Search (3 results, page 1 of 1)

  • × theme_ss:"Suchtaktik"
  • × type_ss:"m"
  • × year_i:[2010 TO 2020}
  1. Looking for information : a survey on research on information seeking, needs, and behavior (2016) 0.04
    0.039924767 = product of:
      0.14971787 = sum of:
        0.07369448 = weight(_text_:allgemeines in 3803) [ClassicSimilarity], result of:
          0.07369448 = score(doc=3803,freq=4.0), product of:
            0.16533206 = queryWeight, product of:
              5.705423 = idf(docFreq=399, maxDocs=44218)
              0.028978055 = queryNorm
            0.44573617 = fieldWeight in 3803, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.705423 = idf(docFreq=399, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3803)
        0.022492902 = product of:
          0.044985805 = sum of:
            0.044985805 = weight(_text_:bibliothekswesen in 3803) [ClassicSimilarity], result of:
              0.044985805 = score(doc=3803,freq=4.0), product of:
                0.12917466 = queryWeight, product of:
                  4.457672 = idf(docFreq=1392, maxDocs=44218)
                  0.028978055 = queryNorm
                0.34825563 = fieldWeight in 3803, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  4.457672 = idf(docFreq=1392, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3803)
          0.5 = coord(1/2)
        0.044985805 = weight(_text_:bibliothekswesen in 3803) [ClassicSimilarity], result of:
          0.044985805 = score(doc=3803,freq=4.0), product of:
            0.12917466 = queryWeight, product of:
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.028978055 = queryNorm
            0.34825563 = fieldWeight in 3803, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3803)
        0.008544678 = product of:
          0.017089356 = sum of:
            0.017089356 = weight(_text_:information in 3803) [ClassicSimilarity], result of:
              0.017089356 = score(doc=3803,freq=24.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.3359395 = fieldWeight in 3803, product of:
                  4.8989797 = tf(freq=24.0), with freq of:
                    24.0 = termFreq=24.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3803)
          0.5 = coord(1/2)
      0.26666668 = coord(4/15)
    
    Abstract
    The 4th edition of this popular and well-cited text is now co-authored, and includes significant changes from earlier texts. Presenting a comprehensive review of over a century of research on information behavior (IB), this book is intended for students in information studies and disciplines interested in research on information activities. The initial two chapters introduce IB as a multi-disciplinary topic, the 3rd provides a brief history of research on information seeking. Chapter four discusses what is meant by the terms "information" and "knowledge. "Chapter five discusses "information needs," and how they are addressed. The 6th chapter identifies many related concepts. Twelve models of information behavior (expanded from earlier editions) are illustrated in chapter seven. Chapter eight reviews various paradigms and theories informing IB research. Chapter nine examines research methods invoked in IB studies and a discussion of qualitative and mixed approaches. The 10th chapter gives examples of IB studies by context. The final chapter looks at strengths and weaknesses, recent trends, and future development.
    BK
    06.30 (Bibliothekswesen / Dokumentationswesen: Allgemeines)
    Classification
    06.30 (Bibliothekswesen / Dokumentationswesen: Allgemeines)
    RSWK
    Information Retrieval
    Series
    Studies in information
    Subject
    Information Retrieval
  2. Carstens, C.: Ontology based query expansion : retrieval support for the domain of educational research (2012) 0.01
    0.0075316774 = product of:
      0.05648758 = sum of:
        0.011009198 = weight(_text_:und in 4655) [ClassicSimilarity], result of:
          0.011009198 = score(doc=4655,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.17141339 = fieldWeight in 4655, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4655)
        0.04547838 = weight(_text_:informationswissenschaft in 4655) [ClassicSimilarity], result of:
          0.04547838 = score(doc=4655,freq=2.0), product of:
            0.13053758 = queryWeight, product of:
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.028978055 = queryNorm
            0.348393 = fieldWeight in 4655, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4655)
      0.13333334 = coord(2/15)
    
    Abstract
    Diese Arbeit untersucht, wie sich eine Forschungskontext-Ontologie als Quelle für die Generierung von Query-Expansion-Termen in einem Retrievalsystem für die Domäne der Erziehungswissenschaft nutzen lässt. Durch die Kombination traditioneller, groß angelegter automatischer Retrievalexperimente und nutzerzentrierter interaktiver Retievalexperimente wird ein umfassendes Bild der Effekte ontologiebasierter Query Expansion gezeichnet. Während die automatischen Experimente die Expansionseffekte einzelner Arten ontologiebasierter Expansionsterme im Detail untersuchen, beleuchten die interaktiven Experimente, wie ontologiebasierte Expansionsmechanismen das Suchverhalten der Nutzer sowie ihren Sucherfolg beeinflussen.
    Series
    Schriften zur Informationswissenschaft; Bd.60
  3. Looking for information : a survey on research on information seeking, needs, and behavior (2012) 0.00
    4.6511332E-4 = product of:
      0.0069766995 = sum of:
        0.0069766995 = product of:
          0.013953399 = sum of:
            0.013953399 = weight(_text_:information in 3802) [ClassicSimilarity], result of:
              0.013953399 = score(doc=3802,freq=4.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27429342 = fieldWeight in 3802, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3802)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)