Document (#22649)

Author
Knutson, G.
Title
Subject enhancement : report on an experiment
Source
College and research libraries. 52(1991), S.65-79
Year
1991
Abstract
This report describes an experiment in subject enhancement conducted at an academic research library. Subjects and contents notes were added to online catalog records for a group of previously uncirculated social science essay collections, and circulation was monitored over one academic year. A control group, plus a third group with added contents notes but no extra subjects, were also monitored. Results showed an improvement in recorded use for the subject-enhanced titles, but not for titles that only had added contents notes. The effects of browsing, keyword searching, and OPAC display are discussed
Theme
Kataloganreicherung
Object
SAP

Similar documents (content)

  1. Dwyer, J.: Bibliographic records enhancement : from the drawing board to the catalog screen (1991) 0.20
    0.19709058 = sum of:
      0.19709058 = product of:
        0.9854529 = sum of:
          0.07010094 = weight(abstract_txt:display in 514) [ClassicSimilarity], result of:
            0.07010094 = score(doc=514,freq=1.0), product of:
              0.107002795 = queryWeight, product of:
                1.0342313 = boost
                5.989777 = idf(docFreq=300, maxDocs=44218)
                0.01727296 = queryNorm
              0.6551319 = fieldWeight in 514, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.989777 = idf(docFreq=300, maxDocs=44218)
                0.109375 = fieldNorm(doc=514)
          0.076526254 = weight(abstract_txt:enhanced in 514) [ClassicSimilarity], result of:
            0.076526254 = score(doc=514,freq=1.0), product of:
              0.113445215 = queryWeight, product of:
                1.0649108 = boost
                6.167458 = idf(docFreq=251, maxDocs=44218)
                0.01727296 = queryNorm
              0.67456573 = fieldWeight in 514, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.167458 = idf(docFreq=251, maxDocs=44218)
                0.109375 = fieldNorm(doc=514)
          0.122295596 = weight(abstract_txt:titles in 514) [ClassicSimilarity], result of:
            0.122295596 = score(doc=514,freq=1.0), product of:
              0.19537234 = queryWeight, product of:
                1.9763628 = boost
                5.723078 = idf(docFreq=392, maxDocs=44218)
                0.01727296 = queryNorm
              0.62596166 = fieldWeight in 514, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.723078 = idf(docFreq=392, maxDocs=44218)
                0.109375 = fieldNorm(doc=514)
          0.37860754 = weight(abstract_txt:contents in 514) [ClassicSimilarity], result of:
            0.37860754 = score(doc=514,freq=4.0), product of:
              0.29926723 = queryWeight, product of:
                2.9957829 = boost
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.01727296 = queryNorm
              1.2651153 = fieldWeight in 514, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.109375 = fieldNorm(doc=514)
          0.3379226 = weight(abstract_txt:notes in 514) [ClassicSimilarity], result of:
            0.3379226 = score(doc=514,freq=3.0), product of:
              0.30534494 = queryWeight, product of:
                3.02605 = boost
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.01727296 = queryNorm
              1.1066914 = fieldWeight in 514, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.109375 = fieldNorm(doc=514)
        0.2 = coord(5/25)
    
  2. Dwyer, J.: How deep is your database? : the OCLC pilot project on contents enrichment (1991) 0.19
    0.18734206 = sum of:
      0.18734206 = product of:
        1.170888 = sum of:
          0.083378 = weight(abstract_txt:subject in 3853) [ClassicSimilarity], result of:
            0.083378 = score(doc=3853,freq=1.0), product of:
              0.13657965 = queryWeight, product of:
                2.0238287 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.01727296 = queryNorm
              0.61047167 = fieldWeight in 3853, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.15625 = fieldNorm(doc=3853)
          0.3824514 = weight(abstract_txt:contents in 3853) [ClassicSimilarity], result of:
            0.3824514 = score(doc=3853,freq=2.0), product of:
              0.29926723 = queryWeight, product of:
                2.9957829 = boost
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.01727296 = queryNorm
              1.2779595 = fieldWeight in 3853, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.15625 = fieldNorm(doc=3853)
          0.39416093 = weight(abstract_txt:notes in 3853) [ClassicSimilarity], result of:
            0.39416093 = score(doc=3853,freq=2.0), product of:
              0.30534494 = queryWeight, product of:
                3.02605 = boost
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.01727296 = queryNorm
              1.290871 = fieldWeight in 3853, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.15625 = fieldNorm(doc=3853)
          0.31089765 = weight(abstract_txt:added in 3853) [ClassicSimilarity], result of:
            0.31089765 = score(doc=3853,freq=1.0), product of:
              0.32842028 = queryWeight, product of:
                3.1383092 = boost
                6.0585327 = idf(docFreq=280, maxDocs=44218)
                0.01727296 = queryNorm
              0.94664574 = fieldWeight in 3853, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0585327 = idf(docFreq=280, maxDocs=44218)
                0.15625 = fieldNorm(doc=3853)
        0.16 = coord(4/25)
    
