Document (#7952)

Author
O'Leary, M.
Title
DIALOG TARGET's new age searching
Source
Information today. 10(1993) no.11, S.49-50
Year
1993
Abstract
Relevance search engines, which measure the occurrence of search terms in a group of retrieved records and rank them accordingly, often produce better results than refined Boolean searches. Relevance searching has emerged from the research stage to be on the verge of becoming the standard retrieval method. Describes and evaluates the operation of DIALOG's TARGET, a major accomplishment, despite some rough edges
Theme
Retrievalalgorithmen

Similar documents (author)

  1. O'Leary, M.: FirstSearch takes the lead (1992) 5.47
    5.47028 = sum of:
      5.47028 = weight(author_txt:o'leary in 3121) [ClassicSimilarity], result of:
        5.47028 = fieldWeight in 3121, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.752448 = idf(docFreq=18, maxDocs=44218)
          0.625 = fieldNorm(doc=3121)
    
  2. O'Leary, M.: DIALOG Select : DIALOG for knowledge worker-on the Web (1997) 5.47
    5.47028 = sum of:
      5.47028 = weight(author_txt:o'leary in 6489) [ClassicSimilarity], result of:
        5.47028 = fieldWeight in 6489, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.752448 = idf(docFreq=18, maxDocs=44218)
          0.625 = fieldNorm(doc=6489)
    
  3. O'Leary, M.: Images on CompuServe : the best of 'Bettmann' online (1995) 5.47
    5.47028 = sum of:
      5.47028 = weight(author_txt:o'leary in 1947) [ClassicSimilarity], result of:
        5.47028 = fieldWeight in 1947, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.752448 = idf(docFreq=18, maxDocs=44218)
          0.625 = fieldNorm(doc=1947)
    
  4. O'Leary, D.E.: Using AI in knowledge management : knowledge bases and ontologies (1998) 5.47
    5.47028 = sum of:
      5.47028 = weight(author_txt:o'leary in 2575) [ClassicSimilarity], result of:
        5.47028 = fieldWeight in 2575, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.752448 = idf(docFreq=18, maxDocs=44218)
          0.625 = fieldNorm(doc=2575)
    
  5. O'Leary, D.E.O.: ¬The relationship between errors and size in knowledge-based systems (1996) 5.47
    5.47028 = sum of:
      5.47028 = weight(author_txt:o'leary in 4747) [ClassicSimilarity], result of:
        5.47028 = fieldWeight in 4747, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.752448 = idf(docFreq=18, maxDocs=44218)
          0.625 = fieldNorm(doc=4747)
    

Similar documents (content)

  1. Tenopir, C.: Online databases : overcoming the 'black box' syndrome (1994) 0.23
    0.22739762 = sum of:
      0.22739762 = product of:
        0.9474901 = sum of:
          0.07279637 = weight(abstract_txt:searches in 8542) [ClassicSimilarity], result of:
            0.07279637 = score(doc=8542,freq=1.0), product of:
              0.11140233 = queryWeight, product of:
                5.227637 = idf(docFreq=644, maxDocs=44218)
                0.021310266 = queryNorm
              0.6534546 = fieldWeight in 8542, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.227637 = idf(docFreq=644, maxDocs=44218)
                0.125 = fieldNorm(doc=8542)
          0.075931266 = weight(abstract_txt:engines in 8542) [ClassicSimilarity], result of:
            0.075931266 = score(doc=8542,freq=1.0), product of:
              0.11457809 = queryWeight, product of:
                1.0141534 = boost
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.021310266 = queryNorm
              0.6627032 = fieldWeight in 8542, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.125 = fieldNorm(doc=8542)
          0.17594613 = weight(abstract_txt:boolean in 8542) [ClassicSimilarity], result of:
            0.17594613 = score(doc=8542,freq=2.0), product of:
              0.15924445 = queryWeight, product of:
                1.1955975 = boost
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.021310266 = queryNorm
              1.1048808 = fieldWeight in 8542, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.125 = fieldNorm(doc=8542)
          0.1483671 = weight(abstract_txt:dialog in 8542) [ClassicSimilarity], result of:
            0.1483671 = score(doc=8542,freq=1.0), product of:
              0.17907965 = queryWeight, product of:
                1.2678736 = boost
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.021310266 = queryNorm
              0.8284979 = fieldWeight in 8542, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.125 = fieldNorm(doc=8542)
          0.086403996 = weight(abstract_txt:search in 8542) [ClassicSimilarity], result of:
            0.086403996 = score(doc=8542,freq=3.0), product of:
              0.109097116 = queryWeight, product of:
                1.3995051 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.021310266 = queryNorm
              0.7919916 = fieldWeight in 8542, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.125 = fieldNorm(doc=8542)
          0.38804522 = weight(abstract_txt:dialog's in 8542) [ClassicSimilarity], result of:
            0.38804522 = score(doc=8542,freq=1.0), product of:
              0.33994555 = queryWeight, product of:
                1.7468578 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.021310266 = queryNorm
              1.1414922 = fieldWeight in 8542, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.125 = fieldNorm(doc=8542)
        0.24 = coord(6/25)
    
