Document (#520)

Author
Chowdhury, G.G.
Chowdhury, S.
Title
¬An overview of the information retrieval features of twenty digital libraries
Source
Program. 34(2000) no.4, S.341-373
Year
2000

Similar documents (author)

  1. Chowdhury, S.; Chowdhury, G.G.: Text retrieval system : an overview (1992) 5.63
    5.6343894 = sum of:
      5.6343894 = weight(author_txt:chowdhury in 6505) [ClassicSimilarity], result of:
        5.6343894 = score(doc=6505,freq=2.0), product of:
          0.99999994 = queryWeight, product of:
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.12549837 = queryNorm
          5.63439 = fieldWeight in 6505, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.5 = fieldNorm(doc=6505)
    
  2. Chowdhury, S.; Chowdhury, G.G.: Development of library management system using Micro-CDS/ISIS (1992) 5.63
    5.6343894 = sum of:
      5.6343894 = weight(author_txt:chowdhury in 438) [ClassicSimilarity], result of:
        5.6343894 = score(doc=438,freq=2.0), product of:
          0.99999994 = queryWeight, product of:
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.12549837 = queryNorm
          5.63439 = fieldWeight in 438, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.5 = fieldNorm(doc=438)
    
  3. Chowdhury, G.G.; Chowdhury, S.: Text retrieval and library management software in India (1994) 5.63
    5.6343894 = sum of:
      5.6343894 = weight(author_txt:chowdhury in 2540) [ClassicSimilarity], result of:
        5.6343894 = score(doc=2540,freq=2.0), product of:
          0.99999994 = queryWeight, product of:
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.12549837 = queryNorm
          5.63439 = fieldWeight in 2540, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.5 = fieldNorm(doc=2540)
    
  4. Chowdhury, S.; Chowdhury, G.G.: Using DDC to create a visual knowledge map as an aid to online information retrieval (2004) 5.63
    5.6343894 = sum of:
      5.6343894 = weight(author_txt:chowdhury in 3641) [ClassicSimilarity], result of:
        5.6343894 = score(doc=3641,freq=2.0), product of:
          0.99999994 = queryWeight, product of:
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.12549837 = queryNorm
          5.63439 = fieldWeight in 3641, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.5 = fieldNorm(doc=3641)
    
  5. Chowdhury, G.G.; Chowdhury, S.: Digital library research : major issues and trends (1999) 5.63
    5.6343894 = sum of:
      5.6343894 = weight(author_txt:chowdhury in 608) [ClassicSimilarity], result of:
        5.6343894 = score(doc=608,freq=2.0), product of:
          0.99999994 = queryWeight, product of:
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.12549837 = queryNorm
          5.63439 = fieldWeight in 608, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.9682307 = idf(docFreq=40, maxDocs=43556)
            0.5 = fieldNorm(doc=608)
    

Similar documents (content)

  1. Broughton, V.: ¬The need for a faceted classification as the basis of all methods of information retrieval (2006) 0.66
    0.6626123 = sum of:
      0.6626123 = product of:
        0.7730477 = sum of:
          0.027807998 = weight(abstract_txt:information in 4872) [ClassicSimilarity], result of:
            0.027807998 = score(doc=4872,freq=4.0), product of:
              0.09172838 = queryWeight, product of:
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.037822284 = queryNorm
              0.30315587 = fieldWeight in 4872, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.0625 = fieldNorm(doc=4872)
          0.08172165 = weight(abstract_txt:retrieval in 4872) [ClassicSimilarity], result of:
            0.08172165 = score(doc=4872,freq=4.0), product of:
              0.18819813 = queryWeight, product of:
                1.432372 = boost
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.037822284 = queryNorm
              0.43423197 = fieldWeight in 4872, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.0625 = fieldNorm(doc=4872)
          0.08023536 = weight(abstract_txt:digital in 4872) [ClassicSimilarity], result of:
            0.08023536 = score(doc=4872,freq=1.0), product of:
              0.29511264 = queryWeight, product of:
                1.7936679 = boost
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.037822284 = queryNorm
              0.27188048 = fieldWeight in 4872, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.0625 = fieldNorm(doc=4872)
          0.12985265 = weight(abstract_txt:features in 4872) [ClassicSimilarity], result of:
            0.12985265 = score(doc=4872,freq=2.0), product of:
              0.32287505 = queryWeight, product of:
                1.8761406 = boost
                4.550104 = idf(docFreq=1250, maxDocs=43556)
                0.037822284 = queryNorm
              0.40217617 = fieldWeight in 4872, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.550104 = idf(docFreq=1250, maxDocs=43556)
                0.0625 = fieldNorm(doc=4872)
          0.14708765 = weight(abstract_txt:overview in 4872) [ClassicSimilarity], result of:
            0.14708765 = score(doc=4872,freq=1.0), product of:
              0.44203982 = queryWeight, product of:
                2.195224 = boost
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.037822284 = queryNorm
              0.33274752 = fieldWeight in 4872, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.0625 = fieldNorm(doc=4872)
          0.3063424 = weight(abstract_txt:twenty in 4872) [ClassicSimilarity], result of:
            0.3063424 = score(doc=4872,freq=1.0), product of:
              0.72091156 = queryWeight, product of:
                2.8034263 = boost
                6.7990007 = idf(docFreq=131, maxDocs=43556)
                0.037822284 = queryNorm
              0.42493755 = fieldWeight in 4872, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.7990007 = idf(docFreq=131, maxDocs=43556)
                0.0625 = fieldNorm(doc=4872)
        0.85714287 = coord(6/7)
    
