost
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.014820484 = queryNorm
              0.4723958 = fieldWeight in 544, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.0625 = fieldNorm(doc=544)
        0.32 = coord(8/25)
    
  4. Dickson, J.: ¬An analysis of user errors in searching an online catalog (1984) 0.21
    0.21224783 = sum of:
      0.21224783 = product of:
        0.758028 = sum of:
          0.02414799 = weight(abstract_txt:users in 441) [ClassicSimilarity], result of:
            0.02414799 = score(doc=441,freq=1.0), product of:
              0.0541542 = queryWeight, product of:
                1.0243088 = boost
                3.5672934 = idf(docFreq=3408, maxDocs=44421)
                0.014820484 = queryNorm
              0.44591168 = fieldWeight in 441, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5672934 = idf(docFreq=3408, maxDocs=44421)
                0.125 = fieldNorm(doc=441)
          0.108259596 = weight(abstract_txt:failed in 441) [ClassicSimilarity], result of:
            0.108259596 = score(doc=441,freq=1.0), product of:
              0.116863556 = queryWeight, product of:
                1.0639945 = boost
                7.4110084 = idf(docFreq=72, maxDocs=44421)
                0.014820484 = queryNorm
              0.92637604 = fieldWeight in 441, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4110084 = idf(docFreq=72, maxDocs=44421)
                0.125 = fieldNorm(doc=441)
          0.18933256 = weight(abstract_txt:northwestern in 441) [ClassicSimilarity], result of:
            0.18933256 = score(doc=441,freq=1.0), product of:
              0.16963613 = queryWeight, product of:
                1.2819144 = boost
                8.928879 = idf(docFreq=15, maxDocs=44421)
                0.014820484 = queryNorm
              1.1161098 = fieldWeight in 441, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.928879 = idf(docFreq=15, maxDocs=44421)
                0.125 = fieldNorm(doc=441)
          0.10756367 = weight(abstract_txt:searches in 441) [ClassicSimilarity], result of:
            0.10756367 = score(doc=441,freq=2.0), product of:
              0.11636219 = queryWeight, product of:
                1.5014843 = boost
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.014820484 = queryNorm
              0.92438674 = fieldWeight in 441, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.125 = fieldNorm(doc=441)
          0.02235311 = weight(abstract_txt:from in 441) [ClassicSimilarity], result of:
            0.02235311 = score(doc=441,freq=1.0), product of:
              0.06480574 = queryWeight, product of:
                1.5846618 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.014820484 = queryNorm
              0.34492487 = fieldWeight in 441, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.125 = fieldNorm(doc=441)
          0.042378172 = weight(abstract_txt:study in 441) [ClassicSimilarity], result of:
            0.042378172 = score(doc=441,freq=1.0), product of:
              0.099269606 = queryWeight, product of:
                1.9612727 = boost
                3.415198 = idf(docFreq=3968, maxDocs=44421)
                0.014820484 = queryNorm
              0.42689976 = fieldWeight in 441, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.415198 = idf(docFreq=3968, maxDocs=44421)
                0.125 = fieldNorm(doc=441)
          0.26399285 = weight(abstract_txt:zero in 441) [ClassicSimilarity], result of:
            0.26399285 = score(doc=441,freq=1.0), product of:
              0.26675114 = queryWeight, product of:
                2.2733588 = boost
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.014820484 = queryNorm
              0.9896597 = fieldWeight in 441, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.917278 = idf(docFreq=43, maxDocs=44421)
                0.125 = fieldNorm(doc=441)
        0.28 = coord(7/25)
    
  5. Ballard, T.: Comparative searching styles of patrons and staff (1994) 0.19
    0.1929388 = sum of:
      0.1929388 = product of:
        0.8039117 = sum of:
          0.023533762 = weight(abstract_txt:than in 115) [ClassicSimilarity], result of:
            0.023533762 = score(doc=115,freq=1.0), product of:
              0.064485915 = queryWeight, product of:
                1.1177567 = boost
                3.8927383 = idf(docFreq=2461, maxDocs=44421)
                0.014820484 = queryNorm
              0.36494422 = fieldWeight in 115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.8927383 = idf(docFreq=2461, maxDocs=44421)
                0.09375 = fieldNorm(doc=115)
          0.16063678 = weight(abstract_txt:innopac in 115) [ClassicSimilarity], result of:
            0.16063678 = score(doc=115,freq=1.0), product of:
              0.18417217 = queryWeight, product of:
                1.335709 = boost
                9.303573 = idf(docFreq=10, maxDocs=44421)
                0.014820484 = queryNorm
              0.8722099 = fieldWeight in 115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.303573 = idf(docFreq=10, maxDocs=44421)
                0.09375 = fieldNorm(doc=115)
          0.098803535 = weight(abstract_txt:searches in 115) [ClassicSimilarity], result of:
            0.098803535 = score(doc=115,freq=3.0), product of:
              0.11636219 = queryWeight, product of:
                1.5014843 = boost
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.014820484 = queryNorm
              0.84910345 = fieldWeight in 115, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.229121 = idf(docFreq=646, maxDocs=44421)
                0.09375 = fieldNorm(doc=115)
          0.016764833 = weight(abstract_txt:from in 115) [ClassicSimilarity], result of:
            0.016764833 = score(doc=115,freq=1.0), product of:
              0.06480574 = queryWeight, product of:
                1.5846618 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.014820484 = queryNorm
              0.25869364 = fieldWeight in 115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.09375 = fieldNorm(doc=115)
          0.07350357 = weight(abstract_txt:resulting in 115) [ClassicSimilarity], result of:
            0.07350357 = score(doc=115,freq=1.0), product of:
              0.13778743 = queryWeight, product of:
                1.6338781 = boost
                5.6902003 = idf(docFreq=407, maxDocs=44421)
                0.014820484 = queryNorm
              0.53345627 = fieldWeight in 115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6902003 = idf(docFreq=407, maxDocs=44421)
                0.09375 = fieldNorm(doc=115)
          0.43066922 = weight(abstract_txt:hits in 115) [ClassicSimilarity], result of:
            0.43066922 = score(doc=115,freq=1.0), product of:
              0.60778016 = queryWeight, product of:
                5.4257293 = boost
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.014820484 = queryNorm
              0.7085937 = fieldWeight in 115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.558333 = idf(docFreq=62, maxDocs=44421)
                0.09375 = fieldNorm(doc=115)
        0.24 = coord(6/25)