Search (1344 results, page 1 of 68)

  • × year_i:[1980 TO 1990}
  1. Harter, S.P.: Online information retrieval : concepts, principles, and techniques (1986) 0.40 
    0.39839542 = product of:
  0.7171117 = sum of:
    0.32304552 = weight(_text_:line in 1388) [ClassicSimilarity], result of:
      0.32304552 = score(doc=1388,freq=8.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        1.4870037 = fieldWeight in 1388, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.09375 = fieldNorm(doc=1388)
    0.0316565 = weight(_text_:information in 1388) [ClassicSimilarity], result of:
      0.0316565 = score(doc=1388,freq=8.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.46549138 = fieldWeight in 1388, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.09375 = fieldNorm(doc=1388)
    0.08140089 = weight(_text_:retrieval in 1388) [ClassicSimilarity], result of:
      0.08140089 = score(doc=1388,freq=6.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.6946405 = fieldWeight in 1388, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.09375 = fieldNorm(doc=1388)
    0.17263949 = weight(_text_:techniques in 1388) [ClassicSimilarity], result of:
      0.17263949 = score(doc=1388,freq=6.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        1.0116158 = fieldWeight in 1388, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.09375 = fieldNorm(doc=1388)
    0.10836932 = product of:
      0.21673864 = sum of:
        0.21673864 = weight(_text_:theories in 1388) [ClassicSimilarity], result of:
          0.21673864 = score(doc=1388,freq=4.0), product of:
            0.21161452 = queryWeight, product of:
              5.4624767 = idf(docFreq=509, maxDocs=44218)
              0.038739666 = queryNorm
            1.0242144 = fieldWeight in 1388, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.4624767 = idf(docFreq=509, maxDocs=44218)
              0.09375 = fieldNorm(doc=1388)
      0.5 = coord(1/2)
  0.5555556 = coord(5/9)
    LCSH
    On / line bibliographic searching
    PRECIS
    On / line information retrieval / Techniques / Theories
    Series
    Library and information science
    Subject
    On / line bibliographic searching
    On / line information retrieval / Techniques / Theories
  2. Malsburg, C. von der: ¬The correlation theory of brain function (1981) 0.29 
    0.2885198 = product of:
  0.5193356 = sum of:
    0.051274054 = product of:
      0.15382215 = sum of:
        0.15382215 = weight(_text_:3a in 76) [ClassicSimilarity], result of:
          0.15382215 = score(doc=76,freq=2.0), product of:
            0.32843533 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.038739666 = queryNorm
            0.46834838 = fieldWeight in 76, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.0390625 = fieldNorm(doc=76)
      0.33333334 = coord(1/3)
    0.15382215 = weight(_text_:2f in 76) [ClassicSimilarity], result of:
      0.15382215 = score(doc=76,freq=2.0), product of:
        0.32843533 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.038739666 = queryNorm
        0.46834838 = fieldWeight in 76, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.0390625 = fieldNorm(doc=76)
    0.0065951035 = weight(_text_:information in 76) [ClassicSimilarity], result of:
      0.0065951035 = score(doc=76,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.09697737 = fieldWeight in 76, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0390625 = fieldNorm(doc=76)
    0.15382215 = weight(_text_:2f in 76) [ClassicSimilarity], result of:
      0.15382215 = score(doc=76,freq=2.0), product of:
        0.32843533 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.038739666 = queryNorm
        0.46834838 = fieldWeight in 76, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.0390625 = fieldNorm(doc=76)
    0.15382215 = weight(_text_:2f in 76) [ClassicSimilarity], result of:
      0.15382215 = score(doc=76,freq=2.0), product of:
        0.32843533 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.038739666 = queryNorm
        0.46834838 = fieldWeight in 76, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.0390625 = fieldNorm(doc=76)
  0.5555556 = coord(5/9)
    Source
    http%3A%2F%2Fcogprints.org%2F1380%2F1%2FvdM_correlation.pdf&usg=AOvVaw0g7DvZbQPb2U7dYb49b9v_
    Theme
    Information
  3. Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987) 0.11 
    0.11495744 = product of:
  0.25865424 = sum of:
    0.021104332 = weight(_text_:information in 334) [ClassicSimilarity], result of:
      0.021104332 = score(doc=334,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.3103276 = fieldWeight in 334, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.125 = fieldNorm(doc=334)
    0.06266243 = weight(_text_:retrieval in 334) [ClassicSimilarity], result of:
      0.06266243 = score(doc=334,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.5347345 = fieldWeight in 334, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.125 = fieldNorm(doc=334)
    0.13289794 = weight(_text_:techniques in 334) [ClassicSimilarity], result of:
      0.13289794 = score(doc=334,freq=2.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        0.7787422 = fieldWeight in 334, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.125 = fieldNorm(doc=334)
    0.04198952 = product of:
      0.08397904 = sum of:
        0.08397904 = weight(_text_:22 in 334) [ClassicSimilarity], result of:
          0.08397904 = score(doc=334,freq=2.0), product of:
            0.13565971 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.038739666 = queryNorm
            0.61904186 = fieldWeight in 334, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.125 = fieldNorm(doc=334)
      0.5 = coord(1/2)
  0.44444445 = coord(4/9)
    Source
    Annual review of information science and technology. 22(1987), S.109-145
  4. Crawford, W.; Stovel, L.; Bales, K.: Bibliographic displays in the online catalog (1986) 0.11 
    0.11441489 = product of:
  0.34324467 = sum of:
    0.26920462 = weight(_text_:line in 222) [ClassicSimilarity], result of:
      0.26920462 = score(doc=222,freq=8.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        1.2391697 = fieldWeight in 222, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.078125 = fieldNorm(doc=222)
    0.01865377 = weight(_text_:information in 222) [ClassicSimilarity], result of:
      0.01865377 = score(doc=222,freq=4.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.27429342 = fieldWeight in 222, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.078125 = fieldNorm(doc=222)
    0.055386286 = weight(_text_:retrieval in 222) [ClassicSimilarity], result of:
      0.055386286 = score(doc=222,freq=4.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.47264296 = fieldWeight in 222, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.078125 = fieldNorm(doc=222)
  0.33333334 = coord(3/9)
    LCSH
    On / line bibliographic searching
    PRECIS
    Bibliographic on / line information retrieval services
    Subject
    On / line bibliographic searching
    Bibliographic on / line information retrieval services
  5. Morris, L.R.: Choosing a bibliographic utility (1989) 0.11 
    0.10575859 = product of:
  0.31727576 = sum of:
    0.22842771 = weight(_text_:line in 3727) [ClassicSimilarity], result of:
      0.22842771 = score(doc=3727,freq=4.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        1.0514705 = fieldWeight in 3727, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.09375 = fieldNorm(doc=3727)
    0.022384524 = weight(_text_:information in 3727) [ClassicSimilarity], result of:
      0.022384524 = score(doc=3727,freq=4.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.3291521 = fieldWeight in 3727, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.09375 = fieldNorm(doc=3727)
    0.066463545 = weight(_text_:retrieval in 3727) [ClassicSimilarity], result of:
      0.066463545 = score(doc=3727,freq=4.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.5671716 = fieldWeight in 3727, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.09375 = fieldNorm(doc=3727)
  0.33333334 = coord(3/9)
    COMPASS
    Information retrieval / Use of / On-line computers
    Subject
    Information retrieval / Use of / On-line computers
  6. Ingwersen, P.; Wormell, I.: Modern indexing and retrieval techniques matching different types of information needs (1989) 0.10 
    0.10398731 = product of:
  0.23397143 = sum of:
    0.02611528 = weight(_text_:information in 7322) [ClassicSimilarity], result of:
      0.02611528 = score(doc=7322,freq=4.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.3840108 = fieldWeight in 7322, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=7322)
    0.054829627 = weight(_text_:retrieval in 7322) [ClassicSimilarity], result of:
      0.054829627 = score(doc=7322,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.46789268 = fieldWeight in 7322, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.109375 = fieldNorm(doc=7322)
    0.1162857 = weight(_text_:techniques in 7322) [ClassicSimilarity], result of:
      0.1162857 = score(doc=7322,freq=2.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        0.6813994 = fieldWeight in 7322, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.109375 = fieldNorm(doc=7322)
    0.03674083 = product of:
      0.07348166 = sum of:
        0.07348166 = weight(_text_:22 in 7322) [ClassicSimilarity], result of:
          0.07348166 = score(doc=7322,freq=2.0), product of:
            0.13565971 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.038739666 = queryNorm
            0.5416616 = fieldWeight in 7322, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=7322)
      0.5 = coord(1/2)
  0.44444445 = coord(4/9)
    Source
    International forum on information and documentation. 14(1989), S.17-22
  7. Salton, G.: Automatic text processing : the transformation, analysis, and retrieval of information by computer (1989) 0.09 
    0.09367886 = product of:
  0.2810366 = sum of:
    0.1903564 = weight(_text_:line in 1307) [ClassicSimilarity], result of:
      0.1903564 = score(doc=1307,freq=4.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.87622535 = fieldWeight in 1307, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.078125 = fieldNorm(doc=1307)
    0.022846112 = weight(_text_:information in 1307) [ClassicSimilarity], result of:
      0.022846112 = score(doc=1307,freq=6.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.3359395 = fieldWeight in 1307, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.078125 = fieldNorm(doc=1307)
    0.06783407 = weight(_text_:retrieval in 1307) [ClassicSimilarity], result of:
      0.06783407 = score(doc=1307,freq=6.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.5788671 = fieldWeight in 1307, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.078125 = fieldNorm(doc=1307)
  0.33333334 = coord(3/9)
    COMPASS
    Information retrieval / Use of / On-line computers
    Subject
    Information retrieval / Use of / On-line computers
  8. Boeckx, T.: Onderwerpontsluiting in de on-line publiekscatalogus (1986) 0.07 
    0.0675515 = product of:
  0.30398175 = sum of:
    0.2153637 = weight(_text_:line in 145) [ClassicSimilarity], result of:
      0.2153637 = score(doc=145,freq=2.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.9913358 = fieldWeight in 145, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.125 = fieldNorm(doc=145)
    0.08861806 = weight(_text_:retrieval in 145) [ClassicSimilarity], result of:
      0.08861806 = score(doc=145,freq=4.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.75622874 = fieldWeight in 145, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.125 = fieldNorm(doc=145)
  0.22222222 = coord(2/9)
    Theme
    Verbale Doksprachen im Online-Retrieval
    Klassifikationssysteme im Online-Retrieval
  9. Dubois, C.P.R.: Free text vs. controlled vocabulary; a reassessment (1987) 0.07 
    0.065905795 = product of:
  0.19771737 = sum of:
    0.010552166 = weight(_text_:information in 2048) [ClassicSimilarity], result of:
      0.010552166 = score(doc=2048,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.1551638 = fieldWeight in 2048, 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=2048)
    0.05426726 = weight(_text_:retrieval in 2048) [ClassicSimilarity], result of:
      0.05426726 = score(doc=2048,freq=6.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.46309367 = fieldWeight in 2048, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0625 = fieldNorm(doc=2048)
    0.13289794 = weight(_text_:techniques in 2048) [ClassicSimilarity], result of:
      0.13289794 = score(doc=2048,freq=8.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        0.7787422 = fieldWeight in 2048, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.0625 = fieldNorm(doc=2048)
  0.33333334 = coord(3/9)
    Abstract
    Free text and controlled vocabulary searching can no longer be viewed as antagonistic techniques in information retrieval since they both display advantages and weaknesses dependent on a fairly wide range of context, with the option to use both increasingly favoured. An attempt is made to present a list of features associated with the two techniques and to suggest a methodology to assist in deciding on the optimal retrieval technique for a particular purpose. The relevance of the techniques in expert systems and full text contexts is also discussed. Finally, recommendations for further research are suggested, concentrating on survey techniques in real-life retrieval situations
  10. Auster, E.; Lawton, S.B.: Search interview techniques and information gain as antecedents of user satisfaction with online bibliographic retrieval (1984) 0.07 
    0.065743536 = product of:
  0.1972306 = sum of:
    0.02611528 = weight(_text_:information in 5156) [ClassicSimilarity], result of:
      0.02611528 = score(doc=5156,freq=4.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.3840108 = fieldWeight in 5156, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=5156)
    0.054829627 = weight(_text_:retrieval in 5156) [ClassicSimilarity], result of:
      0.054829627 = score(doc=5156,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.46789268 = fieldWeight in 5156, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.109375 = fieldNorm(doc=5156)
    0.1162857 = weight(_text_:techniques in 5156) [ClassicSimilarity], result of:
      0.1162857 = score(doc=5156,freq=2.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        0.6813994 = fieldWeight in 5156, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.109375 = fieldNorm(doc=5156)
  0.33333334 = coord(3/9)
    Source
    Journal of the American Society for Information Science. 35(1984) no.2, S.90-103
  11. Crehange, M.; Foucaut, O.; Halin, G.; Mouaddib, N.; Foucaut, J.F.: Semantics of user interface for image retrieval : possibility theory and learning techniques (1989) 0.06 
    0.06319387 = product of:
  0.18958162 = sum of:
    0.018466292 = weight(_text_:information in 5636) [ClassicSimilarity], result of:
      0.018466292 = score(doc=5636,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.27153665 = fieldWeight in 5636, 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=5636)
    0.054829627 = weight(_text_:retrieval in 5636) [ClassicSimilarity], result of:
      0.054829627 = score(doc=5636,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.46789268 = fieldWeight in 5636, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.109375 = fieldNorm(doc=5636)
    0.1162857 = weight(_text_:techniques in 5636) [ClassicSimilarity], result of:
      0.1162857 = score(doc=5636,freq=2.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        0.6813994 = fieldWeight in 5636, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.109375 = fieldNorm(doc=5636)
  0.33333334 = coord(3/9)
    Source
    Information processing and management. 25(1989) no.6, S.615-627
  12. Mitev, N.N.; Venner, G.M.; Walker, S.: Designing an online public access catalogue : OKAPI, a catalogue on a local area network (1985) 0.06 
    0.06275441 = product of:
  0.28239483 = sum of:
    0.26920462 = weight(_text_:line in 435) [ClassicSimilarity], result of:
      0.26920462 = score(doc=435,freq=8.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        1.2391697 = fieldWeight in 435, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.078125 = fieldNorm(doc=435)
    0.013190207 = weight(_text_:information in 435) [ClassicSimilarity], result of:
      0.013190207 = score(doc=435,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.19395474 = fieldWeight in 435, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.078125 = fieldNorm(doc=435)
  0.22222222 = coord(2/9)
    LCSH
    Catalogs, On / line
    PRECIS
    Libraries / On / line catalogues
    Series
    Library and information research report; 39
    Subject
    Catalogs, On / line
    Libraries / On / line catalogues
  13. ETHICS: Detailanleitung zur On-line Abfrage; Titelwortabfrage und Sachabfrage. Stand: 30.7.1987 (1987) 0.06 
    0.061783586 = product of:
  0.27802613 = sum of:
    0.2153637 = weight(_text_:line in 111) [ClassicSimilarity], result of:
      0.2153637 = score(doc=111,freq=2.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.9913358 = fieldWeight in 111, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.125 = fieldNorm(doc=111)
    0.06266243 = weight(_text_:retrieval in 111) [ClassicSimilarity], result of:
      0.06266243 = score(doc=111,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.5347345 = fieldWeight in 111, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.125 = fieldNorm(doc=111)
  0.22222222 = coord(2/9)
    Theme
    Klassifikationssysteme im Online-Retrieval
  14. Markey, K.: Findings of the Dewey Decimal Classification on-line project (1986) 0.06 
    0.061783586 = product of:
  0.27802613 = sum of:
    0.2153637 = weight(_text_:line in 156) [ClassicSimilarity], result of:
      0.2153637 = score(doc=156,freq=2.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.9913358 = fieldWeight in 156, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.125 = fieldNorm(doc=156)
    0.06266243 = weight(_text_:retrieval in 156) [ClassicSimilarity], result of:
      0.06266243 = score(doc=156,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.5347345 = fieldWeight in 156, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.125 = fieldNorm(doc=156)
  0.22222222 = coord(2/9)
    Theme
    Klassifikationssysteme im Online-Retrieval
  15. May, G.: Pictorial history online : a new way to research our past (1989) 0.06 
    0.060298815 = product of:
  0.18089645 = sum of:
    0.10768185 = weight(_text_:line in 3513) [ClassicSimilarity], result of:
      0.10768185 = score(doc=3513,freq=2.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.4956679 = fieldWeight in 3513, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.0625 = fieldNorm(doc=3513)
    0.010552166 = weight(_text_:information in 3513) [ClassicSimilarity], result of:
      0.010552166 = score(doc=3513,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.1551638 = fieldWeight in 3513, 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=3513)
    0.06266243 = weight(_text_:retrieval in 3513) [ClassicSimilarity], result of:
      0.06266243 = score(doc=3513,freq=8.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.5347345 = fieldWeight in 3513, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0625 = fieldNorm(doc=3513)
  0.33333334 = coord(3/9)
    Abstract
    Discusses the storage of images (Australian historical photographs) and associated descriptive text, and the simultaneous on-line retrieval of both the images and the text. Describes the process of image retrieval from videodisc linked to data bases focusing on the Bicentennial Archives Project at the New South Wales Government Printing Office. The following aspects are examined: history of the project; systems now operating; hardware; videodisc production; and data base creation and information retrieval. Discusses applications of this system in other Australian institutions and outlines some major advantages of videodisc-based image retrieval systems.
