Document (#23237)

Author

Bohlen, J.T.

Title

ChemGuide und PublishersGuide : Neue spezialisierte Internet-Suchmaschinen des FIZ Chemie Berlin

Source

nfd Information - Wissenschaft und Praxis. 51(2000) H.6, S.351-354

Year

2000

Abstract

Suchmaschinen und Web-Verzeichnisse sind gängige Einstiege für Suchen im Internet. Durch die unterschiedlichen Auswahlkriterien, Suchmöglichkeiten und Schwerpunkte der verschiedenen Anbieter unterscheiden sich jedoch die Suchergebnisse erheblich in Umfang und Inhalt. ChemGuide und PublishersGuide sind Suchmaschinen, die thematisch vorausgewählte Internet-Server im Volltext durchsuchen. Eine einfach zu bedienende Benutzeroberfläche in Verbindung mit vielseitigen Suchfunktionen verbessern die Qualität der Suchergebnisse erheblich. Gefundene Seiten können innerhalb der Suchmaschine betrachtet werden, die gefundenen Suchbegriffe werden im Dokument markiert

Theme

Internet
Informationsmittel

Field

Chemie

Object

ChemGuide

Similar documents (content)

1. Schamberger, J.: Webkataloge : eine alte, neue Alternative für Wirtschaft und Wissenschaft zur Informationsbeschaffung im WWW (2005) 0.25

   0.24883737 = sum of:
     0.24883737 = product of:
       0.8887049 = sum of:
         0.08047393 = weight(abstract_txt:unterscheiden in 4982) [ClassicSimilarity], result of:
           0.08047393 = score(doc=4982,freq=1.0), product of:
             0.14190555 = queryWeight, product of:
               1.0341172 = boost
               7.2588162 = idf(docFreq=84, maxDocs=44421)
               0.018904438 = queryNorm
             0.56709504 = fieldWeight in 4982, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.2588162 = idf(docFreq=84, maxDocs=44421)
               0.078125 = fieldNorm(doc=4982)
         0.12179941 = weight(abstract_txt:verzeichnisse in 4982) [ClassicSimilarity], result of:
           0.12179941 = score(doc=4982,freq=1.0), product of:
             0.18706506 = queryWeight, product of:
               1.1873163 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.018904438 = queryNorm
             0.6511072 = fieldWeight in 4982, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.078125 = fieldNorm(doc=4982)
         0.15659896 = weight(abstract_txt:spezialisierte in 4982) [ClassicSimilarity], result of:
           0.15659896 = score(doc=4982,freq=1.0), product of:
             0.22118473 = queryWeight, product of:
               1.2910637 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.018904438 = queryNorm
             0.7080008 = fieldWeight in 4982, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.078125 = fieldNorm(doc=4982)
         0.032721728 = weight(abstract_txt:internet in 4982) [ClassicSimilarity], result of:
           0.032721728 = score(doc=4982,freq=1.0), product of:
             0.1123295 = queryWeight, product of:
               1.5935937 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.018904438 = queryNorm
             0.2913013 = fieldWeight in 4982, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.078125 = fieldNorm(doc=4982)
         0.18057112 = weight(abstract_txt:suchergebnisse in 4982) [ClassicSimilarity], result of:
           0.18057112 = score(doc=4982,freq=1.0), product of:
             0.3064348 = queryWeight, product of:
               2.1490877 = boost
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.018904438 = queryNorm
             0.5892644 = fieldWeight in 4982, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.078125 = fieldNorm(doc=4982)
         0.18773384 = weight(abstract_txt:erheblich in 4982) [ClassicSimilarity], result of:
           0.18773384 = score(doc=4982,freq=1.0), product of:
             0.31448573 = queryWeight, product of:
               2.177136 = boost
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.018904438 = queryNorm
             0.59695506 = fieldWeight in 4982, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.078125 = fieldNorm(doc=4982)
         0.1288059 = weight(abstract_txt:suchmaschinen in 4982) [ClassicSimilarity], result of:
           0.1288059 = score(doc=4982,freq=1.0), product of:
             0.28004438 = queryWeight, product of:
               2.516194 = boost
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.018904438 = queryNorm
             0.4599482 = fieldWeight in 4982, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.078125 = fieldNorm(doc=4982)
       0.28 = coord(7/25)
   

