Document (#16813)

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) 0.15

   0.14515442 = sum of:
     0.14515442 = product of:
       0.45360756 = sum of:
         0.053371392 = weight(abstract_txt:publishing in 7233) [ClassicSimilarity], result of:
           0.053371392 = score(doc=7233,freq=2.0), product of:
             0.112241544 = queryWeight, product of:
               1.00565 = boost
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.020746598 = queryNorm
             0.4755048 = fieldWeight in 7233, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
         0.045990307 = weight(abstract_txt:cost in 7233) [ClassicSimilarity], result of:
           0.045990307 = score(doc=7233,freq=1.0), product of:
             0.12805666 = queryWeight, product of:
               1.0741653 = boost
               5.746245 = idf(docFreq=383, maxDocs=44218)
               0.020746598 = queryNorm
             0.3591403 = fieldWeight in 7233, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.746245 = idf(docFreq=383, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
         0.057760358 = weight(abstract_txt:networking in 7233) [ClassicSimilarity], result of:
           0.057760358 = score(doc=7233,freq=1.0), product of:
             0.14906575 = queryWeight, product of:
               1.1589347 = boost
               6.199719 = idf(docFreq=243, maxDocs=44218)
               0.020746598 = queryNorm
             0.38748243 = fieldWeight in 7233, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.199719 = idf(docFreq=243, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
         0.066858575 = weight(abstract_txt:roms in 7233) [ClassicSimilarity], result of:
           0.066858575 = score(doc=7233,freq=1.0), product of:
             0.16433473 = queryWeight, product of:
               1.2168435 = boost
               6.5095015 = idf(docFreq=178, maxDocs=44218)
               0.020746598 = queryNorm
             0.40684384 = fieldWeight in 7233, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5095015 = idf(docFreq=178, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
         0.014591691 = weight(abstract_txt:information in 7233) [ClassicSimilarity], result of:
           0.014591691 = score(doc=7233,freq=2.0), product of:
             0.068190746 = queryWeight, product of:
               1.3576674 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.020746598 = queryNorm
             0.21398345 = fieldWeight in 7233, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
         0.065910846 = weight(abstract_txt:electronic in 7233) [ClassicSimilarity], result of:
           0.065910846 = score(doc=7233,freq=3.0), product of:
             0.14219974 = queryWeight, product of:
               1.6007903 = boost
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.020746598 = queryNorm
             0.4635089 = fieldWeight in 7233, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
         0.04165553 = weight(abstract_txt:databases in 7233) [ClassicSimilarity], result of:
           0.04165553 = score(doc=7233,freq=1.0), product of:
             0.1510369 = queryWeight, product of:
               1.6497821 = boost
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.020746598 = queryNorm
             0.27579704 = fieldWeight in 7233, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
         0.10746886 = weight(abstract_txt:services in 7233) [ClassicSimilarity], result of:
           0.10746886 = score(doc=7233,freq=4.0), product of:
             0.20488027 = queryWeight, product of:
               2.3533187 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.020746598 = queryNorm
             0.5245447 = fieldWeight in 7233, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.0625 = fieldNorm(doc=7233)
       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

   0.14050755 = sum of:
     0.14050755 = product of:
       0.43908608 = sum of:
         0.094348185 = weight(abstract_txt:publishing in 8640) [ClassicSimilarity], result of:
           0.094348185 = score(doc=8640,freq=4.0), product of:
             0.112241544 = queryWeight, product of:
               1.00565 = boost
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.020746598 = queryNorm
             0.84058166 = fieldWeight in 8640, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
         0.07352147 = weight(abstract_txt:select in 8640) [ClassicSimilarity], result of:
           0.07352147 = score(doc=8640,freq=1.0), product of:
             0.15087852 = queryWeight, product of:
               1.1659603 = boost
               6.237302 = idf(docFreq=234, maxDocs=44218)
               0.020746598 = queryNorm
             0.4872892 = fieldWeight in 8640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.237302 = idf(docFreq=234, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
         0.019112116 = weight(abstract_txt:their in 8640) [ClassicSimilarity], result of:
           0.019112116 = score(doc=8640,freq=1.0), product of:
             0.07742843 = queryWeight, product of:
               1.1812322 = boost
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.020746598 = queryNorm
             0.24683589 = fieldWeight in 8640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
         0.012897355 = weight(abstract_txt:information in 8640) [ClassicSimilarity], result of:
           0.012897355 = score(doc=8640,freq=1.0), product of:
             0.068190746 = queryWeight, product of:
               1.3576674 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.020746598 = queryNorm
             0.18913643 = fieldWeight in 8640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
         0.029859697 = weight(abstract_txt:online in 8640) [ClassicSimilarity], result of:
           0.029859697 = score(doc=8640,freq=1.0), product of:
             0.104252115 = queryWeight, product of:
               1.3706529 = boost
               3.6661522 = idf(docFreq=3073, maxDocs=44218)
               0.020746598 = queryNorm
             0.28641814 = fieldWeight in 8640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6661522 = idf(docFreq=3073, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
         0.06726997 = weight(abstract_txt:electronic in 8640) [ClassicSimilarity], result of:
           0.06726997 = score(doc=8640,freq=2.0), product of:
             0.14219974 = queryWeight, product of:
               1.6007903 = boost
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.020746598 = queryNorm
             0.4730668 = fieldWeight in 8640, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
         0.07490923 = weight(abstract_txt:technologies in 8640) [ClassicSimilarity], result of:
           0.07490923 = score(doc=8640,freq=1.0), product of:
             0.19247966 = queryWeight, product of:
               1.8624192 = boost
               4.981504 = idf(docFreq=824, maxDocs=44218)
               0.020746598 = queryNorm
             0.38918 = fieldWeight in 8640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.981504 = idf(docFreq=824, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
         0.06716804 = weight(abstract_txt:services in 8640) [ClassicSimilarity], result of:
           0.06716804 = score(doc=8640,freq=1.0), product of:
             0.20488027 = queryWeight, product of:
               2.3533187 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.020746598 = queryNorm
             0.32784045 = fieldWeight in 8640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.078125 = fieldNorm(doc=8640)
       0.32 = coord(8/25)
   

