Document (#7271)

Author
Lancaster, F.W.
Title
Information retrieval systems : characteristics, testing and evaluation
Issue
2nd ed.
Imprint
New York : Wiley
Year
1979
Footnote
1st ed.: 1968; 3rd ed. u.d.T.: Information retrieval today (gemeinsam mit A.J. Warner)

Similar documents (author)

  1. Lancaster, F.W.: Vocabulary control in information retrieval systems (1977) 4.92
    4.917614 = sum of:
      4.917614 = weight(author_txt:lancaster in 1774) [ClassicSimilarity], result of:
        4.917614 = fieldWeight in 1774, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.8681827 = idf(docFreq=44, maxDocs=43254)
          0.625 = fieldNorm(doc=1774)
    
  2. Lancaster, F.W.: Toward paperless information systems (1978) 4.92
    4.917614 = sum of:
      4.917614 = weight(author_txt:lancaster in 3356) [ClassicSimilarity], result of:
        4.917614 = fieldWeight in 3356, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.8681827 = idf(docFreq=44, maxDocs=43254)
          0.625 = fieldNorm(doc=3356)
    
  3. Lancaster, F.W.: Libraries and librarians in an age of electronics (1982) 4.92
    4.917614 = sum of:
      4.917614 = weight(author_txt:lancaster in 6184) [ClassicSimilarity], result of:
        4.917614 = fieldWeight in 6184, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.8681827 = idf(docFreq=44, maxDocs=43254)
          0.625 = fieldNorm(doc=6184)
    
  4. Lancaster, F.W.: Librarians, technology and mediocrity (1993) 4.92
    4.917614 = sum of:
      4.917614 = weight(author_txt:lancaster in 6) [ClassicSimilarity], result of:
        4.917614 = fieldWeight in 6, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.8681827 = idf(docFreq=44, maxDocs=43254)
          0.625 = fieldNorm(doc=6)
    
  5. Lancaster, F.W.: Libraries in the year 2001 (1993) 4.92
    4.917614 = sum of:
      4.917614 = weight(author_txt:lancaster in 599) [ClassicSimilarity], result of:
        4.917614 = fieldWeight in 599, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.8681827 = idf(docFreq=44, maxDocs=43254)
          0.625 = fieldNorm(doc=599)
    

Similar documents (content)

  1. Morse, E.; Lewis, M.; Olsen, K.A.: Testing visual information retrieval methodologies case study : comparative analysis of textual, icon, graphical, and "spring" displays (2002) 0.97
    0.9743378 = sum of:
      0.9743378 = product of:
        1.1692054 = sum of:
          0.025234642 = weight(abstract_txt:information in 2192) [ClassicSimilarity], result of:
            0.025234642 = score(doc=2192,freq=1.0), product of:
              0.110909924 = queryWeight, product of:
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.04569987 = queryNorm
              0.22752374 = fieldWeight in 2192, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.09375 = fieldNorm(doc=2192)
          0.09930585 = weight(abstract_txt:systems in 2192) [ClassicSimilarity], result of:
            0.09930585 = score(doc=2192,freq=2.0), product of:
              0.21942136 = queryWeight, product of:
                1.406547 = boost
                3.4135768 = idf(docFreq=3870, maxDocs=43254)
                0.04569987 = queryNorm
              0.45258063 = fieldWeight in 2192, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4135768 = idf(docFreq=3870, maxDocs=43254)
                0.09375 = fieldNorm(doc=2192)
          0.07375333 = weight(abstract_txt:retrieval in 2192) [ClassicSimilarity], result of:
            0.07375333 = score(doc=2192,freq=1.0), product of:
              0.22672187 = queryWeight, product of:
                1.4297546 = boost
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.04569987 = queryNorm
              0.3253031 = fieldWeight in 2192, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.09375 = fieldNorm(doc=2192)
          0.22602028 = weight(abstract_txt:evaluation in 2192) [ClassicSimilarity], result of:
            0.22602028 = score(doc=2192,freq=2.0), product of:
              0.3796592 = queryWeight, product of:
                1.8501705 = boost
                4.490216 = idf(docFreq=1318, maxDocs=43254)
                0.04569987 = queryNorm
              0.5953241 = fieldWeight in 2192, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.490216 = idf(docFreq=1318, maxDocs=43254)
                0.09375 = fieldNorm(doc=2192)
          0.7448913 = weight(abstract_txt:testing in 2192) [ClassicSimilarity], result of:
            0.7448913 = score(doc=2192,freq=3.0), product of:
              0.7345034 = queryWeight, product of:
                2.573426 = boost
                6.245499 = idf(docFreq=227, maxDocs=43254)
                0.04569987 = queryNorm
              1.0141428 = fieldWeight in 2192, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.245499 = idf(docFreq=227, maxDocs=43254)
                0.09375 = fieldNorm(doc=2192)
        0.8333333 = coord(5/6)
    
