Document (#12298)

Author

Liu, J.

Title

Understanding WWW search tools

Issue

Update February 1996.

Source

http://www.indiana.edu/~librcsd/search/

Year

1996

Abstract

Vorstellung von Hilfsmitteln zur inhaltlichen Suche von Angeboten im Internet

Footnote

First draft: September 1995

Theme

Suchmaschinen

Object

WWW Worm
WebCrawler
Lycos
OpenText
Excite
Inktomi
Altavista
SavvySearch
InfoMarket
MetaCrawler

Similar documents (content)

1. UCB library Internet search tool details (1995) 3.18

   3.1777039 = sum of:
     3.1777039 = product of:
       4.766556 = sum of:
         0.13511273 = weight(abstract_txt:internet in 2879) [ClassicSimilarity], result of:
           0.13511273 = score(doc=2879,freq=1.0), product of:
             0.115956165 = queryWeight, product of:
               1.0202645 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.03048096 = queryNorm
             1.1652052 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.3125 = fieldNorm(doc=2879)
         0.46021864 = weight(abstract_txt:suche in 2879) [ClassicSimilarity], result of:
           0.46021864 = score(doc=2879,freq=1.0), product of:
             0.26250595 = queryWeight, product of:
               1.5350957 = boost
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.03048096 = queryNorm
             1.7531742 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.3125 = fieldNorm(doc=2879)
         0.7318129 = weight(abstract_txt:angeboten in 2879) [ClassicSimilarity], result of:
           0.7318129 = score(doc=2879,freq=1.0), product of:
             0.3576265 = queryWeight, product of:
               1.7917637 = boost
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.03048096 = queryNorm
             2.046305 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.3125 = fieldNorm(doc=2879)
         0.7950683 = weight(abstract_txt:inhaltlichen in 2879) [ClassicSimilarity], result of:
           0.7950683 = score(doc=2879,freq=1.0), product of:
             0.3779485 = queryWeight, product of:
               1.8419684 = boost
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.03048096 = queryNorm
             2.103642 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.3125 = fieldNorm(doc=2879)
         0.8614351 = weight(abstract_txt:vorstellung in 2879) [ClassicSimilarity], result of:
           0.8614351 = score(doc=2879,freq=1.0), product of:
             0.3986986 = queryWeight, product of:
               1.8918567 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.03048096 = queryNorm
             2.1606174 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.3125 = fieldNorm(doc=2879)
         1.782908 = weight(abstract_txt:hilfsmitteln in 2879) [ClassicSimilarity], result of:
           1.782908 = score(doc=2879,freq=1.0), product of:
             0.6475137 = queryWeight, product of:
               2.4109619 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.03048096 = queryNorm
             2.7534676 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.3125 = fieldNorm(doc=2879)
       0.6666667 = coord(6/9)
   

2. December, J.: New spiders roam the Web (1994) 3.18

   3.1777039 = sum of:
     3.1777039 = product of:
       4.766556 = sum of:
         0.13511273 = weight(abstract_txt:internet in 3234) [ClassicSimilarity], result of:
           0.13511273 = score(doc=3234,freq=1.0), product of:
             0.115956165 = queryWeight, product of:
               1.0202645 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.03048096 = queryNorm
             1.1652052 = fieldWeight in 3234, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.3125 = fieldNorm(doc=3234)
         0.46021864 = weight(abstract_txt:suche in 3234) [ClassicSimilarity], result of:
           0.46021864 = score(doc=3234,freq=1.0), product of:
             0.26250595 = queryWeight, product of:
               1.5350957 = boost
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.03048096 = queryNorm
             1.7531742 = fieldWeight in 3234, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.3125 = fieldNorm(doc=3234)
         0.7318129 = weight(abstract_txt:angeboten in 3234) [ClassicSimilarity], result of:
           0.7318129 = score(doc=3234,freq=1.0), product of:
             0.3576265 = queryWeight, product of:
               1.7917637 = boost
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.03048096 = queryNorm
             2.046305 = fieldWeight in 3234, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.3125 = fieldNorm(doc=3234)
         0.7950683 = weight(abstract_txt:inhaltlichen in 3234) [ClassicSimilarity], result of:
           0.7950683 = score(doc=3234,freq=1.0), product of:
             0.3779485 = queryWeight, product of:
               1.8419684 = boost
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.03048096 = queryNorm
             2.103642 = fieldWeight in 3234, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.3125 = fieldNorm(doc=3234)
         0.8614351 = weight(abstract_txt:vorstellung in 3234) [ClassicSimilarity], result of:
           0.8614351 = score(doc=3234,freq=1.0), product of:
             0.3986986 = queryWeight, product of:
               1.8918567 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.03048096 = queryNorm
             2.1606174 = fieldWeight in 3234, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.3125 = fieldNorm(doc=3234)
         1.782908 = weight(abstract_txt:hilfsmitteln in 3234) [ClassicSimilarity], result of:
           1.782908 = score(doc=3234,freq=1.0), product of:
             0.6475137 = queryWeight, product of:
               2.4109619 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.03048096 = queryNorm
             2.7534676 = fieldWeight in 3234, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.3125 = fieldNorm(doc=3234)
       0.6666667 = coord(6/9)
   