3. Rao, S.S.: Publishing of electronic databases (1998) 0.14

   0.14020564 = sum of:
     0.14020564 = product of:
       0.5007344 = sum of:
         0.093399934 = weight(abstract_txt:publishing in 1679) [ClassicSimilarity], result of:
           0.093399934 = score(doc=1679,freq=2.0), product of:
             0.112241544 = queryWeight, product of:
               1.00565 = boost
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.020746598 = queryNorm
             0.83213335 = fieldWeight in 1679, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.109375 = fieldNorm(doc=1679)
         0.080483034 = weight(abstract_txt:cost in 1679) [ClassicSimilarity], result of:
           0.080483034 = score(doc=1679,freq=1.0), product of:
             0.12805666 = queryWeight, product of:
               1.0741653 = boost
               5.746245 = idf(docFreq=383, maxDocs=44218)
               0.020746598 = queryNorm
             0.6284955 = fieldWeight in 1679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.746245 = idf(docFreq=383, maxDocs=44218)
               0.109375 = fieldNorm(doc=1679)
         0.02675696 = weight(abstract_txt:their in 1679) [ClassicSimilarity], result of:
           0.02675696 = score(doc=1679,freq=1.0), product of:
             0.07742843 = queryWeight, product of:
               1.1812322 = boost
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.020746598 = queryNorm
             0.34557024 = fieldWeight in 1679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.109375 = fieldNorm(doc=1679)
         0.025535459 = weight(abstract_txt:information in 1679) [ClassicSimilarity], result of:
           0.025535459 = score(doc=1679,freq=2.0), product of:
             0.068190746 = queryWeight, product of:
               1.3576674 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.020746598 = queryNorm
             0.37447104 = fieldWeight in 1679, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.109375 = fieldNorm(doc=1679)
         0.066593885 = weight(abstract_txt:electronic in 1679) [ClassicSimilarity], result of:
           0.066593885 = score(doc=1679,freq=1.0), product of:
             0.14219974 = queryWeight, product of:
               1.6007903 = boost
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.020746598 = queryNorm
             0.46831226 = fieldWeight in 1679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.109375 = fieldNorm(doc=1679)
         0.10309218 = weight(abstract_txt:databases in 1679) [ClassicSimilarity], result of:
           0.10309218 = score(doc=1679,freq=2.0), product of:
             0.1510369 = queryWeight, product of:
               1.6497821 = boost
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.020746598 = queryNorm
             0.6825628 = fieldWeight in 1679, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.109375 = fieldNorm(doc=1679)
         0.10487293 = weight(abstract_txt:technologies in 1679) [ClassicSimilarity], result of:
           0.10487293 = score(doc=1679,freq=1.0), product of:
             0.19247966 = queryWeight, product of:
               1.8624192 = boost
               4.981504 = idf(docFreq=824, maxDocs=44218)
               0.020746598 = queryNorm
             0.544852 = fieldWeight in 1679, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.981504 = idf(docFreq=824, maxDocs=44218)
               0.109375 = fieldNorm(doc=1679)
       0.28 = coord(7/25)
   

