Document (#16811)

Author
Rao, S.S.
Title
Information retrieval services : role of optical technologies
Source
New library world. 98(1997) no.1132, S.16-24
Year
1997
Abstract
Outlines information access throught he right mixture of technologies namely, online and CD-ROM. While mentioning the electronic databases, electronic information path and generations of online services, presents the salient features of CD-ROMs, their cost effectiveness, database services in various subjects and select databases. Discusses the establishment of CD workstations, their networking publishing and future of optical technology

Similar documents (content)

  1. Ward, S.: Networked CD-ROMs as academic information sources : the growth of networked electronic information sources in academic libraries (1993) 0.14
    0.14415811 = sum of:
      0.14415811 = product of:
        0.4504941 = sum of:
          0.053446304 = weight(abstract_txt:publishing in 7230) [ClassicSimilarity], result of:
            0.053446304 = score(doc=7230,freq=2.0), product of:
              0.11221843 = queryWeight, product of:
                1.0094534 = boost
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.02063096 = queryNorm
              0.4762703 = fieldWeight in 7230, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
          0.04584902 = weight(abstract_txt:cost in 7230) [ClassicSimilarity], result of:
            0.04584902 = score(doc=7230,freq=1.0), product of:
              0.12764852 = queryWeight, product of:
                1.076619 = boost
                5.7469087 = idf(docFreq=377, maxDocs=43556)
                0.02063096 = queryNorm
              0.3591818 = fieldWeight in 7230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7469087 = idf(docFreq=377, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
          0.05748743 = weight(abstract_txt:networking in 7230) [ClassicSimilarity], result of:
            0.05748743 = score(doc=7230,freq=1.0), product of:
              0.14842634 = queryWeight, product of:
                1.1609397 = boost
                6.1970057 = idf(docFreq=240, maxDocs=43556)
                0.02063096 = queryNorm
              0.38731286 = fieldWeight in 7230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1970057 = idf(docFreq=240, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
          0.06616794 = weight(abstract_txt:roms in 7230) [ClassicSimilarity], result of:
            0.06616794 = score(doc=7230,freq=1.0), product of:
              0.16301496 = queryWeight, product of:
                1.2166563 = boost
                6.4944167 = idf(docFreq=178, maxDocs=43556)
                0.02063096 = queryNorm
              0.40590104 = fieldWeight in 7230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4944167 = idf(docFreq=178, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
          0.01461946 = weight(abstract_txt:information in 7230) [ClassicSimilarity], result of:
            0.01461946 = score(doc=7230,freq=2.0), product of:
              0.068199374 = queryWeight, product of:
                1.3630286 = boost
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.02063096 = queryNorm
              0.21436356 = fieldWeight in 7230, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
          0.06502135 = weight(abstract_txt:electronic in 7230) [ClassicSimilarity], result of:
            0.06502135 = score(doc=7230,freq=3.0), product of:
              0.14075677 = queryWeight, product of:
                1.5988356 = boost
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.02063096 = queryNorm
              0.46194118 = fieldWeight in 7230, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
          0.041360136 = weight(abstract_txt:databases in 7230) [ClassicSimilarity], result of:
            0.041360136 = score(doc=7230,freq=1.0), product of:
              0.15015058 = queryWeight, product of:
                1.6513255 = boost
                4.4073234 = idf(docFreq=1442, maxDocs=43556)
                0.02063096 = queryNorm
              0.2754577 = fieldWeight in 7230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4073234 = idf(docFreq=1442, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
          0.106542476 = weight(abstract_txt:services in 7230) [ClassicSimilarity], result of:
            0.106542476 = score(doc=7230,freq=4.0), product of:
              0.20346887 = queryWeight, product of:
                2.3543108 = boost
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.02063096 = queryNorm
              0.5236303 = fieldWeight in 7230, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.0625 = fieldNorm(doc=7230)
        0.32 = coord(8/25)
    