3. Fayfich, P.R.: Searching for information on the WWW (???) 3.18

   3.1777039 = sum of:
     3.1777039 = product of:
       4.766556 = sum of:
         0.13511273 = weight(abstract_txt:internet in 3235) [ClassicSimilarity], result of:
           0.13511273 = score(doc=3235,freq=1.0), product of:
             0.115956165 = queryWeight, product of:
               1.0202645 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.03048096 = queryNorm
             1.1652052 = fieldWeight in 3235, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.3125 = fieldNorm(doc=3235)
         0.46021864 = weight(abstract_txt:suche in 3235) [ClassicSimilarity], result of:
           0.46021864 = score(doc=3235,freq=1.0), product of:
             0.26250595 = queryWeight, product of:
               1.5350957 = boost
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.03048096 = queryNorm
             1.7531742 = fieldWeight in 3235, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.3125 = fieldNorm(doc=3235)
         0.7318129 = weight(abstract_txt:angeboten in 3235) [ClassicSimilarity], result of:
           0.7318129 = score(doc=3235,freq=1.0), product of:
             0.3576265 = queryWeight, product of:
               1.7917637 = boost
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.03048096 = queryNorm
             2.046305 = fieldWeight in 3235, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.3125 = fieldNorm(doc=3235)
         0.7950683 = weight(abstract_txt:inhaltlichen in 3235) [ClassicSimilarity], result of:
           0.7950683 = score(doc=3235,freq=1.0), product of:
             0.3779485 = queryWeight, product of:
               1.8419684 = boost
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.03048096 = queryNorm
             2.103642 = fieldWeight in 3235, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.3125 = fieldNorm(doc=3235)
         0.8614351 = weight(abstract_txt:vorstellung in 3235) [ClassicSimilarity], result of:
           0.8614351 = score(doc=3235,freq=1.0), product of:
             0.3986986 = queryWeight, product of:
               1.8918567 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.03048096 = queryNorm
             2.1606174 = fieldWeight in 3235, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.3125 = fieldNorm(doc=3235)
         1.782908 = weight(abstract_txt:hilfsmitteln in 3235) [ClassicSimilarity], result of:
           1.782908 = score(doc=3235,freq=1.0), product of:
             0.6475137 = queryWeight, product of:
               2.4109619 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.03048096 = queryNorm
             2.7534676 = fieldWeight in 3235, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.3125 = fieldNorm(doc=3235)
       0.6666667 = coord(6/9)
   

4. Leighton, H.V.: Performance of four World Wide Web (WWW) index services : Infoseek, Lycos, WebCrawler and WWWWorm (1995) 3.18

