Document (#23773)

Author
Stock, M.
Stock, W.G.
Title
Internet-Suchwerkzeuge im Vergleich : Teil 1: Retrievaltests mit Known Item searches
Source
Password. 2000, H.11, S.23-31
Year
2000
Abstract
Web Search Engines und Web Directories sind die technologische Speerspitze im High-Tech-Bereich Internet. Als Suchassistenten gestatten sie Laien und Profi-Searchern gleichsam einen optimalen Einstieg in die Vielfalt der Informationsquellen des World Wide Web, Sie ermöglichen durch eine Kombination aus hierarchisch geordnetem kontrollierten Vokabular, automatischer Indexierung sowie diverser Synonym-, Homonym- und Fachwörterbücher einen zielgenauen Zugriff auf WebSites. - Stop! Glauben Sie das? Wir waren skeptisch und haben Suchmaschinen und Suchverzeichnisse genau angeschaut. Durchgeführt wurde ein Retrievaltest, der unterschiedliche Suchsysteme mit jeweils dergleichen Anfrage konfrontierte, auf die wir bereits die Antwort wussten ("Known Item Search"). Skizziert werden zudem bisher ausgearbeitete empirische Erhebungen zur Evaluation von Web-Retrievalsystemen, angefangen von seriösen informationswissenschaftlichen Forschungen bis hinzu den Tests in Publikumszeitschriften
Theme
Suchmaschinen
Object
AltaVista
NorthernLight
FAST
Acoon
Excite
Fireball
HotBot
Infoseek
Lycos
Oingo
Simpli
Speedfind
Spider
Web-Crawler
Yahoo

Similar documents (author)

  1. Stock, M.; Stock, W.G.: Klassifikation und terminologische Kontrolle : Yahoo!, Open Directory und Oingo im Vergleich (2000) 4.93
    4.92818 = sum of:
      4.92818 = weight(author_txt:stock in 5496) [ClassicSimilarity], result of:
        4.92818 = fieldWeight in 5496, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.9694996 = idf(docFreq=112, maxDocs=44218)
          0.5 = fieldNorm(doc=5496)
    
  2. Stock, M.; Stock, W.G.: Internet-Suchwerkzeuge im Vergleich (III) : Informationslinguistik und -statistik: AltaVista, FAST und Northern Light (2001) 4.93
    4.92818 = sum of:
      4.92818 = weight(author_txt:stock in 5578) [ClassicSimilarity], result of:
        4.92818 = fieldWeight in 5578, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.9694996 = idf(docFreq=112, maxDocs=44218)
          0.5 = fieldNorm(doc=5578)
    
  3. Stock, M.; Stock, W.G.: Internet-Suchwerkzeuge im Vergleich (IV) : Relevance Ranking nach "Popularität" von Webseiten: Google (2001) 4.93
    4.92818 = sum of:
      4.92818 = weight(author_txt:stock in 5771) [ClassicSimilarity], result of:
        4.92818 = fieldWeight in 5771, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.9694996 = idf(docFreq=112, maxDocs=44218)
          0.5 = fieldNorm(doc=5771)
    
  4. Stock, M.; Stock, W.G.: Medizininformationen : Literaturnachweise, Volltexte und klinische Entscheidungen aus einer Hand (2004) 4.93
    4.92818 = sum of:
      4.92818 = weight(author_txt:stock in 3288) [ClassicSimilarity], result of:
        4.92818 = fieldWeight in 3288, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.9694996 = idf(docFreq=112, maxDocs=44218)
          0.5 = fieldNorm(doc=3288)
    
  5. Stock, M.; Stock, W.G.: Online-Hosts für Wissenschaft, Technik und Medizin auf dem deutschen Informationsmarkt : Eine komparative Analyse (2005) 4.93
    4.92818 = sum of:
      4.92818 = weight(author_txt:stock in 3335) [ClassicSimilarity], result of:
        4.92818 = fieldWeight in 3335, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.9694996 = idf(docFreq=112, maxDocs=44218)
          0.5 = fieldNorm(doc=3335)
    

Similar documents (content)

