Search (3 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × theme_ss:"Suchmaschinen"
  1. Agata, T.: ¬A measure for evaluating search engines on the World Wide Web : retrieval test with ESL (Expected Search Length) (1997) 0.01 
    0.011485667 = product of:
  0.045942668 = sum of:
    0.045942668 = weight(_text_:library in 3892) [ClassicSimilarity], result of:
      0.045942668 = score(doc=3892,freq=2.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.34860963 = fieldWeight in 3892, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.09375 = fieldNorm(doc=3892)
  0.25 = coord(1/4)
    Source
    Library and information science. 1997, no.37, S.1-11
  2. Serrano Cobos, J.; Quintero Orta, A.: Design, development and management of an information recovery system for an Internet Website : from documentary theory to practice (2003) 0.01 
    0.010464822 = product of:
  0.041859288 = sum of:
    0.041859288 = product of:
      0.083718576 = sum of:
        0.083718576 = weight(_text_:project in 2726) [ClassicSimilarity], result of:
          0.083718576 = score(doc=2726,freq=4.0), product of:
            0.21156175 = queryWeight, product of:
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.050121464 = queryNorm
            0.39571697 = fieldWeight in 2726, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.046875 = fieldNorm(doc=2726)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    A real case study is shown, explaining in a timeline the whole process of design, development and evaluation of a search engine used as a navigational help tool for end users and clients an a content website, e-commerce driven. The nature of the website is a community website, which will determine the core design of the information service. This study will involve several steps, such as information recovery system analysis, comparative analysis of other commercial search engines, service design, functionalities and scope; software selection, design of the project, project management, future service administration and conclusions.
  3. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01 
    0.0067907665 = product of:
  0.027163066 = sum of:
    0.027163066 = product of:
      0.054326132 = sum of:
        0.054326132 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
          0.054326132 = score(doc=261,freq=2.0), product of:
            0.17551683 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050121464 = queryNorm
            0.30952093 = fieldWeight in 261, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=261)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    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

Authors

Years

Languages