  2. Duffy, R.A.: ¬The new face (and voice) of electronic publishing : implications of the information highway (1994) 0.14
    0.1403415 = sum of:
      0.1403415 = product of:
        0.4385672 = sum of:
          0.09448062 = weight(abstract_txt:publishing in 637) [ClassicSimilarity], result of:
            0.09448062 = score(doc=637,freq=4.0), product of:
              0.11221843 = queryWeight, product of:
                1.0094534 = boost
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.02063096 = queryNorm
              0.8419349 = fieldWeight in 637, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
          0.07380562 = weight(abstract_txt:select in 637) [ClassicSimilarity], result of:
            0.07380562 = score(doc=637,freq=1.0), product of:
              0.15109451 = queryWeight, product of:
                1.171328 = boost
                6.252457 = idf(docFreq=227, maxDocs=43556)
                0.02063096 = queryNorm
              0.4884732 = fieldWeight in 637, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.252457 = idf(docFreq=227, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
          0.01937036 = weight(abstract_txt:their in 637) [ClassicSimilarity], result of:
            0.01937036 = score(doc=637,freq=1.0), product of:
              0.07803525 = queryWeight, product of:
                1.1904594 = boost
                3.1772897 = idf(docFreq=4936, maxDocs=43556)
                0.02063096 = queryNorm
              0.24822576 = fieldWeight in 637, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.1772897 = idf(docFreq=4936, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
          0.0129219005 = weight(abstract_txt:information in 637) [ClassicSimilarity], result of:
            0.0129219005 = score(doc=637,freq=1.0), product of:
              0.068199374 = queryWeight, product of:
                1.3630286 = boost
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.02063096 = queryNorm
              0.18947242 = fieldWeight in 637, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
          0.029789686 = weight(abstract_txt:online in 637) [ClassicSimilarity], result of:
            0.029789686 = score(doc=637,freq=1.0), product of:
              0.103970386 = queryWeight, product of:
                1.3741179 = boost
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.02063096 = queryNorm
              0.28652087 = fieldWeight in 637, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
          0.066362135 = weight(abstract_txt:electronic in 637) [ClassicSimilarity], result of:
            0.066362135 = score(doc=637,freq=2.0), product of:
              0.14075677 = queryWeight, product of:
                1.5988356 = boost
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.02063096 = queryNorm
              0.47146675 = fieldWeight in 637, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
          0.075247824 = weight(abstract_txt:technologies in 637) [ClassicSimilarity], result of:
            0.075247824 = score(doc=637,freq=1.0), product of:
              0.19283906 = queryWeight, product of:
                1.8714002 = boost
                4.994694 = idf(docFreq=801, maxDocs=43556)
                0.02063096 = queryNorm
              0.39021048 = fieldWeight in 637, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.994694 = idf(docFreq=801, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
          0.06658905 = weight(abstract_txt:services in 637) [ClassicSimilarity], result of:
            0.06658905 = score(doc=637,freq=1.0), product of:
              0.20346887 = queryWeight, product of:
                2.3543108 = boost
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.02063096 = queryNorm
              0.32726896 = fieldWeight in 637, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.078125 = fieldNorm(doc=637)
        0.32 = coord(8/25)
    
