Document (#23464)

Author
Wolff, C.
Title
Effektivität von Recherchen im WWW : Vergleichende Evaluierung von such- und Metasuchmaschinen
Source
Informationskompetenz - Basiskompetenz in der Informationsgesellschaft: Proceedings des 7. Internationalen Symposiums für Informationswissenschaft (ISI 2000), Hrsg.: G. Knorz u. R. Kuhlen
Imprint
Konstanz : UVK, Universitätsverlag
Year
2000
Pages
S.31-48
Series
Schriften zur Informationswissenschaft; Bd.38
Abstract
Der vorliegende Beitrag befasst sich mit der Informationssuche im World Wide Web und ihrer Evaluierung. Ausgehend von einer Zusammenschau der wesentlichen Merkmale des World Wide Web als heterogener Dokumentkollektion (Kap. 1) werden Aufbau und Merkmale von Suchmaschinen und Metasuchmaschinen eingeführt sowie die Problematik der Evaluierung von Suchmaschinen und eine Übersicht bisheriger Ergebnisse diskutiert (Kap. 2). In Kap. 3 werden Aufbau, Durchführung und Ergebnisse einer Vergleichstudie vorgestellt, bei der mit Hilfe eines paper-and-pencil-Experiments ausgewählte Such- und Metasuchmaschinen evaluiert wurden. Schließlich zieht Kap. 4 Schlussfolgerungen aus dieser Studie und gibt einen Ausblick auf Optimierungsmöglichkeiten für Suchmaschinen
Theme
Suchmaschinen

Similar documents (author)

  1. Wolff, T.E.: Personal bibliographic databases : an industrial scientist's perspective (1992) 5.07 
    5.070855 = sum of:
  5.070855 = weight(author_txt:wolff in 5032) [ClassicSimilarity], result of:
    5.070855 = fieldWeight in 5032, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.113368 = idf(docFreq=35, maxDocs=44218)
      0.625 = fieldNorm(doc=5032)
  2. Wolff, J.G.: Computing, cognition and information compression (1993) 5.07 
    5.070855 = sum of:
  5.070855 = weight(author_txt:wolff in 6712) [ClassicSimilarity], result of:
    5.070855 = fieldWeight in 6712, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.113368 = idf(docFreq=35, maxDocs=44218)
      0.625 = fieldNorm(doc=6712)
  3. Wolff, M.: Poststructuralism and the ARTFL database : some theoretical considerations (1994) 5.07 
    5.070855 = sum of:
  5.070855 = weight(author_txt:wolff in 8741) [ClassicSimilarity], result of:
    5.070855 = fieldWeight in 8741, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.113368 = idf(docFreq=35, maxDocs=44218)
      0.625 = fieldNorm(doc=8741)
  4. Wolff, T.: Im Netz geistert inzwischen so manches Phantom : Frankfurt im Internet: nur wenige Institutionen liefern ansprechende Informationen; Stadt plant Bürgerservice (1997) 5.07 
    5.070855 = sum of:
  5.070855 = weight(author_txt:wolff in 7132) [ClassicSimilarity], result of:
    5.070855 = fieldWeight in 7132, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.113368 = idf(docFreq=35, maxDocs=44218)
      0.625 = fieldNorm(doc=7132)
  5. Wolff, R.: Vereinfachung der Nutzung von Online-Datenbanken durch gezielten Einsatz von Kommunikationssoftware (1997) 5.07 
    5.070855 = sum of:
  5.070855 = weight(author_txt:wolff in 185) [ClassicSimilarity], result of:
    5.070855 = fieldWeight in 185, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.113368 = idf(docFreq=35, maxDocs=44218)
      0.625 = fieldNorm(doc=185)

Similar documents (content)

  1. Reinke, S.; Schmidt, M.: Einmal suchen, alles finden : 7 Meta-Suchmaschinen im Test (2001) 0.15 
    0.14837626 = sum of:
  0.14837626 = product of:
    1.2364688 = sum of:
      0.109348446 = weight(abstract_txt:ergebnisse in 176) [ClassicSimilarity], result of:
        0.109348446 = score(doc=176,freq=1.0), product of:
          0.12769966 = queryWeight, product of:
            1.513359 = boost
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.015397313 = queryNorm
          0.856294 = fieldWeight in 176, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.15625 = fieldNorm(doc=176)
      0.20318885 = weight(abstract_txt:suchmaschinen in 176) [ClassicSimilarity], result of:
        0.20318885 = score(doc=176,freq=1.0), product of:
          0.22094202 = queryWeight, product of:
            2.4379897 = boost
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.015397313 = queryNorm
          0.9196478 = fieldWeight in 176, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.15625 = fieldNorm(doc=176)
      0.92393154 = weight(abstract_txt:metasuchmaschinen in 176) [ClassicSimilarity], result of:
        0.92393154 = score(doc=176,freq=1.0), product of:
          0.60641736 = queryWeight, product of:
            4.0390434 = boost
            9.7509775 = idf(docFreq=6, maxDocs=44218)
            0.015397313 = queryNorm
          1.5235902 = fieldWeight in 176, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.7509775 = idf(docFreq=6, maxDocs=44218)
            0.15625 = fieldNorm(doc=176)
    0.12 = coord(3/25)
  2. Groß, T.: Automatische Indexierung von Dokumenten in einer wissenschaftlichen Bibliothek : Implementierung und Evaluierung am Beispiel der Deutschen Zentralbibliothek für Wirtschaftswissenschaften (2011) 0.13 
    0.12685966 = sum of:
  0.12685966 = product of:
    0.6342983 = sum of:
      0.06309817 = weight(abstract_txt:befasst in 1083) [ClassicSimilarity], result of:
        0.06309817 = score(doc=1083,freq=1.0), product of:
          0.111515656 = queryWeight, product of:
            7.24254 = idf(docFreq=85, maxDocs=44218)
            0.015397313 = queryNorm
          0.56582344 = fieldWeight in 1083, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.24254 = idf(docFreq=85, maxDocs=44218)
            0.078125 = fieldNorm(doc=1083)
      0.07776403 = weight(abstract_txt:evaluiert in 1083) [ClassicSimilarity], result of:
        0.07776403 = score(doc=1083,freq=1.0), product of:
          0.12818696 = queryWeight, product of:
            1.0721462 = boost
            7.7650614 = idf(docFreq=50, maxDocs=44218)
            0.015397313 = queryNorm
          0.6066454 = fieldWeight in 1083, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.7650614 = idf(docFreq=50, maxDocs=44218)
            0.078125 = fieldNorm(doc=1083)
      0.0926245 = weight(abstract_txt:effektivität in 1083) [ClassicSimilarity], result of:
        0.0926245 = score(doc=1083,freq=1.0), product of:
          0.1440374 = queryWeight, product of:
            1.1365007 = boost
            8.231152 = idf(docFreq=31, maxDocs=44218)
            0.015397313 = queryNorm
          0.6430587 = fieldWeight in 1083, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.231152 = idf(docFreq=31, maxDocs=44218)
            0.078125 = fieldNorm(doc=1083)
      0.054674223 = weight(abstract_txt:ergebnisse in 1083) [ClassicSimilarity], result of:
        0.054674223 = score(doc=1083,freq=1.0), product of:
          0.12769966 = queryWeight, product of:
            1.513359 = boost
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.015397313 = queryNorm
          0.428147 = fieldWeight in 1083, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.078125 = fieldNorm(doc=1083)
      0.34613737 = weight(abstract_txt:evaluierung in 1083) [ClassicSimilarity], result of:
        0.34613737 = score(doc=1083,freq=2.0), product of:
          0.39705813 = queryWeight, product of:
            3.2682838 = boost
            7.890225 = idf(docFreq=44, maxDocs=44218)
            0.015397313 = queryNorm
          0.8717549 = fieldWeight in 1083, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.890225 = idf(docFreq=44, maxDocs=44218)
            0.078125 = fieldNorm(doc=1083)
    0.2 = coord(5/25)
  3. Fauldrath, J.; Kunisch, A.: Kooperative Evaluation der Usability von Suchmaschineninterfaces (2005) 0.11 
    0.10572525 = sum of:
  0.10572525 = product of:
    0.6607828 = sum of:
      0.07776403 = weight(abstract_txt:evaluiert in 3186) [ClassicSimilarity], result of:
        0.07776403 = score(doc=3186,freq=1.0), product of:
          0.12818696 = queryWeight, product of:
            1.0721462 = boost
            7.7650614 = idf(docFreq=50, maxDocs=44218)