  1. Stock, M.; Stock, W.G.: Klassifikation und terminologische Kontrolle : Yahoo!, Open Directory und Oingo im Vergleich (2000) 0.12
    0.11919018 = sum of:
      0.11919018 = product of:
        0.7449386 = sum of:
          0.044382054 = weight(abstract_txt:einen in 5496) [ClassicSimilarity], result of:
            0.044382054 = score(doc=5496,freq=1.0), product of:
              0.09512847 = queryWeight, product of:
                1.071861 = boost
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.02080622 = queryNorm
              0.46654862 = fieldWeight in 5496, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.109375 = fieldNorm(doc=5496)
          0.21773574 = weight(abstract_txt:retrievaltest in 5496) [ClassicSimilarity], result of:
            0.21773574 = score(doc=5496,freq=1.0), product of:
              0.21799609 = queryWeight, product of:
                1.1473411 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.02080622 = queryNorm
              0.9988057 = fieldWeight in 5496, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.109375 = fieldNorm(doc=5496)
          0.21773574 = weight(abstract_txt:suchwerkzeuge in 5496) [ClassicSimilarity], result of:
            0.21773574 = score(doc=5496,freq=1.0), product of:
              0.21799609 = queryWeight, product of:
                1.1473411 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.02080622 = queryNorm
              0.9988057 = fieldWeight in 5496, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.109375 = fieldNorm(doc=5496)
          0.2650851 = weight(abstract_txt:homonym in 5496) [ClassicSimilarity], result of:
            0.2650851 = score(doc=5496,freq=1.0), product of:
              0.24855304 = queryWeight, product of:
                1.2251176 = boost
                9.7509775 = idf(docFreq=6, maxDocs=44218)
                0.02080622 = queryNorm
              1.0665132 = fieldWeight in 5496, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.7509775 = idf(docFreq=6, maxDocs=44218)
                0.109375 = fieldNorm(doc=5496)
        0.16 = coord(4/25)
    
  2. Stock, M.; Stock, W.G.: Internet-Suchwerkzeuge im Vergleich (III) : Informationslinguistik und -statistik: AltaVista, FAST und Northern Light (2001) 0.11
    0.106577024 = sum of:
      0.106577024 = product of:
        0.6661064 = sum of:
          0.21773574 = weight(abstract_txt:retrievaltest in 5578) [ClassicSimilarity], result of:
            0.21773574 = score(doc=5578,freq=1.0), product of:
              0.21799609 = queryWeight, product of:
                1.1473411 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.02080622 = queryNorm
              0.9988057 = fieldWeight in 5578, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.109375 = fieldNorm(doc=5578)
          0.21773574 = weight(abstract_txt:suchwerkzeuge in 5578) [ClassicSimilarity], result of:
            0.21773574 = score(doc=5578,freq=1.0), product of:
              0.21799609 = queryWeight, product of:
                1.1473411 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.02080622 = queryNorm
              0.9988057 = fieldWeight in 5578, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.109375 = fieldNorm(doc=5578)
          0.080832265 = weight(abstract_txt:known in 5578) [ClassicSimilarity], result of:
            0.080832265 = score(doc=5578,freq=1.0), product of:
              0.14187157 = queryWeight, product of:
                1.3089737 = boost
                5.2092032 = idf(docFreq=656, maxDocs=44218)
                0.02080622 = queryNorm
              0.5697566 = fieldWeight in 5578, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2092032 = idf(docFreq=656, maxDocs=44218)
                0.109375 = fieldNorm(doc=5578)
          0.1498027 = weight(abstract_txt:item in 5578) [ClassicSimilarity], result of:
            0.1498027 = score(doc=5578,freq=1.0), product of:
              0.2140517 = queryWeight, product of:
                1.607839 = boost
                6.39857 = idf(docFreq=199, maxDocs=44218)
                0.02080622 = queryNorm
              0.6998436 = fieldWeight in 5578, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.39857 = idf(docFreq=199, maxDocs=44218)
                0.109375 = fieldNorm(doc=5578)
        0.16 = coord(4/25)
    
