Document (#3639)

Author
Clever, E.C.
Dillard, D.P.
Title
What do CD-ROM users really need?
Source
Information services and use. 11(1991) no.3, S.141-153
Year
1991
Abstract
States that the search facilities offered by CD-ROM are not always learnt easily by users. It takes a number of years of extensive experience to become a proficient online searcher. The number of users searching simultaneously is limited by the number of terminals. Additional staff are needed for helping although some uses acquainted with the system do explain it to their friends
Theme
Informationsmittel

Similar documents (content)

  1. Anderson, J.: Have users changed their style? : a survey of CD-ROM vs. OPAC product usage (1995) 0.11
    0.11339335 = sum of:
      0.11339335 = product of:
        0.4724723 = sum of:
          0.046907447 = weight(abstract_txt:needed in 1853) [ClassicSimilarity], result of:
            0.046907447 = score(doc=1853,freq=1.0), product of:
              0.11402695 = queryWeight, product of:
                1.04658 = boost
                5.2655563 = idf(docFreq=620, maxDocs=44218)
                0.020691445 = queryNorm
              0.4113716 = fieldWeight in 1853, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2655563 = idf(docFreq=620, maxDocs=44218)
                0.078125 = fieldNorm(doc=1853)
          0.07511675 = weight(abstract_txt:staff in 1853) [ClassicSimilarity], result of:
            0.07511675 = score(doc=1853,freq=2.0), product of:
              0.123877995 = queryWeight, product of:
                1.0908518 = boost
                5.488297 = idf(docFreq=496, maxDocs=44218)
                0.020691445 = queryNorm
              0.6063769 = fieldWeight in 1853, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.488297 = idf(docFreq=496, maxDocs=44218)
                0.078125 = fieldNorm(doc=1853)
          0.068817616 = weight(abstract_txt:offered in 1853) [ClassicSimilarity], result of:
            0.068817616 = score(doc=1853,freq=1.0), product of:
              0.14722426 = queryWeight, product of:
                1.1892095 = boost
                5.9831543 = idf(docFreq=302, maxDocs=44218)
                0.020691445 = queryNorm
              0.46743393 = fieldWeight in 1853, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9831543 = idf(docFreq=302, maxDocs=44218)
                0.078125 = fieldNorm(doc=1853)
          0.15158708 = weight(abstract_txt:terminals in 1853) [ClassicSimilarity], result of:
            0.15158708 = score(doc=1853,freq=1.0), product of:
              0.24924192 = queryWeight, product of:
                1.5473167 = boost
                7.7848644 = idf(docFreq=49, maxDocs=44218)
                0.020691445 = queryNorm
              0.60819256 = fieldWeight in 1853, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7848644 = idf(docFreq=49, maxDocs=44218)
                0.078125 = fieldNorm(doc=1853)
          0.06201101 = weight(abstract_txt:users in 1853) [ClassicSimilarity], result of:
            0.06201101 = score(doc=1853,freq=2.0), product of:
              0.15722536 = queryWeight, product of:
                2.128583 = boost
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.020691445 = queryNorm
              0.39440846 = fieldWeight in 1853, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.078125 = fieldNorm(doc=1853)
          0.0680324 = weight(abstract_txt:number in 1853) [ClassicSimilarity], result of:
            0.0680324 = score(doc=1853,freq=1.0), product of:
              0.21071588 = queryWeight, product of:
                2.4642112 = boost
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.020691445 = queryNorm
              0.3228632 = fieldWeight in 1853, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.078125 = fieldNorm(doc=1853)
        0.24 = coord(6/25)
    
  2. Whelan, J.A.: Public access compact shelving in an academic branch library (1996) 0.09
    0.09375969 = sum of:
      0.09375969 = product of:
        0.5859981 = sum of:
          0.06547034 = weight(abstract_txt:uses in 344) [ClassicSimilarity], result of:
            0.06547034 = score(doc=344,freq=1.0), product of:
              0.104102865 = queryWeight, product of:
                5.0312033 = idf(docFreq=784, maxDocs=44218)
                0.020691445 = queryNorm
              0.6289004 = fieldWeight in 344, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0312033 = idf(docFreq=784, maxDocs=44218)
                0.125 = fieldNorm(doc=344)
          0.084984906 = weight(abstract_txt:staff in 344) [ClassicSimilarity], result of:
            0.084984906 = score(doc=344,freq=1.0), product of:
              0.123877995 = queryWeight, product of:
                1.0908518 = boost
                5.488297 = idf(docFreq=496, maxDocs=44218)
                0.020691445 = queryNorm
              0.6860371 = fieldWeight in 344, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.488297 = idf(docFreq=496, maxDocs=44218)
                0.125 = fieldNorm(doc=344)
          0.3653854 = weight(abstract_txt:learnt in 344) [ClassicSimilarity], result of:
            0.3653854 = score(doc=344,freq=1.0), product of:
              0.3275421 = queryWeight, product of:
                1.77379 = boost
                8.924298 = idf(docFreq=15, maxDocs=44218)
                0.020691445 = queryNorm
              1.1155373 = fieldWeight in 344, 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=344)
          0.07015745 = weight(abstract_txt:users in 344) [ClassicSimilarity], result of:
            0.07015745 = score(doc=344,freq=1.0), product of:
              0.15722536 = queryWeight, product of:
                2.128583 = boost
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.020691445 = queryNorm
              0.44622225 = fieldWeight in 344, 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=344)
        0.16 = coord(4/25)
    