            0.015397313 = queryNorm
          0.6066454 = fieldWeight in 3186, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.7650614 = idf(docFreq=50, maxDocs=44218)
            0.078125 = fieldNorm(doc=3186)
      0.019458575 = weight(abstract_txt:einer in 3186) [ClassicSimilarity], result of:
        0.019458575 = score(doc=3186,freq=1.0), product of:
          0.06413209 = queryWeight, product of:
            1.072469 = boost
            3.8837 = idf(docFreq=2472, maxDocs=44218)
            0.015397313 = queryNorm
          0.30341405 = fieldWeight in 3186, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.8837 = idf(docFreq=2472, maxDocs=44218)
            0.078125 = fieldNorm(doc=3186)
      0.101594426 = weight(abstract_txt:suchmaschinen in 3186) [ClassicSimilarity], result of:
        0.101594426 = score(doc=3186,freq=1.0), product of:
          0.22094202 = queryWeight, product of:
            2.4379897 = boost
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.015397313 = queryNorm
          0.4598239 = fieldWeight in 3186, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.078125 = fieldNorm(doc=3186)
      0.46196577 = weight(abstract_txt:metasuchmaschinen in 3186) [ClassicSimilarity], result of:
        0.46196577 = score(doc=3186,freq=1.0), product of:
          0.60641736 = queryWeight, product of:
            4.0390434 = boost
            9.7509775 = idf(docFreq=6, maxDocs=44218)
            0.015397313 = queryNorm
          0.7617951 = fieldWeight in 3186, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.7509775 = idf(docFreq=6, maxDocs=44218)
            0.078125 = fieldNorm(doc=3186)
    0.16 = coord(4/25)
  4. Moustafid, Y. El: Semantic Web Techniken für E-Learning (2003) 0.11 
    0.10511844 = sum of:
  0.10511844 = product of:
    0.37542298 = sum of:
      0.032503657 = weight(abstract_txt:übersicht in 585) [ClassicSimilarity], result of:
        0.032503657 = score(doc=585,freq=1.0), product of:
          0.11375386 = queryWeight, product of:
            1.0099856 = boost
            7.314861 = idf(docFreq=79, maxDocs=44218)
            0.015397313 = queryNorm
          0.28573674 = fieldWeight in 585, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.314861 = idf(docFreq=79, maxDocs=44218)
            0.0390625 = fieldNorm(doc=585)
      0.035793345 = weight(abstract_txt:eingeführt in 585) [ClassicSimilarity], result of:
        0.035793345 = score(doc=585,freq=1.0), product of:
          0.121305235 = queryWeight, product of:
            1.0429701 = boost
            7.5537524 = idf(docFreq=62, maxDocs=44218)
            0.015397313 = queryNorm
          0.29506844 = fieldWeight in 585, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.5537524 = idf(docFreq=62, maxDocs=44218)
            0.0390625 = fieldNorm(doc=585)
      0.019458575 = weight(abstract_txt:einer in 585) [ClassicSimilarity], result of:
        0.019458575 = score(doc=585,freq=4.0), product of:
          0.06413209 = queryWeight, product of:
            1.072469 = boost
            3.8837 = idf(docFreq=2472, maxDocs=44218)
            0.015397313 = queryNorm
          0.30341405 = fieldWeight in 585, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.8837 = idf(docFreq=2472, maxDocs=44218)
            0.0390625 = fieldNorm(doc=585)
      0.045794774 = weight(abstract_txt:zieht in 585) [ClassicSimilarity], result of:
        0.045794774 = score(doc=585,freq=1.0), product of:
          0.14296244 = queryWeight, product of:
            1.1322519 = boost
            8.200379 = idf(docFreq=32, maxDocs=44218)
            0.015397313 = queryNorm
          0.3203273 = fieldWeight in 585, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.200379 = idf(docFreq=32, maxDocs=44218)
            0.0390625 = fieldNorm(doc=585)
      0.039039336 = weight(abstract_txt:aufbau in 585) [ClassicSimilarity], result of:
        0.039039336 = score(doc=585,freq=1.0), product of:
          0.1619408 = queryWeight, product of:
            1.7042183 = boost
            6.1714344 = idf(docFreq=250, maxDocs=44218)
            0.015397313 = queryNorm
          0.24107166 = fieldWeight in 585, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.1714344 = idf(docFreq=250, maxDocs=44218)
            0.0390625 = fieldNorm(doc=585)
      0.10123887 = weight(abstract_txt:merkmale in 585) [ClassicSimilarity], result of:
        0.10123887 = score(doc=585,freq=2.0), product of:
          0.24261047 = queryWeight, product of:
            2.0859401 = boost
            7.5537524 = idf(docFreq=62, maxDocs=44218)
            0.015397313 = queryNorm
          0.4172898 = fieldWeight in 585, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.5537524 = idf(docFreq=62, maxDocs=44218)
            0.0390625 = fieldNorm(doc=585)
      0.101594426 = weight(abstract_txt:suchmaschinen in 585) [ClassicSimilarity], result of:
        0.101594426 = score(doc=585,freq=4.0), product of:
          0.22094202 = queryWeight, product of:
            2.4379897 = boost
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.015397313 = queryNorm
          0.4598239 = fieldWeight in 585, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.0390625 = fieldNorm(doc=585)
    0.28 = coord(7/25)
  5. Groß, T.: Automatische Indexierung von wirtschaftswissenschaftlichen Dokumenten : Implementierung und Evaluierung am Beispiel der Deutschen Zentralbibliothek für Wirtschaftswissenschaften (2010) 0.10 
    0.10148773 = sum of:
  0.10148773 = product of:
    0.50743866 = sum of:
      0.050478537 = weight(abstract_txt:befasst in 2078) [ClassicSimilarity], result of:
        0.050478537 = score(doc=2078,freq=1.0), product of:
          0.111515656 = queryWeight, product of:
            7.24254 = idf(docFreq=85, maxDocs=44218)
            0.015397313 = queryNorm
          0.45265874 = fieldWeight in 2078, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.24254 = idf(docFreq=85, maxDocs=44218)
            0.0625 = fieldNorm(doc=2078)
      0.062211223 = weight(abstract_txt:evaluiert in 2078) [ClassicSimilarity], result of:
        0.062211223 = score(doc=2078,freq=1.0), product of:
          0.12818696 = queryWeight, product of:
            1.0721462 = boost
            7.7650614 = idf(docFreq=50, maxDocs=44218)
            0.015397313 = queryNorm
          0.48531634 = fieldWeight in 2078, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.7650614 = idf(docFreq=50, maxDocs=44218)
            0.0625 = fieldNorm(doc=2078)
      0.0740996 = weight(abstract_txt:effektivität in 2078) [ClassicSimilarity], result of:
        0.0740996 = score(doc=2078,freq=1.0), product of:
          0.1440374 = queryWeight, product of:
            1.1365007 = boost
            8.231152 = idf(docFreq=31, maxDocs=44218)
            0.015397313 = queryNorm
          0.514447 = fieldWeight in 2078, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.231152 = idf(docFreq=31, maxDocs=44218)
            0.0625 = fieldNorm(doc=2078)
      0.04373938 = weight(abstract_txt:ergebnisse in 2078) [ClassicSimilarity], result of:
        0.04373938 = score(doc=2078,freq=1.0), product of:
          0.12769966 = queryWeight, product of:
            1.513359 = boost
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.015397313 = queryNorm
          0.34251758 = fieldWeight in 2078, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.0625 = fieldNorm(doc=2078)
      0.2769099 = weight(abstract_txt:evaluierung in 2078) [ClassicSimilarity], result of:
        0.2769099 = score(doc=2078,freq=2.0), product of:
          0.39705813 = queryWeight, product of:
            3.2682838 = boost
            7.890225 = idf(docFreq=44, maxDocs=44218)
            0.015397313 = queryNorm
          0.6974039 = fieldWeight in 2078, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.890225 = idf(docFreq=44, maxDocs=44218)
            0.0625 = fieldNorm(doc=2078)
    0.2 = coord(5/25)