  3. Leazer, G.H.: ¬The effectiveness of keyword searching in the retrieval of musical works on sound recordings (1992) 0.17
    0.16631989 = sum of:
      0.16631989 = product of:
        0.69299954 = sum of:
          0.10255215 = weight(abstract_txt:keyword in 536) [ClassicSimilarity], result of:
            0.10255215 = score(doc=536,freq=4.0), product of:
              0.108711235 = queryWeight, product of:
                1.0424551 = boost
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.01727296 = queryNorm
              0.94334453 = fieldWeight in 536, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.078125 = fieldNorm(doc=536)
          0.06345723 = weight(abstract_txt:recorded in 536) [ClassicSimilarity], result of:
            0.06345723 = score(doc=536,freq=1.0), product of:
              0.12530988 = queryWeight, product of:
                1.1192131 = boost
                6.481951 = idf(docFreq=183, maxDocs=44218)
                0.01727296 = queryNorm
              0.50640243 = fieldWeight in 536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.481951 = idf(docFreq=183, maxDocs=44218)
                0.078125 = fieldNorm(doc=536)
          0.032578398 = weight(abstract_txt:were in 536) [ClassicSimilarity], result of:
            0.032578398 = score(doc=536,freq=2.0), product of:
              0.08034356 = queryWeight, product of:
                1.2673911 = boost
                3.6700637 = idf(docFreq=3061, maxDocs=44218)
                0.01727296 = queryNorm
              0.40548858 = fieldWeight in 536, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6700637 = idf(docFreq=3061, maxDocs=44218)
                0.078125 = fieldNorm(doc=536)
          0.13521698 = weight(abstract_txt:contents in 536) [ClassicSimilarity], result of:
            0.13521698 = score(doc=536,freq=1.0), product of:
              0.29926723 = queryWeight, product of:
                2.9957829 = boost
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.01727296 = queryNorm
              0.4518269 = fieldWeight in 536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.078125 = fieldNorm(doc=536)
          0.13935694 = weight(abstract_txt:notes in 536) [ClassicSimilarity], result of:
            0.13935694 = score(doc=536,freq=1.0), product of:
              0.30534494 = queryWeight, product of:
                3.02605 = boost
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.01727296 = queryNorm
              0.45639184 = fieldWeight in 536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.078125 = fieldNorm(doc=536)
          0.21983783 = weight(abstract_txt:added in 536) [ClassicSimilarity], result of:
            0.21983783 = score(doc=536,freq=2.0), product of:
              0.32842028 = queryWeight, product of:
                3.1383092 = boost
                6.0585327 = idf(docFreq=280, maxDocs=44218)
                0.01727296 = queryNorm
              0.6693796 = fieldWeight in 536, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.0585327 = idf(docFreq=280, maxDocs=44218)
                0.078125 = fieldNorm(doc=536)
        0.24 = coord(6/25)
    