  2. Behnert, C.; Lewandowski, D.: ¬A framework for designing retrieval effectiveness studies of library information systems using human relevance assessments (2017) 0.91
    0.91141576 = sum of:
      0.91141576 = sum of:
        0.04450972 = weight(abstract_txt:information in 5165) [ClassicSimilarity], result of:
          0.04450972 = score(doc=5165,freq=7.0), product of:
            0.110909924 = queryWeight, product of:
              2.42692 = idf(docFreq=10382, maxDocs=43254)
              0.04569987 = queryNorm
            0.40131414 = fieldWeight in 5165, product of:
              2.6457512 = tf(freq=7.0), with freq of:
                7.0 = termFreq=7.0
              2.42692 = idf(docFreq=10382, maxDocs=43254)
              0.0625 = fieldNorm(doc=5165)
        0.08108289 = weight(abstract_txt:systems in 5165) [ClassicSimilarity], result of:
          0.08108289 = score(doc=5165,freq=3.0), product of:
            0.21942136 = queryWeight, product of:
              1.406547 = boost
              3.4135768 = idf(docFreq=3870, maxDocs=43254)
              0.04569987 = queryNorm
            0.36953053 = fieldWeight in 5165, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              3.4135768 = idf(docFreq=3870, maxDocs=43254)
              0.0625 = fieldNorm(doc=5165)
        0.14750665 = weight(abstract_txt:retrieval in 5165) [ClassicSimilarity], result of:
          0.14750665 = score(doc=5165,freq=9.0), product of:
            0.22672187 = queryWeight, product of:
              1.4297546 = boost
              3.4699 = idf(docFreq=3658, maxDocs=43254)
              0.04569987 = queryNorm
            0.6506062 = fieldWeight in 5165, product of:
              3.0 = tf(freq=9.0), with freq of:
                9.0 = termFreq=9.0
              3.4699 = idf(docFreq=3658, maxDocs=43254)
              0.0625 = fieldNorm(doc=5165)
        0.21309397 = weight(abstract_txt:evaluation in 5165) [ClassicSimilarity], result of:
          0.21309397 = score(doc=5165,freq=4.0), product of:
            0.3796592 = queryWeight, product of:
              1.8501705 = boost
              4.490216 = idf(docFreq=1318, maxDocs=43254)
              0.04569987 = queryNorm
            0.561277 = fieldWeight in 5165, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.490216 = idf(docFreq=1318, maxDocs=43254)
              0.0625 = fieldNorm(doc=5165)
        0.13851374 = weight(abstract_txt:characteristics in 5165) [ClassicSimilarity], result of:
          0.13851374 = score(doc=5165,freq=1.0), product of:
            0.45223248 = queryWeight, product of:
              2.019276 = boost
              4.900621 = idf(docFreq=874, maxDocs=43254)
              0.04569987 = queryNorm
            0.3062888 = fieldWeight in 5165, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              4.900621 = idf(docFreq=874, maxDocs=43254)
              0.0625 = fieldNorm(doc=5165)
        0.28670877 = weight(abstract_txt:testing in 5165) [ClassicSimilarity], result of:
          0.28670877 = score(doc=5165,freq=1.0), product of:
            0.7345034 = queryWeight, product of:
              2.573426 = boost
              6.245499 = idf(docFreq=227, maxDocs=43254)
              0.04569987 = queryNorm
            0.3903437 = fieldWeight in 5165, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.245499 = idf(docFreq=227, maxDocs=43254)
              0.0625 = fieldNorm(doc=5165)
    
