Search (172 results, page 9 of 9)

  • × theme_ss:"Retrievalstudien"
  1. Gödert, W.; Liebig, M.: Maschinelle Indexierung auf dem Prüfstand : Ergebnisse eines Retrievaltests zum MILOS II Projekt (1997) 0.00 
    0.0019808484 = product of:
  0.009904242 = sum of:
    0.009904242 = product of:
      0.019808484 = sum of:
        0.019808484 = weight(_text_:h in 1174) [ClassicSimilarity], result of:
          0.019808484 = score(doc=1174,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.19214681 = fieldWeight in 1174, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1174)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Source
    Bibliotheksdienst. 31(1997) H.1, S.59-68
  2. Yerbury, H.; Parker, J.: Novice searchers' use of familiar structures in searching bibliographic information retrieval systems (1998) 0.00 
    0.00169787 = product of:
  0.00848935 = sum of:
    0.00848935 = product of:
      0.0169787 = sum of:
        0.0169787 = weight(_text_:h in 2874) [ClassicSimilarity], result of:
          0.0169787 = score(doc=2874,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.16469726 = fieldWeight in 2874, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.046875 = fieldNorm(doc=2874)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
  3. Rapke, K.: Automatische Indexierung von Volltexten für die Gruner+Jahr Pressedatenbank (2001) 0.00 
    0.00169787 = product of:
  0.00848935 = sum of:
    0.00848935 = product of:
      0.0169787 = sum of:
        0.0169787 = weight(_text_:h in 6386) [ClassicSimilarity], result of:
          0.0169787 = score(doc=6386,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.16469726 = fieldWeight in 6386, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.046875 = fieldNorm(doc=6386)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Source
    nfd Information - Wissenschaft und Praxis. 52(2001) H.5, S.251-262
  4. Oberhauser, O.; Labner, J.: OPAC-Erweiterung durch automatische Indexierung : Empirische Untersuchung mit Daten aus dem Österreichischen Verbundkatalog (2002) 0.00 
    0.00169787 = product of:
  0.00848935 = sum of:
    0.00848935 = product of:
      0.0169787 = sum of:
        0.0169787 = weight(_text_:h in 883) [ClassicSimilarity], result of:
          0.0169787 = score(doc=883,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.16469726 = fieldWeight in 883, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.046875 = fieldNorm(doc=883)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Source
    ABI-Technik. 23(2003) H.4, S.305-314
  5. Geist, K.: Qualität und Relevanz von bildungsbezogenen Suchergebnissen bei der Suche im Web (2012) 0.00 
    0.00169787 = product of:
  0.00848935 = sum of:
    0.00848935 = product of:
      0.0169787 = sum of:
        0.0169787 = weight(_text_:h in 570) [ClassicSimilarity], result of:
          0.0169787 = score(doc=570,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.16469726 = fieldWeight in 570, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.046875 = fieldNorm(doc=570)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Source
    Mitteilungen der Vereinigung Österreichischer Bibliothekarinnen und Bibliothekare. 65(2012) H.2, S.261-276
  6. Munkelt, J.; Schaer, P.; Lepsky, K.: Towards an IR test collection for the German National Library (2018) 0.00 
    0.00169787 = product of:
  0.00848935 = sum of:
    0.00848935 = product of:
      0.0169787 = sum of:
        0.0169787 = weight(_text_:h in 4311) [ClassicSimilarity], result of:
          0.0169787 = score(doc=4311,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.16469726 = fieldWeight in 4311, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.046875 = fieldNorm(doc=4311)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Abstract
    Automatic content indexing is one of the innovations that are increasingly changing the way libraries work. In theory, it promises a cataloguing service that would hardly be possible with humans in terms of speed, quantity and maybe quality. The German National Library (DNB) has also recognised this potential and is increasingly relying on the automatic indexing of their catalogue content. The DNB took a major step in this direction in 2017, which was announced in two papers. The announcement was rather restrained, but the content of the papers is all the more explosive for the library community: Since September 2017, the DNB has discontinued the intellectual indexing of series Band H and has switched to an automatic process for these series. The subject indexing of online publications (series O) has been purely automatical since 2010; from September 2017, monographs and periodicals published outside the publishing industry and university publications will no longer be indexed by people. This raises the question: What is the quality of the automatic indexing compared to the manual work or in other words to which degree can the automatic indexing replace people without a signi cant drop in regards to quality?