  2. O'Leary, M.: DIALOG Select : DIALOG for knowledge worker-on the Web (1997) 0.15
    0.1508606 = sum of:
      0.1508606 = product of:
        0.754303 = sum of:
          0.10651565 = weight(abstract_txt:operation in 6489) [ClassicSimilarity], result of:
            0.10651565 = score(doc=6489,freq=1.0), product of:
              0.1739359 = queryWeight, product of:
                1.2495323 = boost
                6.532101 = idf(docFreq=174, maxDocs=44218)
                0.021310266 = queryNorm
              0.6123845 = fieldWeight in 6489, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.532101 = idf(docFreq=174, maxDocs=44218)
                0.09375 = fieldNorm(doc=6489)
          0.11127534 = weight(abstract_txt:dialog in 6489) [ClassicSimilarity], result of:
            0.11127534 = score(doc=6489,freq=1.0), product of:
              0.17907965 = queryWeight, product of:
                1.2678736 = boost
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.021310266 = queryNorm
              0.6213734 = fieldWeight in 6489, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.09375 = fieldNorm(doc=6489)
          0.064803 = weight(abstract_txt:search in 6489) [ClassicSimilarity], result of:
            0.064803 = score(doc=6489,freq=3.0), product of:
              0.109097116 = queryWeight, product of:
                1.3995051 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.021310266 = queryNorm
              0.59399366 = fieldWeight in 6489, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.09375 = fieldNorm(doc=6489)
          0.060124885 = weight(abstract_txt:searching in 6489) [ClassicSimilarity], result of:
            0.060124885 = score(doc=6489,freq=1.0), product of:
              0.14967863 = queryWeight, product of:
                1.6392597 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.021310266 = queryNorm
              0.40169317 = fieldWeight in 6489, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.09375 = fieldNorm(doc=6489)
          0.41158408 = weight(abstract_txt:dialog's in 6489) [ClassicSimilarity], result of:
            0.41158408 = score(doc=6489,freq=2.0), product of:
              0.33994555 = queryWeight, product of:
                1.7468578 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.021310266 = queryNorm
              1.2107353 = fieldWeight in 6489, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.09375 = fieldNorm(doc=6489)
        0.2 = coord(5/25)
    
  3. Barker, A.L.: Non-Boolean searching on commercial online systems : optimising use of Dialog TARGET and ESA/IRS QUESTQUORUM (1995) 0.14
    0.14026266 = sum of:
      0.14026266 = product of:
        0.7013133 = sum of:
          0.06369682 = weight(abstract_txt:searches in 3853) [ClassicSimilarity], result of:
            0.06369682 = score(doc=3853,freq=1.0), product of:
              0.11140233 = queryWeight, product of:
                5.227637 = idf(docFreq=644, maxDocs=44218)
                0.021310266 = queryNorm
              0.57177275 = fieldWeight in 3853, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.227637 = idf(docFreq=644, maxDocs=44218)
                0.109375 = fieldNorm(doc=3853)
          0.15395287 = weight(abstract_txt:boolean in 3853) [ClassicSimilarity], result of:
            0.15395287 = score(doc=3853,freq=2.0), product of:
              0.15924445 = queryWeight, product of:
                1.1955975 = boost
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.021310266 = queryNorm
              0.9667707 = fieldWeight in 3853, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.109375 = fieldNorm(doc=3853)
          0.17857277 = weight(abstract_txt:target in 3853) [ClassicSimilarity], result of:
            0.17857277 = score(doc=3853,freq=2.0), product of:
              0.17579882 = queryWeight, product of:
                1.2562059 = boost
                6.5669885 = idf(docFreq=168, maxDocs=44218)
                0.021310266 = queryNorm
              1.0157791 = fieldWeight in 3853, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.5669885 = idf(docFreq=168, maxDocs=44218)
                0.109375 = fieldNorm(doc=3853)
          0.18359494 = weight(abstract_txt:dialog in 3853) [ClassicSimilarity], result of:
            0.18359494 = score(doc=3853,freq=2.0), product of:
              0.17907965 = queryWeight, product of:
                1.2678736 = boost
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.021310266 = queryNorm
              1.0252138 = fieldWeight in 3853, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.109375 = fieldNorm(doc=3853)
          0.12149591 = weight(abstract_txt:searching in 3853) [ClassicSimilarity], result of:
            0.12149591 = score(doc=3853,freq=3.0), product of:
              0.14967863 = queryWeight, product of:
                1.6392597 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.021310266 = queryNorm
              0.8117118 = fieldWeight in 3853, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.109375 = fieldNorm(doc=3853)
        0.2 = coord(5/25)
    