  3. Soergel, D.: Indexing and retrieval performance : the logical evidence (1994) 0.86
    0.86402196 = sum of:
      0.86402196 = product of:
        1.0368264 = sum of:
          0.08275487 = weight(abstract_txt:systems in 2580) [ClassicSimilarity], result of:
            0.08275487 = score(doc=2580,freq=2.0), product of:
              0.21942136 = queryWeight, product of:
                1.406547 = boost
                3.4135768 = idf(docFreq=3870, maxDocs=43254)
                0.04569987 = queryNorm
              0.3771505 = fieldWeight in 2580, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4135768 = idf(docFreq=3870, maxDocs=43254)
                0.078125 = fieldNorm(doc=2580)
          0.16261081 = weight(abstract_txt:retrieval in 2580) [ClassicSimilarity], result of:
            0.16261081 = score(doc=2580,freq=7.0), product of:
              0.22672187 = queryWeight, product of:
                1.4297546 = boost
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.04569987 = queryNorm
              0.71722597 = fieldWeight in 2580, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.078125 = fieldNorm(doc=2580)
          0.13318373 = weight(abstract_txt:evaluation in 2580) [ClassicSimilarity], result of:
            0.13318373 = score(doc=2580,freq=1.0), product of:
              0.3796592 = queryWeight, product of:
                1.8501705 = boost
                4.490216 = idf(docFreq=1318, maxDocs=43254)
                0.04569987 = queryNorm
              0.3507981 = fieldWeight in 2580, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.490216 = idf(docFreq=1318, maxDocs=43254)
                0.078125 = fieldNorm(doc=2580)
          0.29989105 = weight(abstract_txt:characteristics in 2580) [ClassicSimilarity], result of:
            0.29989105 = score(doc=2580,freq=3.0), product of:
              0.45223248 = queryWeight, product of:
                2.019276 = boost
                4.900621 = idf(docFreq=874, maxDocs=43254)
                0.04569987 = queryNorm
              0.6631347 = fieldWeight in 2580, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.900621 = idf(docFreq=874, maxDocs=43254)
                0.078125 = fieldNorm(doc=2580)
          0.35838595 = weight(abstract_txt:testing in 2580) [ClassicSimilarity], result of:
            0.35838595 = score(doc=2580,freq=1.0), product of:
              0.7345034 = queryWeight, product of:
                2.573426 = boost
                6.245499 = idf(docFreq=227, maxDocs=43254)
                0.04569987 = queryNorm
              0.4879296 = fieldWeight in 2580, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.245499 = idf(docFreq=227, maxDocs=43254)
                0.078125 = fieldNorm(doc=2580)
        0.8333333 = coord(5/6)
    
  4. Robertson, S.E.; Walker, S.; Beaulieu, M.: Laboratory experiments with Okapi : participation in the TREC programme (1997) 0.68
    0.67756885 = sum of:
      0.67756885 = product of:
        0.81308264 = sum of:
          0.025234642 = weight(abstract_txt:information in 3285) [ClassicSimilarity], result of:
            0.025234642 = score(doc=3285,freq=1.0), product of:
              0.110909924 = queryWeight, product of:
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.04569987 = queryNorm
              0.22752374 = fieldWeight in 3285, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.42692 = idf(docFreq=10382, maxDocs=43254)
                0.09375 = fieldNorm(doc=3285)
          0.070219845 = weight(abstract_txt:systems in 3285) [ClassicSimilarity], result of:
            0.070219845 = score(doc=3285,freq=1.0), product of:
              0.21942136 = queryWeight, product of:
                1.406547 = boost
                3.4135768 = idf(docFreq=3870, maxDocs=43254)
                0.04569987 = queryNorm
              0.32002282 = fieldWeight in 3285, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4135768 = idf(docFreq=3870, maxDocs=43254)
                0.09375 = fieldNorm(doc=3285)
          0.12774451 = weight(abstract_txt:retrieval in 3285) [ClassicSimilarity], result of:
            0.12774451 = score(doc=3285,freq=3.0), product of:
              0.22672187 = queryWeight, product of:
                1.4297546 = boost
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.04569987 = queryNorm
              0.5634415 = fieldWeight in 3285, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4699 = idf(docFreq=3658, maxDocs=43254)
                0.09375 = fieldNorm(doc=3285)
          0.15982048 = weight(abstract_txt:evaluation in 3285) [ClassicSimilarity], result of:
            0.15982048 = score(doc=3285,freq=1.0), product of:
              0.3796592 = queryWeight, product of:
                1.8501705 = boost
                4.490216 = idf(docFreq=1318, maxDocs=43254)
                0.04569987 = queryNorm
              0.42095774 = fieldWeight in 3285, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.490216 = idf(docFreq=1318, maxDocs=43254)
                0.09375 = fieldNorm(doc=3285)
          0.43006316 = weight(abstract_txt:testing in 3285) [ClassicSimilarity], result of:
            0.43006316 = score(doc=3285,freq=1.0), product of:
              0.7345034 = queryWeight, product of:
                2.573426 = boost
                6.245499 = idf(docFreq=227, maxDocs=43254)
                0.04569987 = queryNorm
              0.58551556 = fieldWeight in 3285, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.245499 = idf(docFreq=227, maxDocs=43254)
                0.09375 = fieldNorm(doc=3285)
        0.8333333 = coord(5/6)
    