  3. Rao, S.S.: Publishing of electronic databases (1998) 0.14
    0.13996434 = sum of:
      0.13996434 = product of:
        0.49987262 = sum of:
          0.093531035 = weight(abstract_txt:publishing in 2677) [ClassicSimilarity], result of:
            0.093531035 = score(doc=2677,freq=2.0), product of:
              0.11221843 = queryWeight, product of:
                1.0094534 = boost
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.02063096 = queryNorm
              0.833473 = fieldWeight in 2677, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.109375 = fieldNorm(doc=2677)
          0.08023579 = weight(abstract_txt:cost in 2677) [ClassicSimilarity], result of:
            0.08023579 = score(doc=2677,freq=1.0), product of:
              0.12764852 = queryWeight, product of:
                1.076619 = boost
                5.7469087 = idf(docFreq=377, maxDocs=43556)
                0.02063096 = queryNorm
              0.6285681 = fieldWeight in 2677, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7469087 = idf(docFreq=377, maxDocs=43556)
                0.109375 = fieldNorm(doc=2677)
          0.027118502 = weight(abstract_txt:their in 2677) [ClassicSimilarity], result of:
            0.027118502 = score(doc=2677,freq=1.0), product of:
              0.07803525 = queryWeight, product of:
                1.1904594 = boost
                3.1772897 = idf(docFreq=4936, maxDocs=43556)
                0.02063096 = queryNorm
              0.34751606 = fieldWeight in 2677, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.1772897 = idf(docFreq=4936, maxDocs=43556)
                0.109375 = fieldNorm(doc=2677)
          0.025584055 = weight(abstract_txt:information in 2677) [ClassicSimilarity], result of:
            0.025584055 = score(doc=2677,freq=2.0), product of:
              0.068199374 = queryWeight, product of:
                1.3630286 = boost
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.02063096 = queryNorm
              0.37513623 = fieldWeight in 2677, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.109375 = fieldNorm(doc=2677)
          0.06569517 = weight(abstract_txt:electronic in 2677) [ClassicSimilarity], result of:
            0.06569517 = score(doc=2677,freq=1.0), product of:
              0.14075677 = queryWeight, product of:
                1.5988356 = boost
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.02063096 = queryNorm
              0.46672827 = fieldWeight in 2677, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.109375 = fieldNorm(doc=2677)
          0.10236111 = weight(abstract_txt:databases in 2677) [ClassicSimilarity], result of:
            0.10236111 = score(doc=2677,freq=2.0), product of:
              0.15015058 = queryWeight, product of:
                1.6513255 = boost
                4.4073234 = idf(docFreq=1442, maxDocs=43556)
                0.02063096 = queryNorm
              0.68172306 = fieldWeight in 2677, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4073234 = idf(docFreq=1442, maxDocs=43556)
                0.109375 = fieldNorm(doc=2677)
          0.105346955 = weight(abstract_txt:technologies in 2677) [ClassicSimilarity], result of:
            0.105346955 = score(doc=2677,freq=1.0), product of:
              0.19283906 = queryWeight, product of:
                1.8714002 = boost
                4.994694 = idf(docFreq=801, maxDocs=43556)
                0.02063096 = queryNorm
              0.5462947 = fieldWeight in 2677, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.994694 = idf(docFreq=801, maxDocs=43556)
                0.109375 = fieldNorm(doc=2677)
        0.28 = coord(7/25)
    
  4. Electronic publishing practice in the UK (1994) 0.13
    0.13171603 = sum of:
      0.13171603 = product of:
        0.5488168 = sum of:
          0.09257172 = weight(abstract_txt:publishing in 25) [ClassicSimilarity], result of:
            0.09257172 = score(doc=25,freq=6.0), product of:
              0.11221843 = queryWeight, product of:
                1.0094534 = boost
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.02063096 = queryNorm
              0.8249244 = fieldWeight in 25, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.3883834 = idf(docFreq=540, maxDocs=43556)
                0.0625 = fieldNorm(doc=25)
          0.017905109 = weight(abstract_txt:information in 25) [ClassicSimilarity], result of:
            0.017905109 = score(doc=25,freq=3.0), product of:
              0.068199374 = queryWeight, product of:
                1.3630286 = boost
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.02063096 = queryNorm
              0.26254067 = fieldWeight in 25, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.0625 = fieldNorm(doc=25)
          0.033703182 = weight(abstract_txt:online in 25) [ClassicSimilarity], result of:
            0.033703182 = score(doc=25,freq=2.0), product of:
              0.103970386 = queryWeight, product of:
                1.3741179 = boost
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.02063096 = queryNorm
              0.32416135 = fieldWeight in 25, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.0625 = fieldNorm(doc=25)
          0.106179416 = weight(abstract_txt:electronic in 25) [ClassicSimilarity], result of:
            0.106179416 = score(doc=25,freq=8.0), product of:
              0.14075677 = queryWeight, product of:
                1.5988356 = boost
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.02063096 = queryNorm
              0.7543468 = fieldWeight in 25, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.0625 = fieldNorm(doc=25)
          0.106542476 = weight(abstract_txt:services in 25) [ClassicSimilarity], result of:
            0.106542476 = score(doc=25,freq=4.0), product of:
              0.20346887 = queryWeight, product of:
                2.3543108 = boost
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.02063096 = queryNorm
              0.5236303 = fieldWeight in 25, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.0625 = fieldNorm(doc=25)
          0.19191495 = weight(abstract_txt:optical in 25) [ClassicSimilarity], result of:
            0.19191495 = score(doc=25,freq=1.0), product of:
              0.41771325 = queryWeight, product of:
                2.7542813 = boost
                7.3510695 = idf(docFreq=75, maxDocs=43556)
                0.02063096 = queryNorm
              0.45944184 = fieldWeight in 25, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3510695 = idf(docFreq=75, maxDocs=43556)
                0.0625 = fieldNorm(doc=25)
        0.24 = coord(6/25)
    
