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) 0.34

   0.33547208 = sum of:
     0.33547208 = product of:
       1.3978003 = sum of:
         0.093973055 = weight(abstract_txt:searches in 2915) [ClassicSimilarity], result of:
           0.093973055 = score(doc=2915,freq=2.0), product of:
             0.11621571 = queryWeight, product of:
               1.5020459 = boost
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.0148004955 = queryNorm
             0.80860883 = fieldWeight in 2915, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.109375 = fieldNorm(doc=2915)
         0.01964088 = weight(abstract_txt:from in 2915) [ClassicSimilarity], result of:
           0.01964088 = score(doc=2915,freq=1.0), product of:
             0.06497155 = queryWeight, product of:
               1.5882812 = boost
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.0148004955 = queryNorm
             0.30229968 = fieldWeight in 2915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.109375 = fieldNorm(doc=2915)
         0.08593326 = weight(abstract_txt:resulting in 2915) [ClassicSimilarity], result of:
           0.08593326 = score(doc=2915,freq=1.0), product of:
             0.1379474 = queryWeight, product of:
               1.636468 = boost
               5.6954722 = idf(docFreq=403, maxDocs=44218)
               0.0148004955 = queryNorm
             0.62294227 = fieldWeight in 2915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6954722 = idf(docFreq=403, maxDocs=44218)
               0.109375 = fieldNorm(doc=2915)
         0.3316639 = weight(abstract_txt:zero in 2915) [ClassicSimilarity], result of:
           0.3316639 = score(doc=2915,freq=2.0), product of:
             0.26939827 = queryWeight, product of:
               2.2869053 = boost
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.0148004955 = queryNorm
             1.2311286 = fieldWeight in 2915, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.109375 = fieldNorm(doc=2915)
         0.1578029 = weight(abstract_txt:opac in 2915) [ClassicSimilarity], result of:
           0.1578029 = score(doc=2915,freq=1.0), product of:
             0.2606309 = queryWeight, product of:
               3.1811104 = boost
               5.53568 = idf(docFreq=473, maxDocs=44218)
               0.0148004955 = queryNorm
             0.605465 = fieldWeight in 2915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.53568 = idf(docFreq=473, maxDocs=44218)
               0.109375 = fieldNorm(doc=2915)
         0.7087863 = weight(abstract_txt:hits in 2915) [ClassicSimilarity], result of:
           0.7087863 = score(doc=2915,freq=2.0), product of:
             0.6066239 = queryWeight, product of:
               5.426009 = boost
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.0148004955 = queryNorm
             1.1684115 = fieldWeight in 2915, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.109375 = fieldNorm(doc=2915)
       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

   0.2185529 = sum of:
     0.2185529 = product of:
       0.91063714 = sum of:
         0.056956273 = weight(abstract_txt:searches in 2283) [ClassicSimilarity], result of:
           0.056956273 = score(doc=2283,freq=1.0), product of:
             0.11621571 = queryWeight, product of:
               1.5020459 = boost
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.0148004955 = queryNorm
             0.49009097 = fieldWeight in 2283, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.09375 = fieldNorm(doc=2283)
         0.02380834 = weight(abstract_txt:from in 2283) [ClassicSimilarity], result of:
           0.02380834 = score(doc=2283,freq=2.0), product of:
             0.06497155 = queryWeight, product of:
               1.5882812 = boost
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.0148004955 = queryNorm
             0.36644253 = fieldWeight in 2283, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.09375 = fieldNorm(doc=2283)
         0.06400482 = weight(abstract_txt:study in 2283) [ClassicSimilarity], result of:
           0.06400482 = score(doc=2283,freq=4.0), product of:
             0.09970164 = queryWeight, product of:
               1.9675099 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0148004955 = queryNorm
             0.6419636 = fieldWeight in 2283, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.09375 = fieldNorm(doc=2283)
         0.2010187 = weight(abstract_txt:zero in 2283) [ClassicSimilarity], result of:
           0.2010187 = score(doc=2283,freq=1.0), product of:
             0.26939827 = queryWeight, product of:
               2.2869053 = boost
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.0148004955 = queryNorm
             0.74617666 = fieldWeight in 2283, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.09375 = fieldNorm(doc=2283)
         0.13525963 = weight(abstract_txt:opac in 2283) [ClassicSimilarity], result of:
           0.13525963 = score(doc=2283,freq=1.0), product of:
             0.2606309 = queryWeight, product of:
               3.1811104 = boost
               5.53568 = idf(docFreq=473, maxDocs=44218)
               0.0148004955 = queryNorm
             0.51897 = fieldWeight in 2283, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.53568 = idf(docFreq=473, maxDocs=44218)
               0.09375 = fieldNorm(doc=2283)
         0.42958936 = weight(abstract_txt:hits in 2283) [ClassicSimilarity], result of:
           0.42958936 = score(doc=2283,freq=1.0), product of:
             0.6066239 = queryWeight, product of:
               5.426009 = boost
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.0148004955 = queryNorm
             0.7081643 = fieldWeight in 2283, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.09375 = fieldNorm(doc=2283)
       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) 0.22

