Document (#25262)

Author
Dresel, R.
Hörnig, D.
Kaluza, H.
Peter, A.
Roßmann, A.
Sieber, W.
Title
Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest
Source
nfd Information - Wissenschaft und Praxis. 52(2001) H.7, S.381-392
Year
2001
Abstract
Die deutschen Suchmaschinen, Abacho, Acoon, Fireball und Lycos sowie die Web-Kataloge Web.de und Yahoo! werden einem Qualitätstest nach relativem Recall, Precision und Availability unterzogen. Die Methoden der Retrievaltests werden vorgestellt. Im Durchschnitt werden bei einem Cut-Off-Wert von 25 ein Recall von rund 22%, eine Precision von knapp 19% und eine Verfügbarkeit von 24% erreicht
Footnote
Vgl. auch den Bericht in: nfd 53(2002) H.2, S.71
Theme
Suchmaschinen
Retrievalstudien
Object
Abacho
Acoon
Fireball
Lycos
Web.de
Yahoo

Similar documents (author)

  1. Sieber, W.: Visualisierung von Thesaurus-Strukturen unter besonderer Berücksichtigung eines Hyperbolic Tree Views (2004) 6.09 
    6.094361 = sum of:
  6.094361 = weight(author_txt:sieber in 1456) [ClassicSimilarity], result of:
    6.094361 = fieldWeight in 1456, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.625 = fieldNorm(doc=1456)
  2. Sieber, W.: Thesaurus-Arbeit versus Informationsvisualisierung : Analyse und Evaluation am Maßstab der Usability (2007) 6.09 
    6.094361 = sum of:
  6.094361 = weight(author_txt:sieber in 1457) [ClassicSimilarity], result of:
    6.094361 = fieldWeight in 1457, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.625 = fieldNorm(doc=1457)
  3. Griese, J.; Sieber, P.: Internet als erste Ausbaustufe des Information Highway (1996) 4.88 
    4.8754888 = sum of:
  4.8754888 = weight(author_txt:sieber in 4965) [ClassicSimilarity], result of:
    4.8754888 = fieldWeight in 4965, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.5 = fieldNorm(doc=4965)
  4. Sieber, M.; Hupfer, G.: ¬Die Common Bibliographic Data Zone (CBDZ) : ein Werkstattbericht (2016) 4.88 
    4.8754888 = sum of:
  4.8754888 = weight(author_txt:sieber in 4959) [ClassicSimilarity], result of:
    4.8754888 = fieldWeight in 4959, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.5 = fieldNorm(doc=4959)
  5. Greinoecker, A.; Seaward, L; Terras, M.; Ares Oliveira, S.; Bosch, V.; Bryan, M.; Colutto, S.; Déjean, H.; Diem, M.; Fiel, S.; Gatos, B.; Grüning, T.; Hackl, G.; Haukkovaara, V.; Heyer, G.; Hirvonen, L.; Hodel, T.; Jokinen, M.; Kahle, P.; Kallio, M.; Kaplan, F.; Kleber, F.; Labahn, R.; Lang, E.M.; Laube, S.; Leifert, G.; Louloudis, G.; McNicholl, R.; Meunier, J.-L.; Michael, J.; Mühlbauer, E.; Philipp, N.; Pratikakis, I.; Pérez, J.P.; Putz, H.; Retsinas, G.; Romero, V.; Sablatnig, R.; Sánchez, J.A.; Schofield, P.; Sfikas, G.; Sieber, C.; Stamatopoulos, N.; Tobias Strauß, T.; Terbul, T.; Ulreich, B; Villegas, M.; Vidal, E.; Walcher, J.; Weidemann, M.; Wurster, H.; Zagoris, K.; Toselli, A.H.; Muehlberger, G,: Transforming scholarship in the archives through handwritten text recognition (2019) 0.91 
    0.9141542 = sum of:
  0.9141542 = weight(author_txt:sieber in 5458) [ClassicSimilarity], result of:
    0.9141542 = fieldWeight in 5458, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.09375 = fieldNorm(doc=5458)

Similar documents (content)

  1. Krüger, K.: Suchmaschinen-Spamming : Vergleichend-kritische Analysen zur Wirkung kommerzieller Strategien der Website-Optimierung auf das Ranking in www-Suchmaschinen (2004) 0.16 
    0.15879531 = sum of:
  0.15879531 = product of:
    0.66164714 = sum of:
      0.08534472 = weight(abstract_txt:methoden in 3700) [ClassicSimilarity], result of:
        0.08534472 = score(doc=3700,freq=2.0), product of:
          0.11130337 = queryWeight, product of:
            1.0553079 = boost
            5.7833843 = idf(docFreq=369, maxDocs=44218)
            0.018236734 = queryNorm
          0.7667757 = fieldWeight in 3700, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.7833843 = idf(docFreq=369, maxDocs=44218)