  5. Zhang, X.; Han, H.: ¬An empirical testing of user stereotypes of information retrieval systems (2005) 0.67
    0.6709337 = sum of:
      0.6709337 = sum of:
        0.023791447 = weight(abstract_txt:information in 3032) [ClassicSimilarity], result of:
          0.023791447 = score(doc=3032,freq=2.0), product of:
            0.110909924 = queryWeight, product of:
              2.42692 = idf(docFreq=10382, maxDocs=43254)
              0.04569987 = queryNorm
            0.21451144 = fieldWeight in 3032, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.42692 = idf(docFreq=10382, maxDocs=43254)
              0.0625 = fieldNorm(doc=3032)
        0.0662039 = weight(abstract_txt:systems in 3032) [ClassicSimilarity], result of:
          0.0662039 = score(doc=3032,freq=2.0), product of:
            0.21942136 = queryWeight, product of:
              1.406547 = boost
              3.4135768 = idf(docFreq=3870, maxDocs=43254)
              0.04569987 = queryNorm
            0.3017204 = fieldWeight in 3032, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.4135768 = idf(docFreq=3870, maxDocs=43254)
              0.0625 = fieldNorm(doc=3032)
        0.049168885 = weight(abstract_txt:retrieval in 3032) [ClassicSimilarity], result of:
          0.049168885 = score(doc=3032,freq=1.0), product of:
            0.22672187 = queryWeight, product of:
              1.4297546 = boost
              3.4699 = idf(docFreq=3658, maxDocs=43254)
              0.04569987 = queryNorm
            0.21686874 = fieldWeight in 3032, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              3.4699 = idf(docFreq=3658, maxDocs=43254)
              0.0625 = fieldNorm(doc=3032)
        0.10654698 = weight(abstract_txt:evaluation in 3032) [ClassicSimilarity], result of:
          0.10654698 = score(doc=3032,freq=1.0), product of:
            0.3796592 = queryWeight, product of:
              1.8501705 = boost
              4.490216 = idf(docFreq=1318, maxDocs=43254)
              0.04569987 = queryNorm
            0.2806385 = fieldWeight in 3032, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              4.490216 = idf(docFreq=1318, maxDocs=43254)
              0.0625 = fieldNorm(doc=3032)
        0.13851374 = weight(abstract_txt:characteristics in 3032) [ClassicSimilarity], result of:
          0.13851374 = score(doc=3032,freq=1.0), product of:
            0.45223248 = queryWeight, product of:
              2.019276 = boost
              4.900621 = idf(docFreq=874, maxDocs=43254)
              0.04569987 = queryNorm
            0.3062888 = fieldWeight in 3032, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              4.900621 = idf(docFreq=874, maxDocs=43254)
              0.0625 = fieldNorm(doc=3032)
        0.28670877 = weight(abstract_txt:testing in 3032) [ClassicSimilarity], result of:
          0.28670877 = score(doc=3032,freq=1.0), product of:
            0.7345034 = queryWeight, product of:
              2.573426 = boost
              6.245499 = idf(docFreq=227, maxDocs=43254)
              0.04569987 = queryNorm
            0.3903437 = fieldWeight in 3032, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.245499 = idf(docFreq=227, maxDocs=43254)
              0.0625 = fieldNorm(doc=3032)