  16. Alkula, R.; Sormunen, E.: Problems and guidelines for database descriptions (1989) 0.06 
    0.0597102 = product of:
  0.1791306 = sum of:
    0.13324949 = weight(_text_:line in 2397) [ClassicSimilarity], result of:
      0.13324949 = score(doc=2397,freq=4.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.6133578 = fieldWeight in 2397, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2397)
    0.018466292 = weight(_text_:information in 2397) [ClassicSimilarity], result of:
      0.018466292 = score(doc=2397,freq=8.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.27153665 = fieldWeight in 2397, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2397)
    0.027414814 = weight(_text_:retrieval in 2397) [ClassicSimilarity], result of:
      0.027414814 = score(doc=2397,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.23394634 = fieldWeight in 2397, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2397)
  0.33333334 = coord(3/9)
    Abstract
    An essential part of information retrieval knowledge is the knowledge of data base contents and structures. Currently, the variety of data bases is so wide that it is difficult to know the contents and structure of a particular data base and how they differ from those of other data bases. Because of the lack of commonly acknowledged guidelines for data base descriptions, each on-line service designs and produces printed manuals, on-line help texts and other user documentation in its own manner. For the presentation of exact information and knowledge on a data base, common, structured principles for data base descriptions are needed. Requirements and some solutions for such description principles are presented.
    Source
    Information and innovation. Proceedings of the 7th Nordic Conference for Information and Documentation, Århus University, Denmark, 28-30 August 1989. Ed. by Helge Clausen
  17. Maron, M.E.: Associative search techniques versus probabilistic retrieval models (1982) 0.06 
    0.056586176 = product of:
  0.16975853 = sum of:
    0.007914125 = weight(_text_:information in 7408) [ClassicSimilarity], result of:
      0.007914125 = score(doc=7408,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.116372846 = fieldWeight in 7408, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=7408)
    0.062170953 = weight(_text_:retrieval in 7408) [ClassicSimilarity], result of:
      0.062170953 = score(doc=7408,freq=14.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.5305404 = fieldWeight in 7408, product of:
          3.7416575 = tf(freq=14.0), with freq of:
            14.0 = termFreq=14.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.046875 = fieldNorm(doc=7408)
    0.09967345 = weight(_text_:techniques in 7408) [ClassicSimilarity], result of:
      0.09967345 = score(doc=7408,freq=8.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        0.5840566 = fieldWeight in 7408, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.046875 = fieldNorm(doc=7408)
  0.33333334 = coord(3/9)
    Abstract
    Offers a personal look back at the origins and early use of associative search techniques, and also a look forward at more theoretical approaches to the document retrieval problems. The purpose is to contrast the following 2 different ways of improving system performance: appending associative search techniques to more or less standard (conventional) document retrieval systems; and designing document retrieval systems based on more fundamental and appropriate principles namely probabilistic design principles. Very recent work on probabilistic approaches to the document retrieval problem has provided a new (and rare) unification of 2 previously competing models. In light of this, argues that if we had to choose the best way to improve performance of a document retrieval system, it would be wiser to implement, test, and evaluate this new unified model, rather than to continue to use associative techniques which are coupled to conventionally designed retrieval systems
    Source
    Journal of the American Society for Information Science. 33(1982) no.5, S.308-310