            0.09375 = fieldNorm(doc=3700)
      0.06360921 = weight(abstract_txt:suchmaschinen in 3700) [ClassicSimilarity], result of:
        0.06360921 = score(doc=3700,freq=1.0), product of:
          0.11527821 = queryWeight, product of:
            1.073986 = boost
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.018236734 = queryNorm
          0.5517887 = fieldWeight in 3700, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.09375 = fieldNorm(doc=3700)
      0.037483733 = weight(abstract_txt:eine in 3700) [ClassicSimilarity], result of:
        0.037483733 = score(doc=3700,freq=2.0), product of:
          0.081026874 = queryWeight, product of:
            1.2733699 = boost
            3.4892128 = idf(docFreq=3668, maxDocs=44218)
            0.018236734 = queryNorm
          0.46260864 = fieldWeight in 3700, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.4892128 = idf(docFreq=3668, maxDocs=44218)
            0.09375 = fieldNorm(doc=3700)
      0.1289149 = weight(abstract_txt:lycos in 3700) [ClassicSimilarity], result of:
        0.1289149 = score(doc=3700,freq=1.0), product of:
          0.18461597 = queryWeight, product of:
            1.3591259 = boost
            7.448392 = idf(docFreq=69, maxDocs=44218)
            0.018236734 = queryNorm
          0.6982868 = fieldWeight in 3700, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.448392 = idf(docFreq=69, maxDocs=44218)
            0.09375 = fieldNorm(doc=3700)
      0.2892411 = weight(abstract_txt:fireball in 3700) [ClassicSimilarity], result of:
        0.2892411 = score(doc=3700,freq=1.0), product of:
          0.31640297 = queryWeight, product of:
            1.7792841 = boost
            9.7509775 = idf(docFreq=6, maxDocs=44218)
            0.018236734 = queryNorm
          0.9141542 = fieldWeight in 3700, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.7509775 = idf(docFreq=6, maxDocs=44218)
            0.09375 = fieldNorm(doc=3700)
      0.05705352 = weight(abstract_txt:werden in 3700) [ClassicSimilarity], result of:
        0.05705352 = score(doc=3700,freq=2.0), product of:
          0.12273052 = queryWeight, product of:
            1.9193844 = boost
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.018236734 = queryNorm
          0.46486822 = fieldWeight in 3700, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.09375 = fieldNorm(doc=3700)
    0.24 = coord(6/25)
  2. Grasso, L.L.; Wahlig, H.: Google und seine Suchparameter : Eine Top 20-Precision Analyse anhand repräsentativ ausgewählter Anfragen (2005) 0.13 
    0.13486269 = sum of:
  0.13486269 = product of:
    0.6743134 = sum of:
      0.06846408 = weight(abstract_txt:vorgestellt in 3275) [ClassicSimilarity], result of:
        0.06846408 = score(doc=3275,freq=1.0), product of:
          0.09994243 = queryWeight, product of:
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.018236734 = queryNorm
          0.68503517 = fieldWeight in 3275, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.125 = fieldNorm(doc=3275)
      0.03534 = weight(abstract_txt:eine in 3275) [ClassicSimilarity], result of:
        0.03534 = score(doc=3275,freq=1.0), product of:
          0.081026874 = queryWeight, product of:
            1.2733699 = boost
            3.4892128 = idf(docFreq=3668, maxDocs=44218)
            0.018236734 = queryNorm
          0.4361516 = fieldWeight in 3275, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.4892128 = idf(docFreq=3668, maxDocs=44218)
            0.125 = fieldNorm(doc=3275)
      0.27889636 = weight(abstract_txt:unterzogen in 3275) [ClassicSimilarity], result of:
        0.27889636 = score(doc=3275,freq=1.0), product of:
          0.25491965 = queryWeight, product of:
            1.5970801 = boost
            8.752448 = idf(docFreq=18, maxDocs=44218)
