Document (#20413)

Author
Sieverts, E.
Title
Slimmerds onder de zoekmachines
Source
Informatie professional. 2(1998) no.2, S.32-33
Year
1998
Abstract
Web search engines generally use best match search techniques, rather than traditional Boolean operators. Precision in searching will depend on the numbers of selected terms appearing in a document and the inclusion of less-common words in the search string. Users are, therefore, recommended to enter as many words as possible. ExCite and WebCrawler lead users from a relevant document to other documents containing similar word patterns, while MusCat and EuroFerret suggest additional keywords for searching
Footnote
Übers. d. Titels: Top of the class among the search engines
Theme
Suchmaschinen
Object
ExCite
WebCrawler
MusCat
EuroFerret

Similar documents (author)

  1. Sieverts, E.G.: End-user software (1996) 5.49 
    5.4946446 = sum of:
  5.4946446 = weight(author_txt:sieverts in 859) [ClassicSimilarity], result of:
    5.4946446 = fieldWeight in 859, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.791431 = idf(docFreq=17, maxDocs=43556)
      0.625 = fieldNorm(doc=859)
  2. Sieverts, E.: ProCite voor de eingebruiker (1997) 5.49 
    5.4946446 = sum of:
  5.4946446 = weight(author_txt:sieverts in 1088) [ClassicSimilarity], result of:
    5.4946446 = fieldWeight in 1088, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.791431 = idf(docFreq=17, maxDocs=43556)
      0.625 = fieldNorm(doc=1088)
  3. Sieverts, E.: Citatie-zoeken op het Web (1997) 5.49 
    5.4946446 = sum of:
  5.4946446 = weight(author_txt:sieverts in 1141) [ClassicSimilarity], result of:
    5.4946446 = fieldWeight in 1141, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.791431 = idf(docFreq=17, maxDocs=43556)
      0.625 = fieldNorm(doc=1141)
  4. Sieverts, E.: Voor iederen een eigen Alta Vista (1997) 5.49 
    5.4946446 = sum of:
  5.4946446 = weight(author_txt:sieverts in 3411) [ClassicSimilarity], result of:
    5.4946446 = fieldWeight in 3411, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.791431 = idf(docFreq=17, maxDocs=43556)
      0.625 = fieldNorm(doc=3411)
  5. Sieverts, E.: Liever browsen dan zoeken (1998) 5.49 
    5.4946446 = sum of:
  5.4946446 = weight(author_txt:sieverts in 5720) [ClassicSimilarity], result of:
    5.4946446 = fieldWeight in 5720, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.791431 = idf(docFreq=17, maxDocs=43556)
      0.625 = fieldNorm(doc=5720)

Similar documents (content)

  1. Courlois, M.P.: Cool tools for Web searching : an update (1996) 0.19 
    0.19125219 = sum of:
  0.19125219 = product of:
    1.1953262 = sum of:
      0.38687 = weight(abstract_txt:excite in 5209) [ClassicSimilarity], result of:
        0.38687 = score(doc=5209,freq=1.0), product of:
          0.2675619 = queryWeight, product of:
            1.4176667 = boost
            7.7115107 = idf(docFreq=52, maxDocs=43556)
            0.024474323 = queryNorm
          1.4459083 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.7115107 = idf(docFreq=52, maxDocs=43556)
            0.1875 = fieldNorm(doc=5209)
      0.1320547 = weight(abstract_txt:searching in 5209) [ClassicSimilarity], result of:
        0.1320547 = score(doc=5209,freq=1.0), product of:
          0.16464941 = queryWeight, product of:
            1.5727406 = boost
            4.2775235 = idf(docFreq=1642, maxDocs=43556)
            0.024474323 = queryNorm
          0.8020357 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.2775235 = idf(docFreq=1642, maxDocs=43556)
            0.1875 = fieldNorm(doc=5209)
      0.55286187 = weight(abstract_txt:webcrawler in 5209) [ClassicSimilarity], result of:
        0.55286187 = score(doc=5209,freq=1.0), product of:
          0.33946267 = queryWeight, product of:
            1.5968275 = boost
            8.68607 = idf(docFreq=19, maxDocs=43556)
            0.024474323 = queryNorm
          1.6286383 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.68607 = idf(docFreq=19, maxDocs=43556)
            0.1875 = fieldNorm(doc=5209)
      0.123539604 = weight(abstract_txt:search in 5209) [ClassicSimilarity], result of:
        0.123539604 = score(doc=5209,freq=1.0), product of:
          0.18028468 = queryWeight, product of:
            2.0155892 = boost
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.024474323 = queryNorm
          0.68524736 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.1875 = fieldNorm(doc=5209)
    0.16 = coord(4/25)
  2. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.18 
    0.1805946 = sum of:
  0.1805946 = product of:
    0.64498067 = sum of:
      0.056575887 = weight(abstract_txt:word in 3507) [ClassicSimilarity], result of:
        0.056575887 = score(doc=3507,freq=1.0), product of:
          0.13313003 = queryWeight, product of:
            5.4395795 = idf(docFreq=513, maxDocs=43556)
            0.024474323 = queryNorm
          0.42496714 = fieldWeight in 3507, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.4395795 = idf(docFreq=513, maxDocs=43556)
            0.078125 = fieldNorm(doc=3507)
      0.118012786 = weight(abstract_txt:precision in 3507) [ClassicSimilarity], result of:
        0.118012786 = score(doc=3507,freq=4.0), product of:
          0.13691609 = queryWeight, product of:
            1.0141197 = boost
            5.516385 = idf(docFreq=475, maxDocs=43556)
            0.024474323 = queryNorm
          0.86193514 = fieldWeight in 3507, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            5.516385 = idf(docFreq=475, maxDocs=43556)
            0.078125 = fieldNorm(doc=3507)
      0.12049622 = weight(abstract_txt:boolean in 3507) [ClassicSimilarity], result of:
        0.12049622 = score(doc=3507,freq=2.0), product of:
          0.17491513 = queryWeight, product of:
            1.1462404 = boost
            6.2350655 = idf(docFreq=231, maxDocs=43556)
            0.024474323 = queryNorm
          0.6888839 = fieldWeight in 3507, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.2350655 = idf(docFreq=231, maxDocs=43556)
            0.078125 = fieldNorm(doc=3507)
      0.09079597 = weight(abstract_txt:match in 3507) [ClassicSimilarity], result of:
        0.09079597 = score(doc=3507,freq=1.0), product of:
          0.18248737 = queryWeight, product of:
            1.1707884 = boost
            6.3685966 = idf(docFreq=202, maxDocs=43556)
            0.024474323 = queryNorm
          0.4975466 = fieldWeight in 3507, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.3685966 = idf(docFreq=202, maxDocs=43556)
            0.078125 = fieldNorm(doc=3507)
      0.07841673 = weight(abstract_txt:document in 3507) [ClassicSimilarity], result of:
        0.07841673 = score(doc=3507,freq=2.0), product of:
          0.16549857 = queryWeight, product of:
            1.5767909 = boost
            4.28854 = idf(docFreq=1624, maxDocs=43556)
            0.024474323 = queryNorm
          0.4738212 = fieldWeight in 3507, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.28854 = idf(docFreq=1624, maxDocs=43556)
            0.078125 = fieldNorm(doc=3507)
      0.107886694 = weight(abstract_txt:words in 3507) [ClassicSimilarity], result of:
        0.107886694 = score(doc=3507,freq=1.0), product of:
          0.25793505 = queryWeight, product of:
            1.9684852 = boost
            5.353866 = idf(docFreq=559, maxDocs=43556)
            0.024474323 = queryNorm
          0.4182708 = fieldWeight in 3507, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.353866 = idf(docFreq=559, maxDocs=43556)
            0.078125 = fieldNorm(doc=3507)
      0.07279641 = weight(abstract_txt:search in 3507) [ClassicSimilarity], result of:
        0.07279641 = score(doc=3507,freq=2.0), product of:
          0.18028468 = queryWeight, product of:
            2.0155892 = boost
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.024474323 = queryNorm
          0.40378588 = fieldWeight in 3507, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.078125 = fieldNorm(doc=3507)
    0.28 = coord(7/25)
  3. Ahmed, F.; Nürnberger, A.: Evaluation of n-gram conflation approaches for Arabic text retrieval (2009) 0.18 
    0.17703535 = sum of:
  0.17703535 = product of:
    0.5532355 = sum of:
      0.06400831 = weight(abstract_txt:word in 3) [ClassicSimilarity], result of:
        0.06400831 = score(doc=3,freq=2.0), product of:
          0.13313003 = queryWeight, product of:
            5.4395795 = idf(docFreq=513, maxDocs=43556)
            0.024474323 = queryNorm
          0.48079544 = fieldWeight in 3, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.4395795 = idf(docFreq=513, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
      0.045358095 = weight(abstract_txt:therefore in 3) [ClassicSimilarity], result of:
        0.045358095 = score(doc=3,freq=1.0), product of:
          0.13332093 = queryWeight, product of:
            1.0007167 = boost
            5.443478 = idf(docFreq=511, maxDocs=43556)
            0.024474323 = queryNorm
          0.34021738 = fieldWeight in 3, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.443478 = idf(docFreq=511, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
      0.047205117 = weight(abstract_txt:precision in 3) [ClassicSimilarity], result of:
        0.047205117 = score(doc=3,freq=1.0), product of:
          0.13691609 = queryWeight, product of:
            1.0141197 = boost
            5.516385 = idf(docFreq=475, maxDocs=43556)
