Document (#16494)

Author
Chu, H.
Rosenthal, M.
Title
Search engines for the World Wide Web : a comparative study and evaluation methodology
Source
Global complexity: information, chaos and control. Proceedings of the 59th Annual Meeting of the American Society for Information Science, ASIS'96, Baltimore, Maryland, 21-24 Oct 1996. Ed.: S. Hardin
Imprint
Medford, NJ : Learned Information
Year
1996
Pages
S.127-135
Abstract
Compares 3 WWW search engines (AltaVista, Excite, and Lycos) in terms of their search capabilities and retrieval performances using sample queires drawn from real reference questions. AltaVista outperformed Excite and Lycos in both search facilities and retrieval performance although Lycos had the largest coverage of WWW resources among the 3 WWW search engines examined. Proposes a methodology for evaluating other WWW search engines
Theme
Suchmaschinen
Object
AltaVista
Lycos
Excite

Similar documents (content)

  1. Clarke, S.J.; Willett, P.: Estimating the recall performance of Web search engines (1997) 0.53
    0.5335627 = sum of:
      0.5335627 = product of:
        1.6673836 = sum of:
          0.066688284 = weight(abstract_txt:evaluating in 2761) [ClassicSimilarity], result of:
            0.066688284 = score(doc=2761,freq=1.0), product of:
              0.104141116 = queryWeight, product of:
                1.2195779 = boost
                5.854762 = idf(docFreq=336, maxDocs=43254)
                0.014584899 = queryNorm
              0.6403646 = fieldWeight in 2761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.854762 = idf(docFreq=336, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
          0.08739433 = weight(abstract_txt:comparative in 2761) [ClassicSimilarity], result of:
            0.08739433 = score(doc=2761,freq=1.0), product of:
              0.12471289 = queryWeight, product of:
                1.3346092 = boost
                6.4069867 = idf(docFreq=193, maxDocs=43254)
                0.014584899 = queryNorm
              0.7007642 = fieldWeight in 2761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4069867 = idf(docFreq=193, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
          0.027765315 = weight(abstract_txt:retrieval in 2761) [ClassicSimilarity], result of:
            0.027765315 = score(doc=2761,freq=1.0), product of:
              0.07315897 = queryWeight, product of:
                1.4455969 = boost
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.014584899 = queryNorm
              0.3795203 = fieldWeight in 2761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
          0.2632507 = weight(abstract_txt:altavista in 2761) [ClassicSimilarity], result of:
            0.2632507 = score(doc=2761,freq=1.0), product of:
              0.32772702 = queryWeight, product of:
                3.0596344 = boost
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.014584899 = queryNorm
              0.8032622 = fieldWeight in 2761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
          0.3039444 = weight(abstract_txt:excite in 2761) [ClassicSimilarity], result of:
            0.3039444 = score(doc=2761,freq=1.0), product of:
              0.36068547 = queryWeight, product of:
                3.2097983 = boost
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.014584899 = queryNorm
              0.8426855 = fieldWeight in 2761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
          0.3417213 = weight(abstract_txt:engines in 2761) [ClassicSimilarity], result of:
            0.3417213 = score(doc=2761,freq=3.0), product of:
              0.34068274 = queryWeight, product of:
                4.411675 = boost
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.014584899 = queryNorm
              1.0030484 = fieldWeight in 2761, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
          0.16832879 = weight(abstract_txt:search in 2761) [ClassicSimilarity], result of:
            0.16832879 = score(doc=2761,freq=3.0), product of:
              0.24324176 = queryWeight, product of:
                4.5655503 = boost
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.014584899 = queryNorm
              0.6920226 = fieldWeight in 2761, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
          0.40829048 = weight(abstract_txt:lycos in 2761) [ClassicSimilarity], result of:
            0.40829048 = score(doc=2761,freq=1.0), product of:
              0.5026617 = queryWeight, product of:
                4.640844 = boost
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.014584899 = queryNorm
              0.812257 = fieldWeight in 2761, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.109375 = fieldNorm(doc=2761)
        0.32 = coord(8/25)
    
