Search (8 results, page 1 of 1)

  • × author_ss:"Xu, Y."
  1. Xu, Y.: ¬The dynamics of interactive information retrieval behavior : part I: an activity theory perspective (2007) 0.02
    0.021857034 = product of:
      0.04371407 = sum of:
        0.04371407 = sum of:
          0.006302999 = weight(_text_:e in 331) [ClassicSimilarity], result of:
            0.006302999 = score(doc=331,freq=2.0), product of:
              0.06614887 = queryWeight, product of:
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.04602077 = queryNorm
              0.09528506 = fieldWeight in 331, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.046875 = fieldNorm(doc=331)
          0.03741107 = weight(_text_:22 in 331) [ClassicSimilarity], result of:
            0.03741107 = score(doc=331,freq=2.0), product of:
              0.1611569 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04602077 = queryNorm
              0.23214069 = fieldWeight in 331, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=331)
      0.5 = coord(1/2)
    
    Date
    27. 5.2007 13:55:22
    Language
    e
  2. Xu, Y.; Ryan, K.: Changing lanes on the information superhighway : academic libraries and the Internet (1995) 0.00
    0.0018383748 = product of:
      0.0036767495 = sum of:
        0.0036767495 = product of:
          0.007353499 = sum of:
            0.007353499 = weight(_text_:e in 3672) [ClassicSimilarity], result of:
              0.007353499 = score(doc=3672,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.1111659 = fieldWeight in 3672, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3672)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  3. Xu, Y.: Relevance judgment in epistemic and hedonic information searches (2007) 0.00
    0.0015757497 = product of:
      0.0031514994 = sum of:
        0.0031514994 = product of:
          0.006302999 = sum of:
            0.006302999 = weight(_text_:e in 64) [ClassicSimilarity], result of:
              0.006302999 = score(doc=64,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.09528506 = fieldWeight in 64, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046875 = fieldNorm(doc=64)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  4. Xu, Y.; Liu, C.: ¬The dynamics of interactive information retrieval : part II: an empirical study from the activity theory perspective (2007) 0.00
    0.0015757497 = product of:
      0.0031514994 = sum of:
        0.0031514994 = product of:
          0.006302999 = sum of:
            0.006302999 = weight(_text_:e in 333) [ClassicSimilarity], result of:
              0.006302999 = score(doc=333,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.09528506 = fieldWeight in 333, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046875 = fieldNorm(doc=333)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  5. Xu, Y.; Wang, D.: Order effect in relevance judgment : mediation and causality (2008) 0.00
    0.0015757497 = product of:
      0.0031514994 = sum of:
        0.0031514994 = product of:
          0.006302999 = sum of:
            0.006302999 = weight(_text_:e in 1877) [ClassicSimilarity], result of:
              0.006302999 = score(doc=1877,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.09528506 = fieldWeight in 1877, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1877)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  6. Xu, Y.; Bernard, A.: Knowledge organization through statistical computation : a new approach (2009) 0.00
    0.0015757497 = product of:
      0.0031514994 = sum of:
        0.0031514994 = product of:
          0.006302999 = sum of:
            0.006302999 = weight(_text_:e in 3252) [ClassicSimilarity], result of:
              0.006302999 = score(doc=3252,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.09528506 = fieldWeight in 3252, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3252)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  7. Xu, Y.; Li, G.; Mou, L.; Lu, Y.: Learning non-taxonomic relations on demand for ontology extension (2014) 0.00
    0.0015757497 = product of:
      0.0031514994 = sum of:
        0.0031514994 = product of:
          0.006302999 = sum of:
            0.006302999 = weight(_text_:e in 2961) [ClassicSimilarity], result of:
              0.006302999 = score(doc=2961,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.09528506 = fieldWeight in 2961, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2961)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  8. Xu, Y.; Yin, H.: Novelty and topicality in interactive information retrieval (2008) 0.00
    0.0013131249 = product of:
      0.0026262498 = sum of:
        0.0026262498 = product of:
          0.0052524996 = sum of:
            0.0052524996 = weight(_text_:e in 1355) [ClassicSimilarity], result of:
              0.0052524996 = score(doc=1355,freq=2.0), product of:
                0.06614887 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.04602077 = queryNorm
                0.07940422 = fieldWeight in 1355, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1355)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e