Search (6 results, page 1 of 1)

  • × author_ss:"Ahlgren, P."
  • × type_ss:"a"
  1. Ahlgren, P.; Järvelin, K.: Measuring impact of twelve information scientists using the DCI index (2010) 0.01
    0.013986527 = product of:
      0.027973054 = sum of:
        0.027973054 = product of:
          0.04195958 = sum of:
            0.038397755 = weight(_text_:k in 3593) [ClassicSimilarity], result of:
              0.038397755 = score(doc=3593,freq=2.0), product of:
                0.16225883 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04545348 = queryNorm
                0.23664509 = fieldWeight in 3593, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3593)
            0.003561823 = weight(_text_:s in 3593) [ClassicSimilarity], result of:
              0.003561823 = score(doc=3593,freq=2.0), product of:
                0.049418733 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.04545348 = queryNorm
                0.072074346 = fieldWeight in 3593, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3593)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.7, S.1424-1439
  2. Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003) 0.01
    0.009002609 = product of:
      0.018005218 = sum of:
        0.018005218 = product of:
          0.027007826 = sum of:
            0.0023745487 = weight(_text_:s in 5171) [ClassicSimilarity], result of:
              0.0023745487 = score(doc=5171,freq=2.0), product of:
                0.049418733 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.04545348 = queryNorm
                0.048049565 = fieldWeight in 5171, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03125 = fieldNorm(doc=5171)
            0.024633277 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
              0.024633277 = score(doc=5171,freq=2.0), product of:
                0.15917034 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04545348 = queryNorm
                0.15476047 = fieldWeight in 5171, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=5171)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    9. 7.2006 10:22:35
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.6, S.549-568
  3. Ahlgren, P.; Grönqvist, L.: Evaluation of retrieval effectiveness with incomplete relevance data : theoretical and experimental comparison of three measures (2008) 0.00
    6.9257664E-4 = product of:
      0.0013851533 = sum of:
        0.0013851533 = product of:
          0.00415546 = sum of:
            0.00415546 = weight(_text_:s in 2032) [ClassicSimilarity], result of:
              0.00415546 = score(doc=2032,freq=2.0), product of:
                0.049418733 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.04545348 = queryNorm
                0.08408674 = fieldWeight in 2032, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2032)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 44(2008) no.1, S.212-225
  4. Ahlgren, P.; Kekäläinen, J.: Indexing strategies for Swedish full text retrieval under different user scenarios (2007) 0.00
    4.9469766E-4 = product of:
      9.893953E-4 = sum of:
        9.893953E-4 = product of:
          0.0029681858 = sum of:
            0.0029681858 = weight(_text_:s in 896) [ClassicSimilarity], result of:
              0.0029681858 = score(doc=896,freq=2.0), product of:
                0.049418733 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.04545348 = queryNorm
                0.060061958 = fieldWeight in 896, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=896)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 43(2007) no.1, S.81-102
  5. Ahlgren, P.; Colliander, C.; Sjögårde, P.: Exploring the relation between referencing practices and citation impact : a large-scale study based on Web of Science data (2018) 0.00
    4.9469766E-4 = product of:
      9.893953E-4 = sum of:
        9.893953E-4 = product of:
          0.0029681858 = sum of:
            0.0029681858 = weight(_text_:s in 4250) [ClassicSimilarity], result of:
              0.0029681858 = score(doc=4250,freq=2.0), product of:
                0.049418733 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.04545348 = queryNorm
                0.060061958 = fieldWeight in 4250, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4250)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Journal of the Association for Information Science and Technology. 69(2018) no.5, S.728-743
  6. Sjögårde, P.; Ahlgren, P.; Waltman, L.: Algorithmic labeling in hierarchical classifications of publications : evaluation of bibliographic fields and term weighting approaches (2021) 0.00
    4.9469766E-4 = product of:
      9.893953E-4 = sum of:
        9.893953E-4 = product of:
          0.0029681858 = sum of:
            0.0029681858 = weight(_text_:s in 261) [ClassicSimilarity], result of:
              0.0029681858 = score(doc=261,freq=2.0), product of:
                0.049418733 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.04545348 = queryNorm
                0.060061958 = fieldWeight in 261, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=261)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Journal of the Association for Information Science and Technology. 72(2021) no.7, S.853-869