  2. Notess, G.R.: Measuring the size of Internet databases (1997) 0.47
    0.47108063 = sum of:
      0.47108063 = product of:
        1.6824309 = sum of:
          0.10697319 = weight(abstract_txt:compares in 3462) [ClassicSimilarity], result of:
            0.10697319 = score(doc=3462,freq=2.0), product of:
              0.10361784 = queryWeight, product of:
                1.21651 = boost
                5.8400345 = idf(docFreq=341, maxDocs=43254)
                0.014584899 = queryNorm
              1.032382 = fieldWeight in 3462, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8400345 = idf(docFreq=341, maxDocs=43254)
                0.125 = fieldNorm(doc=3462)
          0.124071166 = weight(abstract_txt:largest in 3462) [ClassicSimilarity], result of:
            0.124071166 = score(doc=3462,freq=1.0), product of:
              0.14411476 = queryWeight, product of:
                1.4346721 = boost
                6.8873534 = idf(docFreq=119, maxDocs=43254)
                0.014584899 = queryNorm
              0.8609192 = fieldWeight in 3462, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8873534 = idf(docFreq=119, maxDocs=43254)
                0.125 = fieldNorm(doc=3462)
          0.30085796 = weight(abstract_txt:altavista in 3462) [ClassicSimilarity], result of:
            0.30085796 = score(doc=3462,freq=1.0), product of:
              0.32772702 = queryWeight, product of:
                3.0596344 = boost
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.014584899 = queryNorm
              0.91801393 = fieldWeight in 3462, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.125 = fieldNorm(doc=3462)
          0.34736505 = weight(abstract_txt:excite in 3462) [ClassicSimilarity], result of:
            0.34736505 = score(doc=3462,freq=1.0), product of:
              0.36068547 = queryWeight, product of:
                3.2097983 = boost
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.014584899 = queryNorm
              0.96306914 = fieldWeight in 3462, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.125 = fieldNorm(doc=3462)
          0.22547758 = weight(abstract_txt:engines in 3462) [ClassicSimilarity], result of:
            0.22547758 = score(doc=3462,freq=1.0), product of:
              0.34068274 = queryWeight, product of:
                4.411675 = boost
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.014584899 = queryNorm
              0.6618403 = fieldWeight in 3462, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.125 = fieldNorm(doc=3462)
          0.111068204 = weight(abstract_txt:search in 3462) [ClassicSimilarity], result of:
            0.111068204 = score(doc=3462,freq=1.0), product of:
              0.24324176 = queryWeight, product of:
                4.5655503 = boost
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.014584899 = queryNorm
              0.45661652 = fieldWeight in 3462, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.125 = fieldNorm(doc=3462)
          0.4666177 = weight(abstract_txt:lycos in 3462) [ClassicSimilarity], result of:
            0.4666177 = score(doc=3462,freq=1.0), product of:
              0.5026617 = queryWeight, product of:
                4.640844 = boost
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.014584899 = queryNorm
              0.9282937 = fieldWeight in 3462, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.125 = fieldNorm(doc=3462)
        0.28 = coord(7/25)
    
  3. Feldman, S.: "Just the answer, please" : choosing a Web search service (1997) 0.45
    0.44949585 = sum of:
      0.44949585 = product of:
        1.6053423 = sum of:
          0.039356913 = weight(abstract_txt:questions in 2771) [ClassicSimilarity], result of:
            0.039356913 = score(doc=2771,freq=1.0), product of:
              0.07327175 = queryWeight, product of:
                1.022979 = boost
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.014584899 = queryNorm
              0.53713626 = fieldWeight in 2771, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.109375 = fieldNorm(doc=2771)
          0.049997404 = weight(abstract_txt:real in 2771) [ClassicSimilarity], result of:
            0.049997404 = score(doc=2771,freq=1.0), product of:
              0.08594504 = queryWeight, product of:
                1.1079211 = boost
                5.3187375 = idf(docFreq=575, maxDocs=43254)
                0.014584899 = queryNorm
              0.5817369 = fieldWeight in 2771, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3187375 = idf(docFreq=575, maxDocs=43254)
                0.109375 = fieldNorm(doc=2771)
          0.2632507 = weight(abstract_txt:altavista in 2771) [ClassicSimilarity], result of:
            0.2632507 = score(doc=2771,freq=1.0), product of:
              0.32772702 = queryWeight, product of:
                3.0596344 = boost
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.014584899 = queryNorm
              0.8032622 = fieldWeight in 2771, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.109375 = fieldNorm(doc=2771)
          0.42984232 = weight(abstract_txt:excite in 2771) [ClassicSimilarity], result of:
            0.42984232 = score(doc=2771,freq=2.0), product of:
              0.36068547 = queryWeight, product of:
                3.2097983 = boost
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.014584899 = queryNorm
              1.1917373 = fieldWeight in 2771, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.109375 = fieldNorm(doc=2771)
          0.19729288 = weight(abstract_txt:engines in 2771) [ClassicSimilarity], result of:
            0.19729288 = score(doc=2771,freq=1.0), product of:
              0.34068274 = queryWeight, product of:
                4.411675 = boost
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.014584899 = queryNorm
              0.57911026 = fieldWeight in 2771, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.109375 = fieldNorm(doc=2771)
          0.21731153 = weight(abstract_txt:search in 2771) [ClassicSimilarity], result of:
            0.21731153 = score(doc=2771,freq=5.0), product of:
              0.24324176 = queryWeight, product of:
                4.5655503 = boost
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.014584899 = queryNorm
              0.89339733 = fieldWeight in 2771, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.109375 = fieldNorm(doc=2771)
          0.40829048 = weight(abstract_txt:lycos in 2771) [ClassicSimilarity], result of:
            0.40829048 = score(doc=2771,freq=1.0), product of:
              0.5026617 = queryWeight, product of:
                4.640844 = boost
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.014584899 = queryNorm
              0.812257 = fieldWeight in 2771, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.109375 = fieldNorm(doc=2771)
        0.28 = coord(7/25)
    