  3. Haas, S.W.: Improving the search environment : informed decision making in the search for statistical information (2003) 0.09
    0.08690555 = sum of:
      0.08690555 = product of:
        0.36210644 = sum of:
          0.03752596 = weight(abstract_txt:needed in 1687) [ClassicSimilarity], result of:
            0.03752596 = score(doc=1687,freq=1.0), product of:
              0.11402695 = queryWeight, product of:
                1.04658 = boost
                5.2655563 = idf(docFreq=620, maxDocs=44218)
                0.020691445 = queryNorm
              0.32909727 = fieldWeight in 1687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2655563 = idf(docFreq=620, maxDocs=44218)
                0.0625 = fieldNorm(doc=1687)
          0.05050408 = weight(abstract_txt:states in 1687) [ClassicSimilarity], result of:
            0.05050408 = score(doc=1687,freq=1.0), product of:
              0.13899653 = queryWeight, product of:
                1.1555018 = boost
                5.813565 = idf(docFreq=358, maxDocs=44218)
                0.020691445 = queryNorm
              0.3633478 = fieldWeight in 1687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.813565 = idf(docFreq=358, maxDocs=44218)
                0.0625 = fieldNorm(doc=1687)
          0.07904133 = weight(abstract_txt:extensive in 1687) [ClassicSimilarity], result of:
            0.07904133 = score(doc=1687,freq=2.0), product of:
              0.14871193 = queryWeight, product of:
                1.1952027 = boost
                6.0133076 = idf(docFreq=293, maxDocs=44218)
                0.020691445 = queryNorm
              0.5315063 = fieldWeight in 1687, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.0133076 = idf(docFreq=293, maxDocs=44218)
                0.0625 = fieldNorm(doc=1687)
          0.064371645 = weight(abstract_txt:facilities in 1687) [ClassicSimilarity], result of:
            0.064371645 = score(doc=1687,freq=1.0), product of:
              0.163399 = queryWeight, product of:
                1.2528335 = boost
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.020691445 = queryNorm
              0.39395374 = fieldWeight in 1687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.0625 = fieldNorm(doc=1687)
          0.08105463 = weight(abstract_txt:searcher in 1687) [ClassicSimilarity], result of:
            0.08105463 = score(doc=1687,freq=1.0), product of:
              0.19053358 = queryWeight, product of:
                1.3528649 = boost
                6.806538 = idf(docFreq=132, maxDocs=44218)
                0.020691445 = queryNorm
              0.42540863 = fieldWeight in 1687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.806538 = idf(docFreq=132, maxDocs=44218)
                0.0625 = fieldNorm(doc=1687)
          0.04960881 = weight(abstract_txt:users in 1687) [ClassicSimilarity], result of:
            0.04960881 = score(doc=1687,freq=2.0), product of:
              0.15722536 = queryWeight, product of:
                2.128583 = boost
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.020691445 = queryNorm
              0.31552678 = fieldWeight in 1687, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.0625 = fieldNorm(doc=1687)
        0.24 = coord(6/25)
    