  7. Petras, V.; Womser-Hacker, C.: Evaluation im Information Retrieval (2023) 0.00 
    0.00169787 = product of:
  0.00848935 = sum of:
    0.00848935 = product of:
      0.0169787 = sum of:
        0.0169787 = weight(_text_:h in 808) [ClassicSimilarity], result of:
          0.0169787 = score(doc=808,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.16469726 = fieldWeight in 808, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.046875 = fieldNorm(doc=808)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Abstract
    Das Ziel einer Evaluation ist die Überprüfung, ob bzw. in welchem Ausmaß ein Informationssystem die an das System gestellten Anforderungen erfüllt. Informationssysteme können aus verschiedenen Perspektiven evaluiert werden. Für eine ganzheitliche Evaluation (als Synonym wird auch Evaluierung benutzt), die unterschiedliche Qualitätsaspekte betrachtet (z. B. wie gut ein System relevante Dokumente rankt, wie schnell ein System die Suche durchführt, wie die Ergebnispräsentation gestaltet ist oder wie Suchende durch das System geführt werden) und die Erfüllung mehrerer Anforderungen überprüft, empfiehlt es sich, sowohl eine perspektivische als auch methodische Triangulation (d. h. der Einsatz von mehreren Ansätzen zur Qualitätsüberprüfung) vorzunehmen. Im Information Retrieval (IR) konzentriert sich die Evaluation auf die Qualitätseinschätzung der Suchfunktion eines Information-Retrieval-Systems (IRS), wobei oft zwischen systemzentrierter und nutzerzentrierter Evaluation unterschieden wird. Dieses Kapitel setzt den Fokus auf die systemzentrierte Evaluation, während andere Kapitel dieses Handbuchs andere Evaluationsansätze diskutieren (s. Kapitel C 4 Interaktives Information Retrieval, C 7 Cross-Language Information Retrieval und D 1 Information Behavior).
  8. Voorbij, H.: Title keywords and subject descriptors : a comparison of subject search entries of books in the humanities and social sciences (1998) 0.00 
    0.0014148918 = product of:
  0.007074459 = sum of:
    0.007074459 = product of:
      0.014148918 = sum of:
        0.014148918 = weight(_text_:h in 4721) [ClassicSimilarity], result of:
          0.014148918 = score(doc=4721,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.13724773 = fieldWeight in 4721, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4721)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
  9. Greisdorf, H.; O'Connor, B.: Nodes of topicality modeling user notions of on topic documents (2003) 0.00 
    0.0014148918 = product of:
  0.007074459 = sum of:
    0.007074459 = product of:
      0.014148918 = sum of:
        0.014148918 = weight(_text_:h in 5175) [ClassicSimilarity], result of:
          0.014148918 = score(doc=5175,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.13724773 = fieldWeight in 5175, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5175)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
  10. Cooper, M.D.; Chen, H.-M.: Predicting the relevance of a library catalog search (2001) 0.00 
    0.0011319134 = product of:
  0.0056595667 = sum of:
    0.0056595667 = product of:
      0.011319133 = sum of:
        0.011319133 = weight(_text_:h in 6519) [ClassicSimilarity], result of:
          0.011319133 = score(doc=6519,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.10979818 = fieldWeight in 6519, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.03125 = fieldNorm(doc=6519)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
  11. Naderi, H.; Rumpler, B.: PERCIRS: a system to combine personalized and collaborative information retrieval (2010) 0.00 
    0.0011319134 = product of:
  0.0056595667 = sum of:
    0.0056595667 = product of:
      0.011319133 = sum of:
        0.011319133 = weight(_text_:h in 3960) [ClassicSimilarity], result of:
          0.011319133 = score(doc=3960,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.10979818 = fieldWeight in 3960, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.03125 = fieldNorm(doc=3960)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
  12. Lohmann, H.: KASCADE: Dokumentanreicherung und automatische Inhaltserschließung : Projektbericht und Ergebnisse des Retrievaltests (2000) 0.00 
    9.904242E-4 = product of:
  0.004952121 = sum of:
    0.004952121 = product of:
      0.009904242 = sum of:
        0.009904242 = weight(_text_:h in 494) [ClassicSimilarity], result of:
          0.009904242 = score(doc=494,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.096073404 = fieldWeight in 494, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.02734375 = fieldNorm(doc=494)
      0.5 = coord(1/2)
  0.2 = coord(1/5)

Authors

Years

Languages

  • e 132
  • d 32
  • nl 3
  • chi 2
  • f 1
  • m 1
  • More… Less…

Types

  • a 158
  • s 8
  • m 6
  • r 3
  • x 1
  • More… Less…

Themes

Subjects

Classifications