Document (#23216)

Author
Feldman, S.
Title
Web search services in 1998 : trends and challenges
Source
Searcher. 6(1998) no.6, 29-39
Year
1998
Abstract
Compares the features and performance of 6 Web search engines: AltaVista, Excite, HotBot, Infoseek, Lycos and Northern Light; 2 metasearch engines: Savvy Search and Inference Find; and the question answering system Ask Jeeves. Results of a standard set of 10 questions posed to each service show little overlap between search engines, so it is important to use more than one Web search engine if a comprehensive search is needed. Discusses technology trends and makes recommendations for Web searching. More and better information has become available on the Web in 1998 and each major search engine is developing a niche market and its own personality
Theme
Suchmaschinen
Object
Lycos
NorthernLight
AltaVista
Excite
HotBot
InfoSeek
SavvySearch
InferenceFind
AskJeeves

Similar documents (author)

  1. Feldman, T.: Multimedia (1994) 5.58 
    5.5805492 = sum of:
  5.5805492 = weight(author_txt:feldman in 7235) [ClassicSimilarity], result of:
    5.5805492 = fieldWeight in 7235, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.928879 = idf(docFreq=15, maxDocs=44421)
      0.625 = fieldNorm(doc=7235)
  2. Feldman, S.E.: Searching natural language systems : searchers know the engine (1994) 5.58 
    5.5805492 = sum of:
  5.5805492 = weight(author_txt:feldman in 1828) [ClassicSimilarity], result of:
    5.5805492 = fieldWeight in 1828, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.928879 = idf(docFreq=15, maxDocs=44421)
      0.625 = fieldNorm(doc=1828)
  3. Feldman, T.: Multimedia : eine Einführung (1995) 5.58 
    5.5805492 = sum of:
  5.5805492 = weight(author_txt:feldman in 2888) [ClassicSimilarity], result of:
    5.5805492 = fieldWeight in 2888, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.928879 = idf(docFreq=15, maxDocs=44421)
      0.625 = fieldNorm(doc=2888)
  4. Feldman, T.: ¬The emergence of the electronic book (1990) 5.58 
    5.5805492 = sum of:
  5.5805492 = weight(author_txt:feldman in 2942) [ClassicSimilarity], result of:
    5.5805492 = fieldWeight in 2942, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.928879 = idf(docFreq=15, maxDocs=44421)
      0.625 = fieldNorm(doc=2942)
  5. Feldman, S.: Testing natural language : comparing DIALOG, TARGET, and DR-LINK (1996) 5.58 
    5.5805492 = sum of:
  5.5805492 = weight(author_txt:feldman in 532) [ClassicSimilarity], result of:
    5.5805492 = fieldWeight in 532, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.928879 = idf(docFreq=15, maxDocs=44421)
      0.625 = fieldNorm(doc=532)

Similar documents (content)

  1. Feldman, S.: "Just the answer, please" : choosing a Web search service (1997) 0.78 
    0.78331876 = sum of:
  0.78331876 = product of:
    1.78027 = sum of:
      0.027660439 = weight(abstract_txt:more in 1770) [ClassicSimilarity], result of:
        0.027660439 = score(doc=1770,freq=1.0), product of:
          0.07446356 = queryWeight, product of:
            1.1612504 = boost
            3.3962307 = idf(docFreq=4044, maxDocs=44421)
            0.018880816 = queryNorm
          0.37146273 = fieldWeight in 1770, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.3962307 = idf(docFreq=4044, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.11668663 = weight(abstract_txt:inference in 1770) [ClassicSimilarity], result of:
        0.11668663 = score(doc=1770,freq=1.0), product of:
          0.15430328 = queryWeight, product of:
            1.1820247 = boost
            6.9139757 = idf(docFreq=119, maxDocs=44421)
            0.018880816 = queryNorm
          0.7562161 = fieldWeight in 1770, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.9139757 = idf(docFreq=119, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.14137408 = weight(abstract_txt:altavista in 1770) [ClassicSimilarity], result of:
        0.14137408 = score(doc=1770,freq=1.0), product of:
          0.17536421 = queryWeight, product of:
            1.2601129 = boost
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.018880816 = queryNorm
          0.80617404 = fieldWeight in 1770, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.14615917 = weight(abstract_txt:lycos in 1770) [ClassicSimilarity], result of:
        0.14615917 = score(doc=1770,freq=1.0), product of:
          0.17929927 = queryWeight, product of:
            1.2741724 = boost
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.018880816 = queryNorm
          0.81516886 = fieldWeight in 1770, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.23072208 = weight(abstract_txt:excite in 1770) [ClassicSimilarity], result of:
        0.23072208 = score(doc=1770,freq=2.0), product of:
          0.1929348 = queryWeight, product of:
            1.3217345 = boost
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.018880816 = queryNorm
          1.1958553 = fieldWeight in 1770, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.23970778 = weight(abstract_txt:infoseek in 1770) [ClassicSimilarity], result of:
        0.23970778 = score(doc=1770,freq=2.0), product of:
          0.1979122 = queryWeight, product of:
            1.3386753 = boost
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.018880816 = queryNorm
          1.2111825 = fieldWeight in 1770, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.049298678 = weight(abstract_txt:each in 1770) [ClassicSimilarity], result of:
        0.049298678 = score(doc=1770,freq=1.0), product of:
          0.10946147 = queryWeight, product of:
            1.4079415 = boost
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.018880816 = queryNorm
          0.4503747 = fieldWeight in 1770, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.1972169 = weight(abstract_txt:hotbot in 1770) [ClassicSimilarity], result of:
        0.1972169 = score(doc=1770,freq=1.0), product of:
          0.21893936 = queryWeight, product of:
            1.4079943 = boost
            8.235732 = idf(docFreq=31, maxDocs=44421)
            0.018880816 = queryNorm
          0.9007832 = fieldWeight in 1770, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.235732 = idf(docFreq=31, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.20494638 = weight(abstract_txt:engine in 1770) [ClassicSimilarity], result of:
        0.20494638 = score(doc=1770,freq=3.0), product of:
          0.19622645 = queryWeight, product of:
            1.8850927 = boost
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.018880816 = queryNorm
          1.0444381 = fieldWeight in 1770, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.15676151 = weight(abstract_txt:engines in 1770) [ClassicSimilarity], result of:
        0.15676151 = score(doc=1770,freq=1.0), product of:
          0.27095333 = queryWeight, product of:
            2.7129815 = boost
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.018880816 = queryNorm
          0.5785554 = fieldWeight in 1770, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
      0.26973632 = weight(abstract_txt:search in 1770) [ClassicSimilarity], result of:
        0.26973632 = score(doc=1770,freq=5.0), product of:
          0.30178437 = queryWeight, product of:
            4.373573 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.018880816 = queryNorm
          0.8938048 = fieldWeight in 1770, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.109375 = fieldNorm(doc=1770)
    0.44 = coord(11/25)
  2. Notess, G.R.: Measuring the size of Internet databases (1997) 0.76 
    0.7647525 = sum of:
  0.7647525 = product of:
    1.738074 = sum of:
      0.11419534 = weight(abstract_txt:compares in 2461) [ClassicSimilarity], result of:
        0.11419534 = score(doc=2461,freq=2.0), product of:
          0.1104389 = queryWeight, product of:
            5.849265 = idf(docFreq=347, maxDocs=44421)
            0.018880816 = queryNorm
          1.0340137 = fieldWeight in 2461, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.849265 = idf(docFreq=347, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.03161193 = weight(abstract_txt:more in 2461) [ClassicSimilarity], result of:
        0.03161193 = score(doc=2461,freq=1.0), product of:
          0.07446356 = queryWeight, product of:
            1.1612504 = boost
            3.3962307 = idf(docFreq=4044, maxDocs=44421)
            0.018880816 = queryNorm
          0.42452884 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.3962307 = idf(docFreq=4044, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.1913819 = weight(abstract_txt:overlap in 2461) [ClassicSimilarity], result of:
        0.1913819 = score(doc=2461,freq=2.0), product of:
          0.15582019 = queryWeight, product of:
            1.1878206 = boost
            6.9478774 = idf(docFreq=115, maxDocs=44421)
            0.018880816 = queryNorm
          1.2282227 = fieldWeight in 2461, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.9478774 = idf(docFreq=115, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.16157037 = weight(abstract_txt:altavista in 2461) [ClassicSimilarity], result of:
        0.16157037 = score(doc=2461,freq=1.0), product of:
          0.17536421 = queryWeight, product of:
            1.2601129 = boost
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.018880816 = queryNorm
          0.9213418 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.16703907 = weight(abstract_txt:lycos in 2461) [ClassicSimilarity], result of:
        0.16703907 = score(doc=2461,freq=1.0), product of:
          0.17929927 = queryWeight, product of:
            1.2741724 = boost
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.018880816 = queryNorm
          0.93162155 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.1864516 = weight(abstract_txt:excite in 2461) [ClassicSimilarity], result of:
        0.1864516 = score(doc=2461,freq=1.0), product of:
          0.1929348 = queryWeight, product of:
            1.3217345 = boost
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.018880816 = queryNorm
          0.966397 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.19371316 = weight(abstract_txt:infoseek in 2461) [ClassicSimilarity], result of:
        0.19371316 = score(doc=2461,freq=1.0), product of:
          0.1979122 = queryWeight, product of:
            1.3386753 = boost
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.018880816 = queryNorm
          0.9787833 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.056341346 = weight(abstract_txt:each in 2461) [ClassicSimilarity], result of:
        0.056341346 = score(doc=2461,freq=1.0), product of:
          0.10946147 = queryWeight, product of:
            1.4079415 = boost
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.018880816 = queryNorm
          0.51471394 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.31875065 = weight(abstract_txt:hotbot in 2461) [ClassicSimilarity], result of:
        0.31875065 = score(doc=2461,freq=2.0), product of:
          0.21893936 = queryWeight, product of:
            1.4079943 = boost
            8.235732 = idf(docFreq=31, maxDocs=44421)
            0.018880816 = queryNorm
          1.4558855 = fieldWeight in 2461, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.235732 = idf(docFreq=31, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.17915602 = weight(abstract_txt:engines in 2461) [ClassicSimilarity], result of:
        0.17915602 = score(doc=2461,freq=1.0), product of:
          0.27095333 = queryWeight, product of:
            2.7129815 = boost
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.018880816 = queryNorm
          0.6612062 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
      0.13786256 = weight(abstract_txt:search in 2461) [ClassicSimilarity], result of:
        0.13786256 = score(doc=2461,freq=1.0), product of:
          0.30178437 = queryWeight, product of:
            4.373573 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.018880816 = queryNorm
          0.45682475 = fieldWeight in 2461, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.125 = fieldNorm(doc=2461)
    0.44 = coord(11/25)
  3. Courlois, M.P.: Cool tools for Web searching : an update (1996) 0.49 
    0.49010655 = sum of:
  0.49010655 = product of:
    1.7503805 = sum of:
      0.24235556 = weight(abstract_txt:altavista in 5211) [ClassicSimilarity], result of:
        0.24235556 = score(doc=5211,freq=1.0), product of:
          0.17536421 = queryWeight, product of:
            1.2601129 = boost
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.018880816 = queryNorm
          1.3820126 = fieldWeight in 5211, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.1875 = fieldNorm(doc=5211)
      0.25055858 = weight(abstract_txt:lycos in 5211) [ClassicSimilarity], result of:
        0.25055858 = score(doc=5211,freq=1.0), product of:
          0.17929927 = queryWeight, product of:
            1.2741724 = boost
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.018880816 = queryNorm