            0.024474323 = queryNorm
          0.34477407 = fieldWeight in 3, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.516385 = idf(docFreq=475, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
      0.05081398 = weight(abstract_txt:additional in 3) [ClassicSimilarity], result of:
        0.05081398 = score(doc=3,freq=1.0), product of:
          0.14380829 = queryWeight, product of:
            1.0393312 = boost
            5.6535244 = idf(docFreq=414, maxDocs=43556)
            0.024474323 = queryNorm
          0.35334527 = fieldWeight in 3, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.6535244 = idf(docFreq=414, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
      0.09760934 = weight(abstract_txt:depend in 3) [ClassicSimilarity], result of:
        0.09760934 = score(doc=3,freq=1.0), product of:
          0.22222318 = queryWeight, product of:
            1.2919827 = boost
            7.0278425 = idf(docFreq=104, maxDocs=43556)
            0.024474323 = queryNorm
          0.43924016 = fieldWeight in 3, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.0278425 = idf(docFreq=104, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
      0.10369414 = weight(abstract_txt:string in 3) [ClassicSimilarity], result of:
        0.10369414 = score(doc=3,freq=1.0), product of:
          0.23136513 = queryWeight, product of:
            1.31829 = boost
            7.1709433 = idf(docFreq=90, maxDocs=43556)
            0.024474323 = queryNorm
          0.44818395 = fieldWeight in 3, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.1709433 = idf(docFreq=90, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
      0.08630936 = weight(abstract_txt:words in 3) [ClassicSimilarity], result of:
        0.08630936 = score(doc=3,freq=1.0), product of:
          0.25793505 = queryWeight, product of:
            1.9684852 = boost
            5.353866 = idf(docFreq=559, maxDocs=43556)
            0.024474323 = queryNorm
          0.33461663 = fieldWeight in 3, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.353866 = idf(docFreq=559, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
      0.058237128 = weight(abstract_txt:search in 3) [ClassicSimilarity], result of:
        0.058237128 = score(doc=3,freq=2.0), product of:
          0.18028468 = queryWeight, product of:
            2.0155892 = boost
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.024474323 = queryNorm
          0.3230287 = fieldWeight in 3, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.0625 = fieldNorm(doc=3)
    0.32 = coord(8/25)
  4. McJunkin, M.C.: Precision and recall in title keyword searching (1995) 0.18 
    0.17671458 = sum of:
  0.17671458 = product of:
    0.7363108 = sum of:
      0.102202065 = weight(abstract_txt:precision in 3417) [ClassicSimilarity], result of:
        0.102202065 = score(doc=3417,freq=3.0), product of:
          0.13691609 = queryWeight, product of:
            1.0141197 = boost
            5.516385 = idf(docFreq=475, maxDocs=43556)
            0.024474323 = queryNorm
          0.7464577 = fieldWeight in 3417, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.516385 = idf(docFreq=475, maxDocs=43556)
            0.078125 = fieldNorm(doc=3417)
      0.17318437 = weight(abstract_txt:keywords in 3417) [ClassicSimilarity], result of:
        0.17318437 = score(doc=3417,freq=5.0), product of:
          0.16413614 = queryWeight, product of:
            1.1103607 = boost
            6.0398955 = idf(docFreq=281, maxDocs=43556)
            0.024474323 = queryNorm
          1.0551263 = fieldWeight in 3417, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            6.0398955 = idf(docFreq=281, maxDocs=43556)
            0.078125 = fieldNorm(doc=3417)
      0.09079597 = weight(abstract_txt:match in 3417) [ClassicSimilarity], result of:
        0.09079597 = score(doc=3417,freq=1.0), product of:
          0.18248737 = queryWeight, product of:
            1.1707884 = boost
            6.3685966 = idf(docFreq=202, maxDocs=43556)
            0.024474323 = queryNorm
          0.4975466 = fieldWeight in 3417, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.3685966 = idf(docFreq=202, maxDocs=43556)
            0.078125 = fieldNorm(doc=3417)
      0.21951798 = weight(abstract_txt:operators in 3417) [ClassicSimilarity], result of:
        0.21951798 = score(doc=3417,freq=3.0), product of:
          0.22792646 = queryWeight, product of:
            1.3084568 = boost
            7.1174545 = idf(docFreq=95, maxDocs=43556)
            0.024474323 = queryNorm
          0.9631088 = fieldWeight in 3417, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            7.1174545 = idf(docFreq=95, maxDocs=43556)
            0.078125 = fieldNorm(doc=3417)