2. Bekavac, B.: Metainformationsdienste des Internet (2004) 0.16

   0.15661974 = sum of:
     0.15661974 = product of:
       0.4894367 = sum of:
         0.04306082 = weight(abstract_txt:dokument in 3936) [ClassicSimilarity], result of:
           0.04306082 = score(doc=3936,freq=1.0), product of:
             0.14846955 = queryWeight, product of:
               1.057764 = boost
               7.4248013 = idf(docFreq=71, maxDocs=44421)
               0.018904438 = queryNorm
             0.2900313 = fieldWeight in 3936, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4248013 = idf(docFreq=71, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
         0.02831103 = weight(abstract_txt:sind in 3936) [ClassicSimilarity], result of:
           0.02831103 = score(doc=3936,freq=5.0), product of:
             0.08271285 = queryWeight, product of:
               1.116533 = boost
               3.9186604 = idf(docFreq=2398, maxDocs=44421)
               0.018904438 = queryNorm
             0.3422809 = fieldWeight in 3936, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.9186604 = idf(docFreq=2398, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
         0.05516457 = weight(abstract_txt:gefundenen in 3936) [ClassicSimilarity], result of:
           0.05516457 = score(doc=3936,freq=1.0), product of:
             0.17512819 = queryWeight, product of:
               1.1488098 = boost
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.018904438 = queryNorm
             0.31499538 = fieldWeight in 3936, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
         0.058110837 = weight(abstract_txt:suchmöglichkeiten in 3936) [ClassicSimilarity], result of:
           0.058110837 = score(doc=3936,freq=1.0), product of:
             0.18130954 = queryWeight, product of:
               1.1689082 = boost
               8.20496 = idf(docFreq=32, maxDocs=44421)
               0.018904438 = queryNorm
             0.32050624 = fieldWeight in 3936, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.20496 = idf(docFreq=32, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
         0.060899705 = weight(abstract_txt:verzeichnisse in 3936) [ClassicSimilarity], result of:
           0.060899705 = score(doc=3936,freq=1.0), product of:
             0.18706506 = queryWeight, product of:
               1.1873163 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.018904438 = queryNorm
             0.3255536 = fieldWeight in 3936, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
         0.06715859 = weight(abstract_txt:suchbegriffe in 3936) [ClassicSimilarity], result of:
           0.06715859 = score(doc=3936,freq=1.0), product of:
             0.1996719 = queryWeight, product of:
               1.2266723 = boost
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.018904438 = queryNorm
             0.33634472 = fieldWeight in 3936, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
         0.032721728 = weight(abstract_txt:internet in 3936) [ClassicSimilarity], result of:
           0.032721728 = score(doc=3936,freq=4.0), product of:
             0.1123295 = queryWeight, product of:
               1.5935937 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.018904438 = queryNorm
             0.2913013 = fieldWeight in 3936, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
         0.1440094 = weight(abstract_txt:suchmaschinen in 3936) [ClassicSimilarity], result of:
           0.1440094 = score(doc=3936,freq=5.0), product of:
             0.28004438 = queryWeight, product of:
               2.516194 = boost
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.018904438 = queryNorm
             0.51423776 = fieldWeight in 3936, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3936)
       0.32 = coord(8/25)
   

3. Kwiatkowski, M.; Höhfeld, S.: Thematisches Aufspüren von Web-Dokumenten : eine kritische Betrachtung von Focused Crawling-Strategien (2007) 0.15

   0.14548716 = sum of:
     0.14548716 = product of:
       0.6061965 = sum of:
         0.06889731 = weight(abstract_txt:dokument in 1153) [ClassicSimilarity], result of:
           0.06889731 = score(doc=1153,freq=1.0), product of:
             0.14846955 = queryWeight, product of:
               1.057764 = boost
               7.4248013 = idf(docFreq=71, maxDocs=44421)
               0.018904438 = queryNorm
             0.46405008 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4248013 = idf(docFreq=71, maxDocs=44421)
               0.0625 = fieldNorm(doc=1153)
         0.076670274 = weight(abstract_txt:thematisch in 1153) [ClassicSimilarity], result of:
           0.076670274 = score(doc=1153,freq=1.0), product of:
             0.15943632 = queryWeight, product of:
               1.0961342 = boost
               7.694134 = idf(docFreq=54, maxDocs=44421)
               0.018904438 = queryNorm
             0.4808834 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.694134 = idf(docFreq=54, maxDocs=44421)
               0.0625 = fieldNorm(doc=1153)
         0.020257723 = weight(abstract_txt:sind in 1153) [ClassicSimilarity], result of:
           0.020257723 = score(doc=1153,freq=1.0), product of:
             0.08271285 = queryWeight, product of:
               1.116533 = boost
               3.9186604 = idf(docFreq=2398, maxDocs=44421)
               0.018904438 = queryNorm
             0.24491628 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9186604 = idf(docFreq=2398, maxDocs=44421)
               0.0625 = fieldNorm(doc=1153)
         0.14445691 = weight(abstract_txt:suchergebnisse in 1153) [ClassicSimilarity], result of:
           0.14445691 = score(doc=1153,freq=1.0), product of:
             0.3064348 = queryWeight, product of:
               2.1490877 = boost
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.018904438 = queryNorm
             0.47141153 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.0625 = fieldNorm(doc=1153)
         0.15018708 = weight(abstract_txt:erheblich in 1153) [ClassicSimilarity], result of:
           0.15018708 = score(doc=1153,freq=1.0), product of:
             0.31448573 = queryWeight, product of:
               2.177136 = boost
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.018904438 = queryNorm
             0.47756404 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.0625 = fieldNorm(doc=1153)
         0.14572725 = weight(abstract_txt:suchmaschinen in 1153) [ClassicSimilarity], result of:
           0.14572725 = score(doc=1153,freq=2.0), product of:
             0.28004438 = queryWeight, product of:
               2.516194 = boost
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.018904438 = queryNorm
             0.520372 = fieldWeight in 1153, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.0625 = fieldNorm(doc=1153)
       0.24 = coord(6/25)
   