  4. Gatenby, J.; Thornburg, G.; Weitz, J.: Collected work clustering in WorldCat : three techniques for maintaining records (2015) 0.14
    0.1442254 = sum of:
      0.1442254 = product of:
        0.72112703 = sum of:
          0.05383486 = weight(abstract_txt:previously in 2276) [ClassicSimilarity], result of:
            0.05383486 = score(doc=2276,freq=1.0), product of:
              0.11229842 = queryWeight, product of:
                1.0595146 = boost
                6.1362057 = idf(docFreq=259, maxDocs=44218)
                0.01727296 = queryNorm
              0.47939107 = fieldWeight in 2276, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1362057 = idf(docFreq=259, maxDocs=44218)
                0.078125 = fieldNorm(doc=2276)
          0.1235372 = weight(abstract_txt:titles in 2276) [ClassicSimilarity], result of:
            0.1235372 = score(doc=2276,freq=2.0), product of:
              0.19537234 = queryWeight, product of:
                1.9763628 = boost
                5.723078 = idf(docFreq=392, maxDocs=44218)
                0.01727296 = queryNorm
              0.6323167 = fieldWeight in 2276, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.723078 = idf(docFreq=392, maxDocs=44218)
                0.078125 = fieldNorm(doc=2276)
          0.1912257 = weight(abstract_txt:contents in 2276) [ClassicSimilarity], result of:
            0.1912257 = score(doc=2276,freq=2.0), product of:
              0.29926723 = queryWeight, product of:
                2.9957829 = boost
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.01727296 = queryNorm
              0.63897973 = fieldWeight in 2276, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.078125 = fieldNorm(doc=2276)
          0.19708046 = weight(abstract_txt:notes in 2276) [ClassicSimilarity], result of:
            0.19708046 = score(doc=2276,freq=2.0), product of:
              0.30534494 = queryWeight, product of:
                3.02605 = boost
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.01727296 = queryNorm
              0.6454355 = fieldWeight in 2276, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.078125 = fieldNorm(doc=2276)
          0.15544882 = weight(abstract_txt:added in 2276) [ClassicSimilarity], result of:
            0.15544882 = score(doc=2276,freq=1.0), product of:
              0.32842028 = queryWeight, product of:
                3.1383092 = boost
                6.0585327 = idf(docFreq=280, maxDocs=44218)
                0.01727296 = queryNorm
              0.47332287 = fieldWeight in 2276, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0585327 = idf(docFreq=280, maxDocs=44218)
                0.078125 = fieldNorm(doc=2276)
        0.2 = coord(5/25)
    
  5. Lundgren, J.; Simpson, B.: Cataloging needs survey for faculty at the University of Florida (1997) 0.14
    0.14366555 = sum of:
      0.14366555 = product of:
        0.71832776 = sum of:
          0.027643686 = weight(abstract_txt:were in 508) [ClassicSimilarity], result of:
            0.027643686 = score(doc=508,freq=1.0), product of:
              0.08034356 = queryWeight, product of:
                1.2673911 = boost
                3.6700637 = idf(docFreq=3061, maxDocs=44218)
                0.01727296 = queryNorm
              0.34406847 = fieldWeight in 508, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6700637 = idf(docFreq=3061, maxDocs=44218)
                0.09375 = fieldNorm(doc=508)
          0.089142285 = weight(abstract_txt:subjects in 508) [ClassicSimilarity], result of:
            0.089142285 = score(doc=508,freq=1.0), product of:
              0.175365 = queryWeight, product of:
                1.8724343 = boost
                5.4221253 = idf(docFreq=530, maxDocs=44218)
                0.01727296 = queryNorm
              0.50832427 = fieldWeight in 508, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4221253 = idf(docFreq=530, maxDocs=44218)
                0.09375 = fieldNorm(doc=508)
          0.10482479 = weight(abstract_txt:titles in 508) [ClassicSimilarity], result of:
            0.10482479 = score(doc=508,freq=1.0), product of:
              0.19537234 = queryWeight, product of:
                1.9763628 = boost
                5.723078 = idf(docFreq=392, maxDocs=44218)
                0.01727296 = queryNorm
              0.53653854 = fieldWeight in 508, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.723078 = idf(docFreq=392, maxDocs=44218)
                0.09375 = fieldNorm(doc=508)
          0.16226038 = weight(abstract_txt:contents in 508) [ClassicSimilarity], result of:
            0.16226038 = score(doc=508,freq=1.0), product of:
              0.29926723 = queryWeight, product of:
                2.9957829 = boost
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.01727296 = queryNorm
              0.5421923 = fieldWeight in 508, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7833843 = idf(docFreq=369, maxDocs=44218)
                0.09375 = fieldNorm(doc=508)
          0.33445665 = weight(abstract_txt:notes in 508) [ClassicSimilarity], result of:
            0.33445665 = score(doc=508,freq=4.0), product of:
              0.30534494 = queryWeight, product of:
                3.02605 = boost
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.01727296 = queryNorm
              1.0953404 = fieldWeight in 508, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.8418155 = idf(docFreq=348, maxDocs=44218)
                0.09375 = fieldNorm(doc=508)
        0.2 = coord(5/25)