   0.21542798 = sum of:
     0.21542798 = product of:
       0.67321247 = sum of:
         0.054294355 = weight(abstract_txt:failed in 6544) [ClassicSimilarity], result of:
           0.054294355 = score(doc=6544,freq=1.0), product of:
             0.11707328 = queryWeight, product of:
               1.0660183 = boost
               7.4202213 = idf(docFreq=71, maxDocs=44218)
               0.0148004955 = queryNorm
             0.46376383 = fieldWeight in 6544, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4202213 = idf(docFreq=71, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
         0.033544023 = weight(abstract_txt:compared in 6544) [ClassicSimilarity], result of:
           0.033544023 = score(doc=6544,freq=1.0), product of:
             0.10699778 = queryWeight, product of:
               1.4412462 = boost
               5.0160327 = idf(docFreq=796, maxDocs=44218)
               0.0148004955 = queryNorm
             0.31350204 = fieldWeight in 6544, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.0160327 = idf(docFreq=796, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
         0.06576743 = weight(abstract_txt:searches in 6544) [ClassicSimilarity], result of:
           0.06576743 = score(doc=6544,freq=3.0), product of:
             0.11621571 = queryWeight, product of:
               1.5020459 = boost
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.0148004955 = queryNorm
             0.56590825 = fieldWeight in 6544, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
         0.015872227 = weight(abstract_txt:from in 6544) [ClassicSimilarity], result of:
           0.015872227 = score(doc=6544,freq=2.0), product of:
             0.06497155 = queryWeight, product of:
               1.5882812 = boost
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.0148004955 = queryNorm
             0.24429502 = fieldWeight in 6544, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
         0.06199409 = weight(abstract_txt:earlier in 6544) [ClassicSimilarity], result of:
           0.06199409 = score(doc=6544,freq=1.0), product of:
             0.16113809 = queryWeight, product of:
               1.7686825 = boost
               6.155624 = idf(docFreq=254, maxDocs=44218)
               0.0148004955 = queryNorm
             0.3847265 = fieldWeight in 6544, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.155624 = idf(docFreq=254, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
         0.021334942 = weight(abstract_txt:study in 6544) [ClassicSimilarity], result of:
           0.021334942 = score(doc=6544,freq=1.0), product of:
             0.09970164 = queryWeight, product of:
               1.9675099 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0148004955 = queryNorm
             0.21398787 = fieldWeight in 6544, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
         0.13401246 = weight(abstract_txt:zero in 6544) [ClassicSimilarity], result of:
           0.13401246 = score(doc=6544,freq=1.0), product of:
             0.26939827 = queryWeight, product of:
               2.2869053 = boost
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.0148004955 = queryNorm
             0.4974511 = fieldWeight in 6544, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
         0.28639293 = weight(abstract_txt:hits in 6544) [ClassicSimilarity], result of:
           0.28639293 = score(doc=6544,freq=1.0), product of:
             0.6066239 = queryWeight, product of:
               5.426009 = boost
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.0148004955 = queryNorm
             0.47210953 = fieldWeight in 6544, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.0625 = fieldNorm(doc=6544)
       0.32 = coord(8/25)
   

