Search (2 results, page 1 of 1)

  • × author_ss:"Greisdorf, H."
  • × theme_ss:"Retrievalstudien"
  1. Spink, A.; Greisdorf, H.: Users' partial relevance judgements during online searching (1997) 0.00
    0.0012357258 = product of:
      0.01730016 = sum of:
        0.01730016 = weight(_text_:information in 623) [ClassicSimilarity], result of:
          0.01730016 = score(doc=623,freq=12.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3325631 = fieldWeight in 623, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=623)
      0.071428575 = coord(1/14)
    
    Abstract
    Reports results of research to examine users conducting their initial online search on a particular information problem. Findings from 3 separate studies of relevance judgements by 44 initial search users were examined, including 2 studies of 13 end users and a study of 18 user engaged in mediated online searches. Number of items was judged on the scale 'relevant', 'patially relevant' and 'not rlevant'. Results suggest that: a relationship exists between partially rlevant items retrieved anch changes in the users' information problem or question during an information seeking process; partial relevance judgements play an important role for users in the early stages of seeking information on a particular information problem; and 'highly' relevant items may or may not be the only items useful at the early stages of users' information seeking processes
  2. Greisdorf, H.; O'Connor, B.: Nodes of topicality modeling user notions of on topic documents (2003) 0.00
    3.6034497E-4 = product of:
      0.0050448296 = sum of:
        0.0050448296 = weight(_text_:information in 5175) [ClassicSimilarity], result of:
          0.0050448296 = score(doc=5175,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.09697737 = fieldWeight in 5175, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5175)
      0.071428575 = coord(1/14)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.14, S.1296-1304