  4. Feldman, S.E.: Searching natural language systems : searchers know the engine (1994) 0.13
    0.12776166 = sum of:
      0.12776166 = product of:
        0.5323403 = sum of:
          0.06643986 = weight(abstract_txt:engines in 1760) [ClassicSimilarity], result of:
            0.06643986 = score(doc=1760,freq=1.0), product of:
              0.11457809 = queryWeight, product of:
                1.0141534 = boost
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.021310266 = queryNorm
              0.57986534 = fieldWeight in 1760, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3016257 = idf(docFreq=598, maxDocs=44218)
                0.109375 = fieldNorm(doc=1760)
          0.10886112 = weight(abstract_txt:boolean in 1760) [ClassicSimilarity], result of:
            0.10886112 = score(doc=1760,freq=1.0), product of:
              0.15924445 = queryWeight, product of:
                1.1955975 = boost
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.021310266 = queryNorm
              0.68361014 = fieldWeight in 1760, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.109375 = fieldNorm(doc=1760)
          0.11819397 = weight(abstract_txt:rank in 1760) [ClassicSimilarity], result of:
            0.11819397 = score(doc=1760,freq=1.0), product of:
              0.16822065 = queryWeight, product of:
                1.228832 = boost
                6.4238877 = idf(docFreq=194, maxDocs=44218)
                0.021310266 = queryNorm
              0.7026127 = fieldWeight in 1760, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4238877 = idf(docFreq=194, maxDocs=44218)
                0.109375 = fieldNorm(doc=1760)
          0.061729997 = weight(abstract_txt:search in 1760) [ClassicSimilarity], result of:
            0.061729997 = score(doc=1760,freq=2.0), product of:
              0.109097116 = queryWeight, product of:
                1.3995051 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.021310266 = queryNorm
              0.5658261 = fieldWeight in 1760, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.109375 = fieldNorm(doc=1760)
          0.0701457 = weight(abstract_txt:searching in 1760) [ClassicSimilarity], result of:
            0.0701457 = score(doc=1760,freq=1.0), product of:
              0.14967863 = queryWeight, product of:
                1.6392597 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.021310266 = queryNorm
              0.46864203 = fieldWeight in 1760, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.109375 = fieldNorm(doc=1760)
          0.106969655 = weight(abstract_txt:relevance in 1760) [ClassicSimilarity], result of:
            0.106969655 = score(doc=1760,freq=1.0), product of:
              0.19830461 = queryWeight, product of:
                1.8868365 = boost
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.021310266 = queryNorm
              0.5394209 = fieldWeight in 1760, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.109375 = fieldNorm(doc=1760)
        0.24 = coord(6/25)
    
  5. Feldman, S.: Testing natural language : comparing DIALOG, TARGET, and DR-LINK (1996) 0.12
    0.12420981 = sum of:
      0.12420981 = product of:
        0.5175409 = sum of:
          0.09330954 = weight(abstract_txt:boolean in 7463) [ClassicSimilarity], result of:
            0.09330954 = score(doc=7463,freq=1.0), product of:
              0.15924445 = queryWeight, product of:
                1.1955975 = boost
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.021310266 = queryNorm
              0.58595157 = fieldWeight in 7463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2501497 = idf(docFreq=231, maxDocs=44218)
                0.09375 = fieldNorm(doc=7463)
          0.108231455 = weight(abstract_txt:target in 7463) [ClassicSimilarity], result of:
            0.108231455 = score(doc=7463,freq=1.0), product of:
              0.17579882 = queryWeight, product of:
                1.2562059 = boost
                6.5669885 = idf(docFreq=168, maxDocs=44218)
                0.021310266 = queryNorm
              0.6156552 = fieldWeight in 7463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5669885 = idf(docFreq=168, maxDocs=44218)
                0.09375 = fieldNorm(doc=7463)
          0.11127534 = weight(abstract_txt:dialog in 7463) [ClassicSimilarity], result of:
            0.11127534 = score(doc=7463,freq=1.0), product of:
              0.17907965 = queryWeight, product of:
                1.2678736 = boost
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.021310266 = queryNorm
              0.6213734 = fieldWeight in 7463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.627983 = idf(docFreq=158, maxDocs=44218)
                0.09375 = fieldNorm(doc=7463)
          0.052911427 = weight(abstract_txt:search in 7463) [ClassicSimilarity], result of:
            0.052911427 = score(doc=7463,freq=2.0), product of:
              0.109097116 = queryWeight, product of:
                1.3995051 = boost
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.021310266 = queryNorm
              0.48499382 = fieldWeight in 7463, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6580524 = idf(docFreq=3098, maxDocs=44218)
                0.09375 = fieldNorm(doc=7463)
          0.060124885 = weight(abstract_txt:searching in 7463) [ClassicSimilarity], result of:
            0.060124885 = score(doc=7463,freq=1.0), product of:
              0.14967863 = queryWeight, product of:
                1.6392597 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.021310266 = queryNorm
              0.40169317 = fieldWeight in 7463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.09375 = fieldNorm(doc=7463)
          0.09168827 = weight(abstract_txt:relevance in 7463) [ClassicSimilarity], result of:
            0.09168827 = score(doc=7463,freq=1.0), product of:
              0.19830461 = queryWeight, product of:
                1.8868365 = boost
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.021310266 = queryNorm
              0.46236074 = fieldWeight in 7463, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.931848 = idf(docFreq=866, maxDocs=44218)
                0.09375 = fieldNorm(doc=7463)
        0.24 = coord(6/25)