      0.077813976 = weight(abstract_txt:searching in 3417) [ClassicSimilarity], result of:
        0.077813976 = score(doc=3417,freq=2.0), product of:
          0.16464941 = queryWeight, product of:
            1.5727406 = boost
            4.2775235 = idf(docFreq=1642, maxDocs=43556)
            0.024474323 = queryNorm
          0.47260404 = fieldWeight in 3417, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.2775235 = idf(docFreq=1642, maxDocs=43556)
            0.078125 = fieldNorm(doc=3417)
      0.07279641 = weight(abstract_txt:search in 3417) [ClassicSimilarity], result of:
        0.07279641 = score(doc=3417,freq=2.0), product of:
          0.18028468 = queryWeight, product of:
            2.0155892 = boost
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.024474323 = queryNorm
          0.40378588 = fieldWeight in 3417, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.6546526 = idf(docFreq=3062, maxDocs=43556)
            0.078125 = fieldNorm(doc=3417)
    0.24 = coord(6/25)
  5. Spink, A.; Wolfram, D.; Jansen, B.J.; Saracevic, T.: Searching the Web : the public and their queries (2001) 0.17 
    0.17117195 = sum of:
  0.17117195 = product of:
    0.61132836 = sum of:
      0.07229773 = weight(abstract_txt:boolean in 978) [ClassicSimilarity], result of:
        0.07229773 = score(doc=978,freq=2.0), product of:
          0.17491513 = queryWeight, product of:
            1.1462404 = boost
            6.2350655 = idf(docFreq=231, maxDocs=43556)
            0.024474323 = queryNorm
          0.41333032 = fieldWeight in 978, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.2350655 = idf(docFreq=231, maxDocs=43556)
            0.046875 = fieldNorm(doc=978)
      0.052213646 = weight(abstract_txt:containing in 978) [ClassicSimilarity], result of:
        0.052213646 = score(doc=978,freq=1.0), product of:
          0.17739591 = queryWeight, product of:
            1.1543401 = boost
            6.279125 = idf(docFreq=221, maxDocs=43556)
            0.024474323 = queryNorm
          0.294334 = fieldWeight in 978, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.279125 = idf(docFreq=221, maxDocs=43556)
            0.046875 = fieldNorm(doc=978)
      0.07604326 = weight(abstract_txt:operators in 978) [ClassicSimilarity], result of:
        0.07604326 = score(doc=978,freq=1.0), product of:
          0.22792646 = queryWeight, product of:
            1.3084568 = boost
            7.1174545 = idf(docFreq=95, maxDocs=43556)
            0.024474323 = queryNorm
          0.33363068 = fieldWeight in 978, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.1174545 = idf(docFreq=95, maxDocs=43556)
            0.046875 = fieldNorm(doc=978)
      0.03844788 = weight(abstract_txt:users in 978) [ClassicSimilarity], result of:
        0.03844788 = score(doc=978,freq=4.0), product of:
          0.11481339 = queryWeight, product of:
            1.3133281 = boost
            3.5719764 = idf(docFreq=3326, maxDocs=43556)
            0.024474323 = queryNorm
          0.33487278 = fieldWeight in 978, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5719764 = idf(docFreq=3326, maxDocs=43556)
            0.046875 = fieldNorm(doc=978)
      0.193435 = weight(abstract_txt:excite in 978) [ClassicSimilarity], result of:
        0.193435 = score(doc=978,freq=4.0), product of:
          0.2675619 = queryWeight, product of:
            1.4176667 = boost
            7.7115107 = idf(docFreq=52, maxDocs=43556)
            0.024474323 = queryNorm
          0.72295415 = fieldWeight in 978, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            7.7115107 = idf(docFreq=52, maxDocs=43556)
            0.046875 = fieldNorm(doc=978)
      0.08734597 = weight(abstract_txt:searching in 978) [ClassicSimilarity], result of:
        0.08734597 = score(doc=978,freq=7.0), product of:
          0.16464941 = queryWeight, product of:
            1.5727406 = boost
            4.2775235 = idf(docFreq=1642, maxDocs=43556)
            0.024474323 = queryNorm
          0.5304967 = fieldWeight in 978, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            4.2775235 = idf(docFreq=1642, maxDocs=43556)
            0.046875 = fieldNorm(doc=978)
      0.09154489 = weight(abstract_txt:words in 978) [ClassicSimilarity], result of:
        0.09154489 = score(doc=978,freq=2.0), product of:
          0.25793505 = queryWeight, product of:
            1.9684852 = boost
            5.353866 = idf(docFreq=559, maxDocs=43556)
            0.024474323 = queryNorm
          0.35491452 = fieldWeight in 978, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.353866 = idf(docFreq=559, maxDocs=43556)
            0.046875 = fieldNorm(doc=978)
    0.28 = coord(7/25)