Search (3 results, page 1 of 1)

  • × author_ss:"Wolfram, D."
  • × theme_ss:"Retrievalstudien"
  1. Wolfram, D.; Dimitroff, A.: Hypertext vs. Boolean-based searching in a bibliographic database environment : a direct comparison of searcher performance (1998) 0.01 
    0.012717713 = product of:
  0.05087085 = sum of:
    0.05087085 = product of:
      0.1017417 = sum of:
        0.1017417 = weight(_text_:processing in 6436) [ClassicSimilarity], result of:
          0.1017417 = score(doc=6436,freq=2.0), product of:
            0.18956426 = queryWeight, product of:
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.046827413 = queryNorm
            0.53671354 = fieldWeight in 6436, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.09375 = fieldNorm(doc=6436)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Information processing and management. 34(1998) no.6, S.669-679
  2. Wolfram, D.; Dimitroff, A.: Preliminary findings on searcher performance and perceptions of performance in a hypertext bibliographic retrieval system (1997) 0.01 
    0.009052756 = product of:
  0.036211025 = sum of:
    0.036211025 = weight(_text_:data in 1857) [ClassicSimilarity], result of:
      0.036211025 = score(doc=1857,freq=2.0), product of:
        0.14807065 = queryWeight, product of:
          3.1620505 = idf(docFreq=5088, maxDocs=44218)
          0.046827413 = queryNorm
        0.24455236 = fieldWeight in 1857, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1620505 = idf(docFreq=5088, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1857)
  0.25 = coord(1/4)
    Abstract
    Reports on research examining the relationship of searcher performance and perception of performance, particulary for hypertext-based onformation retrieval systems for bibliographic data. Employs a prototype hypertext bibliographic retrieval system called HyperLynx. Evaluates its use by 83 subjects at the School of Library and Information Science and the Golda Meir Library at the University of Wisconsin-Milwaukee, USA. Measures of system usgae indicate that there is no significant relationship between confidence and the number of record pages visited, although confident searchers searched for shorter time periods. The reality check measures shows that both novice and experienced searchers were over confident in their performance
  3. Wolfram, D.; Volz, A.; Dimitroff, A.: ¬The effect of linkage structure on retrieval performance in a hypertext-based bibliographic retrieval system (1996) 0.01 
    0.007418666 = product of:
  0.029674664 = sum of:
    0.029674664 = product of:
      0.05934933 = sum of:
        0.05934933 = weight(_text_:processing in 6622) [ClassicSimilarity], result of:
          0.05934933 = score(doc=6622,freq=2.0), product of:
            0.18956426 = queryWeight, product of:
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.046827413 = queryNorm
            0.3130829 = fieldWeight in 6622, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6622)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Information processing and management. 32(1996) no.5, S.529-541

Authors