  4. Fryxell, D.A.: ¬9 Web search sites examined (1996) 0.44
    0.43541598 = sum of:
      0.43541598 = product of:
        2.17708 = sum of:
          0.45128694 = weight(abstract_txt:altavista in 6210) [ClassicSimilarity], result of:
            0.45128694 = score(doc=6210,freq=1.0), product of:
              0.32772702 = queryWeight, product of:
                3.0596344 = boost
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.014584899 = queryNorm
              1.3770208 = fieldWeight in 6210, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.1875 = fieldNorm(doc=6210)
          0.52104753 = weight(abstract_txt:excite in 6210) [ClassicSimilarity], result of:
            0.52104753 = score(doc=6210,freq=1.0), product of:
              0.36068547 = queryWeight, product of:
                3.2097983 = boost
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.014584899 = queryNorm
              1.4446037 = fieldWeight in 6210, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.1875 = fieldNorm(doc=6210)
          0.33821636 = weight(abstract_txt:engines in 6210) [ClassicSimilarity], result of:
            0.33821636 = score(doc=6210,freq=1.0), product of:
              0.34068274 = queryWeight, product of:
                4.411675 = boost
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.014584899 = queryNorm
              0.9927605 = fieldWeight in 6210, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.1875 = fieldNorm(doc=6210)
          0.16660231 = weight(abstract_txt:search in 6210) [ClassicSimilarity], result of:
            0.16660231 = score(doc=6210,freq=1.0), product of:
              0.24324176 = queryWeight, product of:
                4.5655503 = boost
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.014584899 = queryNorm
              0.6849248 = fieldWeight in 6210, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.1875 = fieldNorm(doc=6210)
          0.69992656 = weight(abstract_txt:lycos in 6210) [ClassicSimilarity], result of:
            0.69992656 = score(doc=6210,freq=1.0), product of:
              0.5026617 = queryWeight, product of:
                4.640844 = boost
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.014584899 = queryNorm
              1.3924406 = fieldWeight in 6210, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.1875 = fieldNorm(doc=6210)
        0.2 = coord(5/25)
    
  5. Courlois, M.P.: Cool tools for Web searching : an update (1996) 0.44
    0.43541598 = sum of:
      0.43541598 = product of:
        2.17708 = sum of:
          0.45128694 = weight(abstract_txt:altavista in 6212) [ClassicSimilarity], result of:
            0.45128694 = score(doc=6212,freq=1.0), product of:
              0.32772702 = queryWeight, product of:
                3.0596344 = boost
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.014584899 = queryNorm
              1.3770208 = fieldWeight in 6212, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3441114 = idf(docFreq=75, maxDocs=43254)
                0.1875 = fieldNorm(doc=6212)
          0.52104753 = weight(abstract_txt:excite in 6212) [ClassicSimilarity], result of:
            0.52104753 = score(doc=6212,freq=1.0), product of:
              0.36068547 = queryWeight, product of:
                3.2097983 = boost
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.014584899 = queryNorm
              1.4446037 = fieldWeight in 6212, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.704553 = idf(docFreq=52, maxDocs=43254)
                0.1875 = fieldNorm(doc=6212)
          0.33821636 = weight(abstract_txt:engines in 6212) [ClassicSimilarity], result of:
            0.33821636 = score(doc=6212,freq=1.0), product of:
              0.34068274 = queryWeight, product of:
                4.411675 = boost
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.014584899 = queryNorm
              0.9927605 = fieldWeight in 6212, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2947226 = idf(docFreq=589, maxDocs=43254)
                0.1875 = fieldNorm(doc=6212)
          0.16660231 = weight(abstract_txt:search in 6212) [ClassicSimilarity], result of:
            0.16660231 = score(doc=6212,freq=1.0), product of:
              0.24324176 = queryWeight, product of:
                4.5655503 = boost
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.014584899 = queryNorm
              0.6849248 = fieldWeight in 6212, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6529322 = idf(docFreq=3046, maxDocs=43254)
                0.1875 = fieldNorm(doc=6212)
          0.69992656 = weight(abstract_txt:lycos in 6212) [ClassicSimilarity], result of:
            0.69992656 = score(doc=6212,freq=1.0), product of:
              0.5026617 = queryWeight, product of:
                4.640844 = boost
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.014584899 = queryNorm
              1.3924406 = fieldWeight in 6212, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4263496 = idf(docFreq=69, maxDocs=43254)
                0.1875 = fieldNorm(doc=6212)
        0.2 = coord(5/25)