  18. Spitz, A.L.; Wilcox, L.D.: Classification techniques applied to the recognition of office documents (1988) 0.06 
    0.056015246 = product of:
  0.2520686 = sum of:
    0.13460231 = weight(_text_:line in 137) [ClassicSimilarity], result of:
      0.13460231 = score(doc=137,freq=2.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.61958486 = fieldWeight in 137, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.078125 = fieldNorm(doc=137)
    0.11746629 = weight(_text_:techniques in 137) [ClassicSimilarity], result of:
      0.11746629 = score(doc=137,freq=4.0), product of:
        0.17065717 = queryWeight, product of:
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.038739666 = queryNorm
        0.68831736 = fieldWeight in 137, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.405231 = idf(docFreq=1467, maxDocs=44218)
          0.078125 = fieldNorm(doc=137)
  0.22222222 = coord(2/9)
    Abstract
    In the process of developing a document recognition network service, techniques were developed for the segmentation and classification of text, line drawing graphics and pictures
  19. Pao, M.L.: Retrieval differences between term and citation indexing (1989) 0.05 
    0.054181017 = product of:
  0.16254304 = sum of:
    0.10768185 = weight(_text_:line in 3566) [ClassicSimilarity], result of:
      0.10768185 = score(doc=3566,freq=2.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.4956679 = fieldWeight in 3566, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.0625 = fieldNorm(doc=3566)
    0.010552166 = weight(_text_:information in 3566) [ClassicSimilarity], result of:
      0.010552166 = score(doc=3566,freq=2.0), product of:
        0.06800663 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.038739666 = queryNorm
        0.1551638 = fieldWeight in 3566, 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=3566)
    0.04430903 = weight(_text_:retrieval in 3566) [ClassicSimilarity], result of:
      0.04430903 = score(doc=3566,freq=4.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.37811437 = fieldWeight in 3566, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0625 = fieldNorm(doc=3566)
  0.33333334 = coord(3/9)
    Abstract
    A retrieval experiment was conducted to compare on-line searching using terms opposed to citations. This is the first study in which a single data base was used to retrieve two equivalent sets for each query, one using terms found in the bibliographic record to achieve higher recall, and the other using documents. Reports on the use of a second citation searching strategy. Overall, by using both types of search keys, the total recall is increased.
    Source
    Information, knowledge, evolution. Proceedings of the 44th FID congress, Helsinki, 28.8.-1.9.1988. Ed. by S. Koshiala and R. Launo
  20. Pietris, M.K.D.: Characteristics of LC Subject Headings that should be taken into account when designing on-line catalogues (1987) 0.05 
    0.054060634 = product of:
  0.24327286 = sum of:
    0.18844323 = weight(_text_:line in 2902) [ClassicSimilarity], result of:
      0.18844323 = score(doc=2902,freq=2.0), product of:
        0.21724595 = queryWeight, product of:
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.038739666 = queryNorm
        0.8674188 = fieldWeight in 2902, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6078424 = idf(docFreq=440, maxDocs=44218)
          0.109375 = fieldNorm(doc=2902)
    0.054829627 = weight(_text_:retrieval in 2902) [ClassicSimilarity], result of:
      0.054829627 = score(doc=2902,freq=2.0), product of:
        0.1171842 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.038739666 = queryNorm
        0.46789268 = fieldWeight in 2902, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.109375 = fieldNorm(doc=2902)
  0.22222222 = coord(2/9)
    Theme
    Verbale Doksprachen im Online-Retrieval

Authors

Languages

  • e 1029
  • d 298
  • m 7
  • f 4
  • nl 2
  • More… Less…

Types

  • a 1094
  • m 137
  • s 65
  • d 14
  • r 12
  • x 9
  • n 7
  • b 6
  • ? 5
  • h 4
  • u 4
  • p 2
  • el 1
  • More… Less…

Themes

Subjects

Classifications