4. Lepsky, K.: Im Heuhaufen suchen - und finden : Automatische Erschließung von Internetquellen: Möglichkeiten und Grenzen (1998) 0.13

   0.12694864 = sum of:
     0.12694864 = product of:
       0.6347432 = sum of:
         0.11032914 = weight(abstract_txt:gefundenen in 5655) [ClassicSimilarity], result of:
           0.11032914 = score(doc=5655,freq=1.0), product of:
             0.17512819 = queryWeight, product of:
               1.1488098 = boost
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.018904438 = queryNorm
             0.62999076 = fieldWeight in 5655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.078125 = fieldNorm(doc=5655)
         0.12179941 = weight(abstract_txt:verzeichnisse in 5655) [ClassicSimilarity], result of:
           0.12179941 = score(doc=5655,freq=1.0), product of:
             0.18706506 = queryWeight, product of:
               1.1873163 = boost
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.018904438 = queryNorm
             0.6511072 = fieldWeight in 5655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.334172 = idf(docFreq=28, maxDocs=44421)
               0.078125 = fieldNorm(doc=5655)
         0.032721728 = weight(abstract_txt:internet in 5655) [ClassicSimilarity], result of:
           0.032721728 = score(doc=5655,freq=1.0), product of:
             0.1123295 = queryWeight, product of:
               1.5935937 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.018904438 = queryNorm
             0.2913013 = fieldWeight in 5655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.078125 = fieldNorm(doc=5655)
         0.18773384 = weight(abstract_txt:erheblich in 5655) [ClassicSimilarity], result of:
           0.18773384 = score(doc=5655,freq=1.0), product of:
             0.31448573 = queryWeight, product of:
               2.177136 = boost
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.018904438 = queryNorm
             0.59695506 = fieldWeight in 5655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.078125 = fieldNorm(doc=5655)
         0.18215905 = weight(abstract_txt:suchmaschinen in 5655) [ClassicSimilarity], result of:
           0.18215905 = score(doc=5655,freq=2.0), product of:
             0.28004438 = queryWeight, product of:
               2.516194 = boost
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.018904438 = queryNorm
             0.65046495 = fieldWeight in 5655, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.078125 = fieldNorm(doc=5655)
       0.2 = coord(5/25)
   

5. Hülsmann, M.: Erfolgreich suchen im Internet : Suchmaschinen-Special (2001) 0.12

   0.12281682 = sum of:
     0.12281682 = product of:
       0.6140841 = sum of:
         0.09656872 = weight(abstract_txt:unterscheiden in 6592) [ClassicSimilarity], result of:
           0.09656872 = score(doc=6592,freq=1.0), product of:
             0.14190555 = queryWeight, product of:
               1.0341172 = boost
               7.2588162 = idf(docFreq=84, maxDocs=44421)
               0.018904438 = queryNorm
             0.68051404 = fieldWeight in 6592, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.2588162 = idf(docFreq=84, maxDocs=44421)
               0.09375 = fieldNorm(doc=6592)
         0.04297312 = weight(abstract_txt:sind in 6592) [ClassicSimilarity], result of:
           0.04297312 = score(doc=6592,freq=2.0), product of:
             0.08271285 = queryWeight, product of:
               1.116533 = boost
               3.9186604 = idf(docFreq=2398, maxDocs=44421)
               0.018904438 = queryNorm
             0.51954585 = fieldWeight in 6592, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.9186604 = idf(docFreq=2398, maxDocs=44421)
               0.09375 = fieldNorm(doc=6592)
         0.039266076 = weight(abstract_txt:internet in 6592) [ClassicSimilarity], result of:
           0.039266076 = score(doc=6592,freq=1.0), product of:
             0.1123295 = queryWeight, product of:
               1.5935937 = boost
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.018904438 = queryNorm
             0.34956157 = fieldWeight in 6592, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7286568 = idf(docFreq=2900, maxDocs=44421)
               0.09375 = fieldNorm(doc=6592)
         0.21668535 = weight(abstract_txt:suchergebnisse in 6592) [ClassicSimilarity], result of:
           0.21668535 = score(doc=6592,freq=1.0), product of:
             0.3064348 = queryWeight, product of:
               2.1490877 = boost
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.018904438 = queryNorm
             0.7071173 = fieldWeight in 6592, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.09375 = fieldNorm(doc=6592)
         0.21859087 = weight(abstract_txt:suchmaschinen in 6592) [ClassicSimilarity], result of:
           0.21859087 = score(doc=6592,freq=2.0), product of:
             0.28004438 = queryWeight, product of:
               2.516194 = boost
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.018904438 = queryNorm
             0.780558 = fieldWeight in 6592, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.887337 = idf(docFreq=334, maxDocs=44421)
               0.09375 = fieldNorm(doc=6592)
       0.2 = coord(5/25)