          1.3974323 = fieldWeight in 5211, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.1875 = fieldNorm(doc=5211)
      0.2796774 = weight(abstract_txt:excite in 5211) [ClassicSimilarity], result of:
        0.2796774 = score(doc=5211,freq=1.0), product of:
          0.1929348 = queryWeight, product of:
            1.3217345 = boost
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.018880816 = queryNorm
          1.4495955 = fieldWeight in 5211, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.1875 = fieldNorm(doc=5211)
      0.29056972 = weight(abstract_txt:infoseek in 5211) [ClassicSimilarity], result of:
        0.29056972 = score(doc=5211,freq=1.0), product of:
          0.1979122 = queryWeight, product of:
            1.3386753 = boost
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.018880816 = queryNorm
          1.4681749 = fieldWeight in 5211, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.1875 = fieldNorm(doc=5211)
      0.2116915 = weight(abstract_txt:trends in 5211) [ClassicSimilarity], result of:
        0.2116915 = score(doc=5211,freq=1.0), product of:
          0.20189145 = queryWeight, product of:
            1.9121102 = boost
            5.59222 = idf(docFreq=449, maxDocs=44421)
            0.018880816 = queryNorm
          1.0485412 = fieldWeight in 5211, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.59222 = idf(docFreq=449, maxDocs=44421)
            0.1875 = fieldNorm(doc=5211)
      0.268734 = weight(abstract_txt:engines in 5211) [ClassicSimilarity], result of:
        0.268734 = score(doc=5211,freq=1.0), product of:
          0.27095333 = queryWeight, product of:
            2.7129815 = boost
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.018880816 = queryNorm
          0.99180925 = fieldWeight in 5211, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.1875 = fieldNorm(doc=5211)
      0.20679384 = weight(abstract_txt:search in 5211) [ClassicSimilarity], result of:
        0.20679384 = score(doc=5211,freq=1.0), product of:
          0.30178437 = queryWeight, product of:
            4.373573 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.018880816 = queryNorm
          0.6852371 = fieldWeight in 5211, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.1875 = fieldNorm(doc=5211)
    0.28 = coord(7/25)
  4. Lin, Z.; Baoming, Z.: Comparative study of WWW search tools (1998) 0.46 
    0.4579008 = sum of:
  0.4579008 = product of:
    1.63536 = sum of:
      0.20196298 = weight(abstract_txt:altavista in 4558) [ClassicSimilarity], result of:
        0.20196298 = score(doc=4558,freq=1.0), product of:
          0.17536421 = queryWeight, product of:
            1.2601129 = boost
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.018880816 = queryNorm
          1.1516773 = fieldWeight in 4558, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.15625 = fieldNorm(doc=4558)
      0.20879883 = weight(abstract_txt:lycos in 4558) [ClassicSimilarity], result of:
        0.20879883 = score(doc=4558,freq=1.0), product of:
          0.17929927 = queryWeight, product of:
            1.2741724 = boost
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.018880816 = queryNorm
          1.1645269 = fieldWeight in 4558, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.15625 = fieldNorm(doc=4558)
      0.23306452 = weight(abstract_txt:excite in 4558) [ClassicSimilarity], result of:
        0.23306452 = score(doc=4558,freq=1.0), product of:
          0.1929348 = queryWeight, product of:
            1.3217345 = boost
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.018880816 = queryNorm
          1.2079962 = fieldWeight in 4558, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.15625 = fieldNorm(doc=4558)
      0.24214146 = weight(abstract_txt:infoseek in 4558) [ClassicSimilarity], result of:
        0.24214146 = score(doc=4558,freq=1.0), product of:
          0.1979122 = queryWeight, product of:
            1.3386753 = boost
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.018880816 = queryNorm
          1.2234792 = fieldWeight in 4558, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.15625 = fieldNorm(doc=4558)
      0.28173843 = weight(abstract_txt:hotbot in 4558) [ClassicSimilarity], result of:
        0.28173843 = score(doc=4558,freq=1.0), product of:
          0.21893936 = queryWeight, product of:
            1.4079943 = boost
            8.235732 = idf(docFreq=31, maxDocs=44421)
            0.018880816 = queryNorm
          1.2868332 = fieldWeight in 4558, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.235732 = idf(docFreq=31, maxDocs=44421)
            0.15625 = fieldNorm(doc=4558)
      0.22394502 = weight(abstract_txt:engines in 4558) [ClassicSimilarity], result of:
        0.22394502 = score(doc=4558,freq=1.0), product of:
          0.27095333 = queryWeight, product of:
            2.7129815 = boost
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.018880816 = queryNorm
          0.82650775 = fieldWeight in 4558, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.15625 = fieldNorm(doc=4558)
      0.2437089 = weight(abstract_txt:search in 4558) [ClassicSimilarity], result of:
        0.2437089 = score(doc=4558,freq=2.0), product of:
          0.30178437 = queryWeight, product of:
            4.373573 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.018880816 = queryNorm
          0.8075597 = fieldWeight in 4558, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.15625 = fieldNorm(doc=4558)
    0.28 = coord(7/25)
  5. Fryxell, D.A.: ¬9 Web search sites examined (1996) 0.45 
    0.45449632 = sum of:
  0.45449632 = product of:
    1.6232011 = sum of:
      0.24235556 = weight(abstract_txt:altavista in 5209) [ClassicSimilarity], result of:
        0.24235556 = score(doc=5209,freq=1.0), product of:
          0.17536421 = queryWeight, product of:
            1.2601129 = boost
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.018880816 = queryNorm
          1.3820126 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.1875 = fieldNorm(doc=5209)
      0.25055858 = weight(abstract_txt:lycos in 5209) [ClassicSimilarity], result of:
        0.25055858 = score(doc=5209,freq=1.0), product of:
          0.17929927 = queryWeight, product of:
            1.2741724 = boost
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.018880816 = queryNorm
          1.3974323 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.4529724 = idf(docFreq=69, maxDocs=44421)
            0.1875 = fieldNorm(doc=5209)
      0.2796774 = weight(abstract_txt:excite in 5209) [ClassicSimilarity], result of:
        0.2796774 = score(doc=5209,freq=1.0), product of:
          0.1929348 = queryWeight, product of:
            1.3217345 = boost
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.018880816 = queryNorm
          1.4495955 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.731176 = idf(docFreq=52, maxDocs=44421)
            0.1875 = fieldNorm(doc=5209)
      0.29056972 = weight(abstract_txt:infoseek in 5209) [ClassicSimilarity], result of:
        0.29056972 = score(doc=5209,freq=1.0), product of:
          0.1979122 = queryWeight, product of:
            1.3386753 = boost
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.018880816 = queryNorm
          1.4681749 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.8302665 = idf(docFreq=47, maxDocs=44421)
            0.1875 = fieldNorm(doc=5209)
      0.08451202 = weight(abstract_txt:each in 5209) [ClassicSimilarity], result of:
        0.08451202 = score(doc=5209,freq=1.0), product of:
          0.10946147 = queryWeight, product of:
            1.4079415 = boost
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.018880816 = queryNorm
          0.7720709 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.1875 = fieldNorm(doc=5209)
      0.268734 = weight(abstract_txt:engines in 5209) [ClassicSimilarity], result of:
        0.268734 = score(doc=5209,freq=1.0), product of:
          0.27095333 = queryWeight, product of:
            2.7129815 = boost
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.018880816 = queryNorm
          0.99180925 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2896495 = idf(docFreq=608, maxDocs=44421)
            0.1875 = fieldNorm(doc=5209)
      0.20679384 = weight(abstract_txt:search in 5209) [ClassicSimilarity], result of:
        0.20679384 = score(doc=5209,freq=1.0), product of:
          0.30178437 = queryWeight, product of:
            4.373573 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.018880816 = queryNorm
          0.6852371 = fieldWeight in 5209, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.1875 = fieldNorm(doc=5209)
    0.28 = coord(7/25)