            0.018236734 = queryNorm
          1.094056 = fieldWeight in 3275, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.752448 = idf(docFreq=18, maxDocs=44218)
            0.125 = fieldNorm(doc=3275)
      0.093168005 = weight(abstract_txt:werden in 3275) [ClassicSimilarity], result of:
        0.093168005 = score(doc=3275,freq=3.0), product of:
          0.12273052 = queryWeight, product of:
            1.9193844 = boost
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.018236734 = queryNorm
          0.7591266 = fieldWeight in 3275, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.125 = fieldNorm(doc=3275)
      0.19844496 = weight(abstract_txt:precision in 3275) [ClassicSimilarity], result of:
        0.19844496 = score(doc=3275,freq=2.0), product of:
          0.203174 = queryWeight, product of:
            2.016388 = boost
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.018236734 = queryNorm
          0.9767242 = fieldWeight in 3275, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.125 = fieldNorm(doc=3275)
    0.2 = coord(5/25)
  3. Lewandowski, D.: Abfragesprachen und erweiterte Funktionen von WWW-Suchmaschinen (2004) 0.12 
    0.12357058 = sum of:
  0.12357058 = product of:
    0.7723161 = sum of:
      0.12853678 = weight(abstract_txt:suchmaschinen in 2314) [ClassicSimilarity], result of:
        0.12853678 = score(doc=2314,freq=3.0), product of:
          0.11527821 = queryWeight, product of:
            1.073986 = boost
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.018236734 = queryNorm
          1.1150137 = fieldWeight in 2314, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.109375 = fieldNorm(doc=2314)
      0.23976894 = weight(abstract_txt:retrievaltests in 2314) [ClassicSimilarity], result of:
        0.23976894 = score(doc=2314,freq=1.0), product of:
          0.2519405 = queryWeight, product of:
            1.5877204 = boost
            8.701155 = idf(docFreq=19, maxDocs=44218)
            0.018236734 = queryNorm
          0.95168877 = fieldWeight in 2314, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.701155 = idf(docFreq=19, maxDocs=44218)
            0.109375 = fieldNorm(doc=2314)
      0.33744794 = weight(abstract_txt:fireball in 2314) [ClassicSimilarity], result of:
        0.33744794 = score(doc=2314,freq=1.0), product of:
          0.31640297 = queryWeight, product of:
            1.7792841 = boost
            9.7509775 = idf(docFreq=6, maxDocs=44218)
            0.018236734 = queryNorm
          1.0665132 = fieldWeight in 2314, 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=2314)
      0.06656244 = weight(abstract_txt:werden in 2314) [ClassicSimilarity], result of:
        0.06656244 = score(doc=2314,freq=2.0), product of:
          0.12273052 = queryWeight, product of:
            1.9193844 = boost
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.018236734 = queryNorm
          0.54234624 = fieldWeight in 2314, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.109375 = fieldNorm(doc=2314)
    0.16 = coord(4/25)
  4. Nowag, B.: Query by Humming : ein Vergleich von Suchmaschinen zur Melodie-Erkennung (2010) 0.12 
    0.117783956 = sum of:
  0.117783956 = product of:
    0.58891976 = sum of:
      0.06846408 = weight(abstract_txt:vorgestellt in 3506) [ClassicSimilarity], result of:
        0.06846408 = score(doc=3506,freq=1.0), product of:
          0.09994243 = queryWeight, product of:
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.018236734 = queryNorm
          0.68503517 = fieldWeight in 3506, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.4802814 = idf(docFreq=500, maxDocs=44218)
            0.125 = fieldNorm(doc=3506)
      0.11994268 = weight(abstract_txt:suchmaschinen in 3506) [ClassicSimilarity], result of:
        0.11994268 = score(doc=3506,freq=2.0), product of:
          0.11527821 = queryWeight, product of:
            1.073986 = boost
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.018236734 = queryNorm
          1.0404627 = fieldWeight in 3506, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.125 = fieldNorm(doc=3506)
      0.06782602 = weight(abstract_txt:einem in 3506) [ClassicSimilarity], result of:
        0.06782602 = score(doc=3506,freq=1.0), product of:
          0.125136 = queryWeight, product of:
            1.5824543 = boost
            4.3361473 = idf(docFreq=1572, maxDocs=44218)
            0.018236734 = queryNorm
          0.5420184 = fieldWeight in 3506, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.3361473 = idf(docFreq=1572, maxDocs=44218)
            0.125 = fieldNorm(doc=3506)
      0.27889636 = weight(abstract_txt:unterzogen in 3506) [ClassicSimilarity], result of:
        0.27889636 = score(doc=3506,freq=1.0), product of:
          0.25491965 = queryWeight, product of:
            1.5970801 = boost
            8.752448 = idf(docFreq=18, maxDocs=44218)
            0.018236734 = queryNorm
          1.094056 = fieldWeight in 3506, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.752448 = idf(docFreq=18, maxDocs=44218)
            0.125 = fieldNorm(doc=3506)
      0.053790573 = weight(abstract_txt:werden in 3506) [ClassicSimilarity], result of:
        0.053790573 = score(doc=3506,freq=1.0), product of:
          0.12273052 = queryWeight, product of:
            1.9193844 = boost
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.018236734 = queryNorm
          0.43828195 = fieldWeight in 3506, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.5062556 = idf(docFreq=3606, maxDocs=44218)
            0.125 = fieldNorm(doc=3506)
    0.2 = coord(5/25)
  5. Zurawski, A.: Fit fürs Netz : alles über Suchmaschinen (1997) 0.12 
    0.11745094 = sum of:
  0.11745094 = product of:
    0.7340684 = sum of:
      0.08481228 = weight(abstract_txt:suchmaschinen in 7624) [ClassicSimilarity], result of:
        0.08481228 = score(doc=7624,freq=1.0), product of:
          0.11527821 = queryWeight, product of:
            1.073986 = boost
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.018236734 = queryNorm
          0.73571825 = fieldWeight in 7624, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.885746 = idf(docFreq=333, maxDocs=44218)
            0.125 = fieldNorm(doc=7624)
      0.120771766 = weight(abstract_txt:yahoo in 7624) [ClassicSimilarity], result of:
        0.120771766 = score(doc=7624,freq=1.0), product of:
          0.14590998 = queryWeight, product of:
            1.2082798 = boost
            6.6217136 = idf(docFreq=159, maxDocs=44218)
            0.018236734 = queryNorm
          0.8277142 = fieldWeight in 7624, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.6217136 = idf(docFreq=159, maxDocs=44218)
            0.125 = fieldNorm(doc=7624)
      0.17188652 = weight(abstract_txt:lycos in 7624) [ClassicSimilarity], result of:
        0.17188652 = score(doc=7624,freq=1.0), product of:
          0.18461597 = queryWeight, product of:
            1.3591259 = boost
            7.448392 = idf(docFreq=69, maxDocs=44218)
            0.018236734 = queryNorm
          0.931049 = fieldWeight in 7624, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.448392 = idf(docFreq=69, maxDocs=44218)
            0.125 = fieldNorm(doc=7624)
      0.35659787 = weight(abstract_txt:web.de in 7624) [ClassicSimilarity], result of:
        0.35659787 = score(doc=7624,freq=1.0), product of:
          0.3003036 = queryWeight, product of:
            1.7334261 = boost
            9.499662 = idf(docFreq=8, maxDocs=44218)
            0.018236734 = queryNorm
          1.1874578 = fieldWeight in 7624, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.499662 = idf(docFreq=8, maxDocs=44218)
            0.125 = fieldNorm(doc=7624)
    0.16 = coord(4/25)