   3.1777039 = sum of:
     3.1777039 = product of:
       4.766556 = sum of:
         0.13511273 = weight(abstract_txt:internet in 3236) [ClassicSimilarity], result of:
           0.13511273 = score(doc=3236,freq=1.0), product of:
             0.115956165 = queryWeight, product of:
               1.0202645 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.03048096 = queryNorm
             1.1652052 = fieldWeight in 3236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.3125 = fieldNorm(doc=3236)
         0.46021864 = weight(abstract_txt:suche in 3236) [ClassicSimilarity], result of:
           0.46021864 = score(doc=3236,freq=1.0), product of:
             0.26250595 = queryWeight, product of:
               1.5350957 = boost
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.03048096 = queryNorm
             1.7531742 = fieldWeight in 3236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.3125 = fieldNorm(doc=3236)
         0.7318129 = weight(abstract_txt:angeboten in 3236) [ClassicSimilarity], result of:
           0.7318129 = score(doc=3236,freq=1.0), product of:
             0.3576265 = queryWeight, product of:
               1.7917637 = boost
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.03048096 = queryNorm
             2.046305 = fieldWeight in 3236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.3125 = fieldNorm(doc=3236)
         0.7950683 = weight(abstract_txt:inhaltlichen in 3236) [ClassicSimilarity], result of:
           0.7950683 = score(doc=3236,freq=1.0), product of:
             0.3779485 = queryWeight, product of:
               1.8419684 = boost
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.03048096 = queryNorm
             2.103642 = fieldWeight in 3236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.3125 = fieldNorm(doc=3236)
         0.8614351 = weight(abstract_txt:vorstellung in 3236) [ClassicSimilarity], result of:
           0.8614351 = score(doc=3236,freq=1.0), product of:
             0.3986986 = queryWeight, product of:
               1.8918567 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.03048096 = queryNorm
             2.1606174 = fieldWeight in 3236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.3125 = fieldNorm(doc=3236)
         1.782908 = weight(abstract_txt:hilfsmitteln in 3236) [ClassicSimilarity], result of:
           1.782908 = score(doc=3236,freq=1.0), product of:
             0.6475137 = queryWeight, product of:
               2.4109619 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.03048096 = queryNorm
             2.7534676 = fieldWeight in 3236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.3125 = fieldNorm(doc=3236)
       0.6666667 = coord(6/9)
   

5. Koch, T.: Searching the Web : systematic overview over indexes (1995) 3.18

   3.1777039 = sum of:
     3.1777039 = product of:
       4.766556 = sum of:
         0.13511273 = weight(abstract_txt:internet in 3237) [ClassicSimilarity], result of:
           0.13511273 = score(doc=3237,freq=1.0), product of:
             0.115956165 = queryWeight, product of:
               1.0202645 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.03048096 = queryNorm
             1.1652052 = fieldWeight in 3237, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.3125 = fieldNorm(doc=3237)
         0.46021864 = weight(abstract_txt:suche in 3237) [ClassicSimilarity], result of:
           0.46021864 = score(doc=3237,freq=1.0), product of:
             0.26250595 = queryWeight, product of:
               1.5350957 = boost
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.03048096 = queryNorm
             1.7531742 = fieldWeight in 3237, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.3125 = fieldNorm(doc=3237)
         0.7318129 = weight(abstract_txt:angeboten in 3237) [ClassicSimilarity], result of:
           0.7318129 = score(doc=3237,freq=1.0), product of:
             0.3576265 = queryWeight, product of:
               1.7917637 = boost
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.03048096 = queryNorm
             2.046305 = fieldWeight in 3237, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.3125 = fieldNorm(doc=3237)
         0.7950683 = weight(abstract_txt:inhaltlichen in 3237) [ClassicSimilarity], result of:
           0.7950683 = score(doc=3237,freq=1.0), product of:
             0.3779485 = queryWeight, product of:
               1.8419684 = boost
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.03048096 = queryNorm
             2.103642 = fieldWeight in 3237, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.731654 = idf(docFreq=143, maxDocs=44421)
               0.3125 = fieldNorm(doc=3237)
         0.8614351 = weight(abstract_txt:vorstellung in 3237) [ClassicSimilarity], result of:
           0.8614351 = score(doc=3237,freq=1.0), product of:
             0.3986986 = queryWeight, product of:
               1.8918567 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.03048096 = queryNorm
             2.1606174 = fieldWeight in 3237, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.3125 = fieldNorm(doc=3237)
         1.782908 = weight(abstract_txt:hilfsmitteln in 3237) [ClassicSimilarity], result of:
           1.782908 = score(doc=3237,freq=1.0), product of:
             0.6475137 = queryWeight, product of:
               2.4109619 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.03048096 = queryNorm
             2.7534676 = fieldWeight in 3237, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.3125 = fieldNorm(doc=3237)
       0.6666667 = coord(6/9)