  4. Bodoff, D.; Enache, D.; Kambil, A.; Simon, G.; Yukhimets, A.: ¬A unified maximum likelihood approach to document retrieval (2001) 0.09
    0.08540848 = sum of:
      0.08540848 = product of:
        0.4270424 = sum of:
          0.052710533 = weight(abstract_txt:limited in 174) [ClassicSimilarity], result of:
            0.052710533 = score(doc=174,freq=1.0), product of:
              0.12324744 = queryWeight, product of:
                1.088072 = boost
                5.474311 = idf(docFreq=503, maxDocs=44218)
                0.020691445 = queryNorm
              0.42768055 = fieldWeight in 174, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.474311 = idf(docFreq=503, maxDocs=44218)
                0.078125 = fieldNorm(doc=174)
          0.073274955 = weight(abstract_txt:explain in 174) [ClassicSimilarity], result of:
            0.073274955 = score(doc=174,freq=1.0), product of:
              0.15351471 = queryWeight, product of:
                1.2143494 = boost
                6.1096387 = idf(docFreq=266, maxDocs=44218)
                0.020691445 = queryNorm
              0.47731552 = fieldWeight in 174, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1096387 = idf(docFreq=266, maxDocs=44218)
                0.078125 = fieldNorm(doc=174)
          0.10098416 = weight(abstract_txt:simultaneously in 174) [ClassicSimilarity], result of:
            0.10098416 = score(doc=174,freq=1.0), product of:
              0.19011445 = queryWeight, product of:
                1.351376 = boost
                6.7990475 = idf(docFreq=133, maxDocs=44218)
                0.020691445 = queryNorm
              0.5311756 = fieldWeight in 174, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.7990475 = idf(docFreq=133, maxDocs=44218)
                0.078125 = fieldNorm(doc=174)
          0.15622434 = weight(abstract_txt:really in 174) [ClassicSimilarity], result of:
            0.15622434 = score(doc=174,freq=2.0), product of:
              0.20183761 = queryWeight, product of:
                1.3924183 = boost
                7.0055394 = idf(docFreq=108, maxDocs=44218)
                0.020691445 = queryNorm
              0.77401006 = fieldWeight in 174, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.0055394 = idf(docFreq=108, maxDocs=44218)
                0.078125 = fieldNorm(doc=174)
          0.043848407 = weight(abstract_txt:users in 174) [ClassicSimilarity], result of:
            0.043848407 = score(doc=174,freq=1.0), product of:
              0.15722536 = queryWeight, product of:
                2.128583 = boost
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.020691445 = queryNorm
              0.2788889 = fieldWeight in 174, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.078125 = fieldNorm(doc=174)
        0.2 = coord(5/25)
    
  5. Tenopir, C.: Integrating electronic reference (1995) 0.08
    0.077380024 = sum of:
      0.077380024 = product of:
        0.38690013 = sum of:
          0.06373868 = weight(abstract_txt:staff in 2616) [ClassicSimilarity], result of:
            0.06373868 = score(doc=2616,freq=1.0), product of:
              0.123877995 = queryWeight, product of:
                1.0908518 = boost
                5.488297 = idf(docFreq=496, maxDocs=44218)
                0.020691445 = queryNorm
              0.51452786 = fieldWeight in 2616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.488297 = idf(docFreq=496, maxDocs=44218)
                0.09375 = fieldNorm(doc=2616)
          0.069609635 = weight(abstract_txt:additional in 2616) [ClassicSimilarity], result of:
            0.069609635 = score(doc=2616,freq=1.0), product of:
              0.13137268 = queryWeight, product of:
                1.1233658 = boost
                5.6518817 = idf(docFreq=421, maxDocs=44218)
                0.020691445 = queryNorm
              0.5298639 = fieldWeight in 2616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6518817 = idf(docFreq=421, maxDocs=44218)
                0.09375 = fieldNorm(doc=2616)
          0.08258114 = weight(abstract_txt:offered in 2616) [ClassicSimilarity], result of:
            0.08258114 = score(doc=2616,freq=1.0), product of:
              0.14722426 = queryWeight, product of:
                1.1892095 = boost
                5.9831543 = idf(docFreq=302, maxDocs=44218)
                0.020691445 = queryNorm
              0.5609207 = fieldWeight in 2616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9831543 = idf(docFreq=302, maxDocs=44218)
                0.09375 = fieldNorm(doc=2616)
          0.09655746 = weight(abstract_txt:facilities in 2616) [ClassicSimilarity], result of:
            0.09655746 = score(doc=2616,freq=1.0), product of:
              0.163399 = queryWeight, product of:
                1.2528335 = boost
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.020691445 = queryNorm
              0.5909306 = fieldWeight in 2616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.09375 = fieldNorm(doc=2616)
          0.07441322 = weight(abstract_txt:users in 2616) [ClassicSimilarity], result of:
            0.07441322 = score(doc=2616,freq=2.0), product of:
              0.15722536 = queryWeight, product of:
                2.128583 = boost
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.020691445 = queryNorm
              0.47329018 = fieldWeight in 2616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.09375 = fieldNorm(doc=2616)
        0.2 = coord(5/25)