Search (3 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × language_ss:"ja"
  1. Sugano, I.: ¬The study of criteria for evaluating OPACs as information retrieval systems (1996) 0.01
    0.0053210123 = product of:
      0.02128405 = sum of:
        0.02128405 = weight(_text_:information in 1626) [ClassicSimilarity], result of:
          0.02128405 = score(doc=1626,freq=10.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3469568 = fieldWeight in 1626, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=1626)
      0.25 = coord(1/4)
    
    Abstract
    Most of the criteria proposed to date for the evaluation of OPACs focus on evaluation of their retrieval function. Argues that the storage function is more important because the quality of information retrieval systems is dependent on the quality of stored information as well as the description and depth of indexing of stored information. States that OPACs should therefore be evaluated from the perspectives of both storage and retrieval functions. Examines 4 studies on criteria for evaluating OPACs and suggests a new evaluation framework based on the work of C.R. Hildreth
    Source
    Library and information science. 1996, no.35, S.41-49
  2. Ueda, S.: Problems with title and author searching in WWW OPAC (1999) 0.00
    0.004164351 = product of:
      0.016657405 = sum of:
        0.016657405 = weight(_text_:information in 6437) [ClassicSimilarity], result of:
          0.016657405 = score(doc=6437,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.27153665 = fieldWeight in 6437, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=6437)
      0.25 = coord(1/4)
    
    Source
    Library and information science. 1999, no.41, S.1-15
  3. Hirawa, M.: Role of keywords in the network searching era (1998) 0.00
    0.002379629 = product of:
      0.009518516 = sum of:
        0.009518516 = weight(_text_:information in 3446) [ClassicSimilarity], result of:
          0.009518516 = score(doc=3446,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1551638 = fieldWeight in 3446, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=3446)
      0.25 = coord(1/4)
    
    Abstract
    A survey of Japanese OPACs available on the Internet was conducted relating to use of keywords for subject access. The findings suggest that present OPACs are not capable of storing subject-oriented information. Currently available keyword access derives from a merely title-based retrieval system. Contents data should be added to bibliographic records as an efficient way of providing subject access, and costings for this process should be estimated. Word standardisation issues must also be addressed