  5. Guenette, D.R.: ¬The CD-ROM-online connection (1996) 0.13
    0.13042955 = sum of:
      0.13042955 = product of:
        0.4658198 = sum of:
          0.027393825 = weight(abstract_txt:their in 4793) [ClassicSimilarity], result of:
            0.027393825 = score(doc=4793,freq=2.0), product of:
              0.07803525 = queryWeight, product of:
                1.1904594 = boost
                3.1772897 = idf(docFreq=4936, maxDocs=43556)
                0.02063096 = queryNorm
              0.35104424 = fieldWeight in 4793, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.1772897 = idf(docFreq=4936, maxDocs=43556)
                0.078125 = fieldNorm(doc=4793)
          0.11696951 = weight(abstract_txt:roms in 4793) [ClassicSimilarity], result of:
            0.11696951 = score(doc=4793,freq=2.0), product of:
              0.16301496 = queryWeight, product of:
                1.2166563 = boost
                6.4944167 = idf(docFreq=178, maxDocs=43556)
                0.02063096 = queryNorm
              0.7175385 = fieldWeight in 4793, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.4944167 = idf(docFreq=178, maxDocs=43556)
                0.078125 = fieldNorm(doc=4793)
          0.059579372 = weight(abstract_txt:online in 4793) [ClassicSimilarity], result of:
            0.059579372 = score(doc=4793,freq=4.0), product of:
              0.103970386 = queryWeight, product of:
                1.3741179 = boost
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.02063096 = queryNorm
              0.57304174 = fieldWeight in 4793, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.667467 = idf(docFreq=3023, maxDocs=43556)
                0.078125 = fieldNorm(doc=4793)
          0.04692512 = weight(abstract_txt:electronic in 4793) [ClassicSimilarity], result of:
            0.04692512 = score(doc=4793,freq=1.0), product of:
              0.14075677 = queryWeight, product of:
                1.5988356 = boost
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.02063096 = queryNorm
              0.33337736 = fieldWeight in 4793, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.26723 = idf(docFreq=1659, maxDocs=43556)
                0.078125 = fieldNorm(doc=4793)
          0.07311508 = weight(abstract_txt:databases in 4793) [ClassicSimilarity], result of:
            0.07311508 = score(doc=4793,freq=2.0), product of:
              0.15015058 = queryWeight, product of:
                1.6513255 = boost
                4.4073234 = idf(docFreq=1442, maxDocs=43556)
                0.02063096 = queryNorm
              0.48694503 = fieldWeight in 4793, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4073234 = idf(docFreq=1442, maxDocs=43556)
                0.078125 = fieldNorm(doc=4793)
          0.075247824 = weight(abstract_txt:technologies in 4793) [ClassicSimilarity], result of:
            0.075247824 = score(doc=4793,freq=1.0), product of:
              0.19283906 = queryWeight, product of:
                1.8714002 = boost
                4.994694 = idf(docFreq=801, maxDocs=43556)
                0.02063096 = queryNorm
              0.39021048 = fieldWeight in 4793, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.994694 = idf(docFreq=801, maxDocs=43556)
                0.078125 = fieldNorm(doc=4793)
          0.06658905 = weight(abstract_txt:services in 4793) [ClassicSimilarity], result of:
            0.06658905 = score(doc=4793,freq=1.0), product of:
              0.20346887 = queryWeight, product of:
                2.3543108 = boost
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.02063096 = queryNorm
              0.32726896 = fieldWeight in 4793, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1890426 = idf(docFreq=1794, maxDocs=43556)
                0.078125 = fieldNorm(doc=4793)
        0.28 = coord(7/25)