  3. Eibl, M.: Visualisierung der Recherche in Dokument-Retrievalsystemen : Methoden und Lösungen (1999) 0.05
    0.049173 = sum of:
      0.049173 = product of:
        0.40977502 = sum of:
          0.18510263 = weight(abstract_txt:anfrage in 3432) [ClassicSimilarity], result of:
            0.18510263 = score(doc=3432,freq=2.0), product of:
              0.17207792 = queryWeight, product of:
                1.0193676 = boost
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.02080622 = queryNorm
              1.0756907 = fieldWeight in 3432, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.09375 = fieldNorm(doc=3432)
          0.038041763 = weight(abstract_txt:einen in 3432) [ClassicSimilarity], result of:
            0.038041763 = score(doc=3432,freq=1.0), product of:
              0.09512847 = queryWeight, product of:
                1.071861 = boost
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.02080622 = queryNorm
              0.39989883 = fieldWeight in 3432, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.09375 = fieldNorm(doc=3432)
          0.18663064 = weight(abstract_txt:retrievalsystemen in 3432) [ClassicSimilarity], result of:
            0.18663064 = score(doc=3432,freq=1.0), product of:
              0.21799609 = queryWeight, product of:
                1.1473411 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.02080622 = queryNorm
              0.85611916 = fieldWeight in 3432, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.09375 = fieldNorm(doc=3432)
        0.12 = coord(3/25)
    
  4. Stock, W.G.: Qualitätskriterien von Suchmaschinen : Checkliste für Retrievalsysteme (2000) 0.04
    0.044556215 = sum of:
      0.044556215 = product of:
        0.27847636 = sum of:
          0.07411343 = weight(abstract_txt:synonym in 5773) [ClassicSimilarity], result of:
            0.07411343 = score(doc=5773,freq=1.0), product of:
              0.16869938 = queryWeight, product of:
                1.009311 = boost
                8.033325 = idf(docFreq=38, maxDocs=44218)
                0.02080622 = queryNorm
              0.43932247 = fieldWeight in 5773, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.033325 = idf(docFreq=38, maxDocs=44218)
                0.0546875 = fieldNorm(doc=5773)
          0.0826194 = weight(abstract_txt:automatischer in 5773) [ClassicSimilarity], result of:
            0.0826194 = score(doc=5773,freq=1.0), product of:
              0.18137199 = queryWeight, product of:
                1.046534 = boost
                8.329592 = idf(docFreq=28, maxDocs=44218)
                0.02080622 = queryNorm
              0.45552456 = fieldWeight in 5773, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.329592 = idf(docFreq=28, maxDocs=44218)
                0.0546875 = fieldNorm(doc=5773)
          0.022191027 = weight(abstract_txt:einen in 5773) [ClassicSimilarity], result of:
            0.022191027 = score(doc=5773,freq=1.0), product of:
              0.09512847 = queryWeight, product of:
                1.071861 = boost
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.02080622 = queryNorm
              0.23327431 = fieldWeight in 5773, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.0546875 = fieldNorm(doc=5773)
          0.099552505 = weight(abstract_txt:suchsysteme in 5773) [ClassicSimilarity], result of:
            0.099552505 = score(doc=5773,freq=1.0), product of:
              0.20537631 = queryWeight, product of:
                1.1136364 = boost
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.02080622 = queryNorm
              0.48473218 = fieldWeight in 5773, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.863674 = idf(docFreq=16, maxDocs=44218)
                0.0546875 = fieldNorm(doc=5773)
        0.16 = coord(4/25)
    
  5. Terliesner, J.: Information Retrieval in Wikis : wie können klassische Methoden des Information Retrievals die Suchfunktion eines Wikis bereichern? (2010) 0.04
    0.041130304 = sum of:
      0.041130304 = product of:
        0.34275255 = sum of:
          0.031701468 = weight(abstract_txt:einen in 3504) [ClassicSimilarity], result of:
            0.031701468 = score(doc=3504,freq=1.0), product of:
              0.09512847 = queryWeight, product of:
                1.071861 = boost
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.02080622 = queryNorm
              0.333249 = fieldWeight in 3504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2655873 = idf(docFreq=1687, maxDocs=44218)
                0.078125 = fieldNorm(doc=3504)
          0.15552554 = weight(abstract_txt:retrievaltest in 3504) [ClassicSimilarity], result of:
            0.15552554 = score(doc=3504,freq=1.0), product of:
              0.21799609 = queryWeight, product of:
                1.1473411 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.02080622 = queryNorm
              0.71343267 = fieldWeight in 3504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.078125 = fieldNorm(doc=3504)
          0.15552554 = weight(abstract_txt:suchwerkzeuge in 3504) [ClassicSimilarity], result of:
            0.15552554 = score(doc=3504,freq=1.0), product of:
              0.21799609 = queryWeight, product of:
                1.1473411 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.02080622 = queryNorm
              0.71343267 = fieldWeight in 3504, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.078125 = fieldNorm(doc=3504)
        0.12 = coord(3/25)