4. Dickson, J.: ¬An analysis of user errors in searching an online catalog (1984) 0.21

   0.2134217 = sum of:
     0.2134217 = product of:
       0.7622204 = sum of:
         0.024181748 = weight(abstract_txt:users in 316) [ClassicSimilarity], result of:
           0.024181748 = score(doc=316,freq=1.0), product of:
             0.05419216 = queryWeight, product of:
               1.0256968 = boost
               3.569778 = idf(docFreq=3384, maxDocs=44218)
               0.0148004955 = queryNorm
             0.44622225 = fieldWeight in 316, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.569778 = idf(docFreq=3384, maxDocs=44218)
               0.125 = fieldNorm(doc=316)
         0.10858871 = weight(abstract_txt:failed in 316) [ClassicSimilarity], result of:
           0.10858871 = score(doc=316,freq=1.0), product of:
             0.11707328 = queryWeight, product of:
               1.0660183 = boost
               7.4202213 = idf(docFreq=71, maxDocs=44218)
               0.0148004955 = queryNorm
             0.92752767 = fieldWeight in 316, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4202213 = idf(docFreq=71, maxDocs=44218)
               0.125 = fieldNorm(doc=316)
         0.18891059 = weight(abstract_txt:northwestern in 316) [ClassicSimilarity], result of:
           0.18891059 = score(doc=316,freq=1.0), product of:
             0.16934493 = queryWeight, product of:
               1.2821 = boost
               8.924298 = idf(docFreq=15, maxDocs=44218)
               0.0148004955 = queryNorm
             1.1155373 = fieldWeight in 316, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.924298 = idf(docFreq=15, maxDocs=44218)
               0.125 = fieldNorm(doc=316)
         0.10739777 = weight(abstract_txt:searches in 316) [ClassicSimilarity], result of:
           0.10739777 = score(doc=316,freq=2.0), product of:
             0.11621571 = queryWeight, product of:
               1.5020459 = boost
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.0148004955 = queryNorm
             0.92412436 = fieldWeight in 316, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.125 = fieldNorm(doc=316)
         0.022446718 = weight(abstract_txt:from in 316) [ClassicSimilarity], result of:
           0.022446718 = score(doc=316,freq=1.0), product of:
             0.06497155 = queryWeight, product of:
               1.5882812 = boost
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.0148004955 = queryNorm
             0.34548533 = fieldWeight in 316, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.125 = fieldNorm(doc=316)
         0.042669885 = weight(abstract_txt:study in 316) [ClassicSimilarity], result of:
           0.042669885 = score(doc=316,freq=1.0), product of:
             0.09970164 = queryWeight, product of:
               1.9675099 = boost
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.0148004955 = queryNorm
             0.42797574 = fieldWeight in 316, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.423806 = idf(docFreq=3916, maxDocs=44218)
               0.125 = fieldNorm(doc=316)
         0.26802492 = weight(abstract_txt:zero in 316) [ClassicSimilarity], result of:
           0.26802492 = score(doc=316,freq=1.0), product of:
             0.26939827 = queryWeight, product of:
               2.2869053 = boost
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.0148004955 = queryNorm
             0.9949022 = fieldWeight in 316, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.125 = fieldNorm(doc=316)
       0.28 = coord(7/25)
   

5. Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008) 0.19

   0.19295454 = sum of:
     0.19295454 = product of:
       0.80397725 = sum of:
         0.01813631 = weight(abstract_txt:users in 3599) [ClassicSimilarity], result of:
           0.01813631 = score(doc=3599,freq=1.0), product of:
             0.05419216 = queryWeight, product of:
               1.0256968 = boost
               3.569778 = idf(docFreq=3384, maxDocs=44218)
               0.0148004955 = queryNorm
             0.33466667 = fieldWeight in 3599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.569778 = idf(docFreq=3384, maxDocs=44218)
               0.09375 = fieldNorm(doc=3599)
         0.08144153 = weight(abstract_txt:failed in 3599) [ClassicSimilarity], result of:
           0.08144153 = score(doc=3599,freq=1.0), product of:
             0.11707328 = queryWeight, product of:
               1.0660183 = boost
               7.4202213 = idf(docFreq=71, maxDocs=44218)
               0.0148004955 = queryNorm
             0.69564575 = fieldWeight in 3599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4202213 = idf(docFreq=71, maxDocs=44218)
               0.09375 = fieldNorm(doc=3599)
         0.056956273 = weight(abstract_txt:searches in 3599) [ClassicSimilarity], result of:
           0.056956273 = score(doc=3599,freq=1.0), product of:
             0.11621571 = queryWeight, product of:
               1.5020459 = boost
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.0148004955 = queryNorm
             0.49009097 = fieldWeight in 3599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.227637 = idf(docFreq=644, maxDocs=44218)
               0.09375 = fieldNorm(doc=3599)
         0.016835038 = weight(abstract_txt:from in 3599) [ClassicSimilarity], result of:
           0.016835038 = score(doc=3599,freq=1.0), product of:
             0.06497155 = queryWeight, product of:
               1.5882812 = boost
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.0148004955 = queryNorm
             0.259114 = fieldWeight in 3599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.7638826 = idf(docFreq=7577, maxDocs=44218)
               0.09375 = fieldNorm(doc=3599)
         0.2010187 = weight(abstract_txt:zero in 3599) [ClassicSimilarity], result of:
           0.2010187 = score(doc=3599,freq=1.0), product of:
             0.26939827 = queryWeight, product of:
               2.2869053 = boost
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.0148004955 = queryNorm
             0.74617666 = fieldWeight in 3599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.9592175 = idf(docFreq=41, maxDocs=44218)
               0.09375 = fieldNorm(doc=3599)
         0.42958936 = weight(abstract_txt:hits in 3599) [ClassicSimilarity], result of:
           0.42958936 = score(doc=3599,freq=1.0), product of:
             0.6066239 = queryWeight, product of:
               5.426009 = boost
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.0148004955 = queryNorm
             0.7081643 = fieldWeight in 3599, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5537524 = idf(docFreq=62, maxDocs=44218)
               0.09375 = fieldNorm(doc=3599)
       0.24 = coord(6/25)