4. Electronic publishing practice in the UK (1994) 0.13

   0.13270973 = sum of:
     0.13270973 = product of:
       0.5529572 = sum of:
         0.09244197 = weight(abstract_txt:publishing in 8028) [ClassicSimilarity], result of:
           0.09244197 = score(doc=8028,freq=6.0), product of:
             0.112241544 = queryWeight, product of:
               1.00565 = boost
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.020746598 = queryNorm
             0.8235985 = fieldWeight in 8028, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.3797226 = idf(docFreq=553, maxDocs=44218)
               0.0625 = fieldNorm(doc=8028)
         0.017871099 = weight(abstract_txt:information in 8028) [ClassicSimilarity], result of:
           0.017871099 = score(doc=8028,freq=3.0), product of:
             0.068190746 = queryWeight, product of:
               1.3576674 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.020746598 = queryNorm
             0.26207513 = fieldWeight in 8028, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.0625 = fieldNorm(doc=8028)
         0.03378239 = weight(abstract_txt:online in 8028) [ClassicSimilarity], result of:
           0.03378239 = score(doc=8028,freq=2.0), product of:
             0.104252115 = queryWeight, product of:
               1.3706529 = boost
               3.6661522 = idf(docFreq=3073, maxDocs=44218)
               0.020746598 = queryNorm
             0.32404512 = fieldWeight in 8028, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6661522 = idf(docFreq=3073, maxDocs=44218)
               0.0625 = fieldNorm(doc=8028)
         0.10763196 = weight(abstract_txt:electronic in 8028) [ClassicSimilarity], result of:
           0.10763196 = score(doc=8028,freq=8.0), product of:
             0.14219974 = queryWeight, product of:
               1.6007903 = boost
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.020746598 = queryNorm
             0.75690687 = fieldWeight in 8028, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.0625 = fieldNorm(doc=8028)
         0.10746886 = weight(abstract_txt:services in 8028) [ClassicSimilarity], result of:
           0.10746886 = score(doc=8028,freq=4.0), product of:
             0.20488027 = queryWeight, product of:
               2.3533187 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.020746598 = queryNorm
             0.5245447 = fieldWeight in 8028, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.0625 = fieldNorm(doc=8028)
         0.19376093 = weight(abstract_txt:optical in 8028) [ClassicSimilarity], result of:
           0.19376093 = score(doc=8028,freq=1.0), product of:
             0.42086753 = queryWeight, product of:
               2.7539608 = boost
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.020746598 = queryNorm
             0.4603846 = fieldWeight in 8028, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.0625 = fieldNorm(doc=8028)
       0.24 = coord(6/25)
   

5. Guenette, D.R.: ¬The CD-ROM-online connection (1996) 0.13

   0.1311016 = sum of:
     0.1311016 = product of:
       0.46822 = sum of:
         0.027028613 = weight(abstract_txt:their in 4727) [ClassicSimilarity], result of:
           0.027028613 = score(doc=4727,freq=2.0), product of:
             0.07742843 = queryWeight, product of:
               1.1812322 = boost
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.020746598 = queryNorm
             0.34907866 = fieldWeight in 4727, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.078125 = fieldNorm(doc=4727)
         0.11819037 = weight(abstract_txt:roms in 4727) [ClassicSimilarity], result of:
           0.11819037 = score(doc=4727,freq=2.0), product of:
             0.16433473 = queryWeight, product of:
               1.2168435 = boost
               6.5095015 = idf(docFreq=178, maxDocs=44218)
               0.020746598 = queryNorm
             0.7192051 = fieldWeight in 4727, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.5095015 = idf(docFreq=178, maxDocs=44218)
               0.078125 = fieldNorm(doc=4727)
         0.059719395 = weight(abstract_txt:online in 4727) [ClassicSimilarity], result of:
           0.059719395 = score(doc=4727,freq=4.0), product of:
             0.104252115 = queryWeight, product of:
               1.3706529 = boost
               3.6661522 = idf(docFreq=3073, maxDocs=44218)
               0.020746598 = queryNorm
             0.5728363 = fieldWeight in 4727, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.6661522 = idf(docFreq=3073, maxDocs=44218)
               0.078125 = fieldNorm(doc=4727)
         0.04756706 = weight(abstract_txt:electronic in 4727) [ClassicSimilarity], result of:
           0.04756706 = score(doc=4727,freq=1.0), product of:
             0.14219974 = queryWeight, product of:
               1.6007903 = boost
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.020746598 = queryNorm
             0.33450875 = fieldWeight in 4727, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.281712 = idf(docFreq=1660, maxDocs=44218)
               0.078125 = fieldNorm(doc=4727)
         0.07363727 = weight(abstract_txt:databases in 4727) [ClassicSimilarity], result of:
           0.07363727 = score(doc=4727,freq=2.0), product of:
             0.1510369 = queryWeight, product of:
               1.6497821 = boost
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.020746598 = queryNorm
             0.48754486 = fieldWeight in 4727, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.078125 = fieldNorm(doc=4727)
         0.07490923 = weight(abstract_txt:technologies in 4727) [ClassicSimilarity], result of:
           0.07490923 = score(doc=4727,freq=1.0), product of:
             0.19247966 = queryWeight, product of:
               1.8624192 = boost
               4.981504 = idf(docFreq=824, maxDocs=44218)
               0.020746598 = queryNorm
             0.38918 = fieldWeight in 4727, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.981504 = idf(docFreq=824, maxDocs=44218)
               0.078125 = fieldNorm(doc=4727)
         0.06716804 = weight(abstract_txt:services in 4727) [ClassicSimilarity], result of:
           0.06716804 = score(doc=4727,freq=1.0), product of:
             0.20488027 = queryWeight, product of:
               2.3533187 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.020746598 = queryNorm
             0.32784045 = fieldWeight in 4727, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.078125 = fieldNorm(doc=4727)
       0.28 = coord(7/25)