  2. Behnert, C.; Lewandowski, D.: ¬A framework for designing retrieval effectiveness studies of library information systems using human relevance assessments (2017) 0.59
    0.591822 = sum of:
      0.591822 = product of:
        0.690459 = sum of:
          0.036786523 = weight(abstract_txt:information in 698) [ClassicSimilarity], result of:
            0.036786523 = score(doc=698,freq=7.0), product of:
              0.09172838 = queryWeight, product of:
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.037822284 = queryNorm
              0.4010375 = fieldWeight in 698, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.0625 = fieldNorm(doc=698)
          0.122582465 = weight(abstract_txt:retrieval in 698) [ClassicSimilarity], result of:
            0.122582465 = score(doc=698,freq=9.0), product of:
              0.18819813 = queryWeight, product of:
                1.432372 = boost
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.037822284 = queryNorm
              0.65134794 = fieldWeight in 698, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.0625 = fieldNorm(doc=698)
          0.052692533 = weight(abstract_txt:libraries in 698) [ClassicSimilarity], result of:
            0.052692533 = score(doc=698,freq=1.0), product of:
              0.22296838 = queryWeight, product of:
                1.559085 = boost
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.037822284 = queryNorm
              0.23632288 = fieldWeight in 698, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.0625 = fieldNorm(doc=698)
          0.08023536 = weight(abstract_txt:digital in 698) [ClassicSimilarity], result of:
            0.08023536 = score(doc=698,freq=1.0), product of:
              0.29511264 = queryWeight, product of:
                1.7936679 = boost
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.037822284 = queryNorm
              0.27188048 = fieldWeight in 698, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.0625 = fieldNorm(doc=698)
          0.091819696 = weight(abstract_txt:features in 698) [ClassicSimilarity], result of:
            0.091819696 = score(doc=698,freq=1.0), product of:
              0.32287505 = queryWeight, product of:
                1.8761406 = boost
                4.550104 = idf(docFreq=1250, maxDocs=43556)
                0.037822284 = queryNorm
              0.2843815 = fieldWeight in 698, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.550104 = idf(docFreq=1250, maxDocs=43556)
                0.0625 = fieldNorm(doc=698)
          0.3063424 = weight(abstract_txt:twenty in 698) [ClassicSimilarity], result of:
            0.3063424 = score(doc=698,freq=1.0), product of:
              0.72091156 = queryWeight, product of:
                2.8034263 = boost
                6.7990007 = idf(docFreq=131, maxDocs=43556)
                0.037822284 = queryNorm
              0.42493755 = fieldWeight in 698, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.7990007 = idf(docFreq=131, maxDocs=43556)
                0.0625 = fieldNorm(doc=698)
        0.85714287 = coord(6/7)
    
  3. Castelli, V.: Still image search and retrieval (2009) 0.54
    0.5430604 = sum of:
      0.5430604 = product of:
        0.76028454 = sum of:
          0.061291233 = weight(abstract_txt:retrieval in 883) [ClassicSimilarity], result of:
            0.061291233 = score(doc=883,freq=1.0), product of:
              0.18819813 = queryWeight, product of:
                1.432372 = boost
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.037822284 = queryNorm
              0.32567397 = fieldWeight in 883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.09375 = fieldNorm(doc=883)
          0.0790388 = weight(abstract_txt:libraries in 883) [ClassicSimilarity], result of:
            0.0790388 = score(doc=883,freq=1.0), product of:
              0.22296838 = queryWeight, product of:
                1.559085 = boost
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.037822284 = queryNorm
              0.35448432 = fieldWeight in 883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.09375 = fieldNorm(doc=883)
          0.17020491 = weight(abstract_txt:digital in 883) [ClassicSimilarity], result of:
            0.17020491 = score(doc=883,freq=2.0), product of:
              0.29511264 = queryWeight, product of:
                1.7936679 = boost
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.037822284 = queryNorm
              0.57674557 = fieldWeight in 883, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.09375 = fieldNorm(doc=883)
          0.13772954 = weight(abstract_txt:features in 883) [ClassicSimilarity], result of:
            0.13772954 = score(doc=883,freq=1.0), product of:
              0.32287505 = queryWeight, product of:
                1.8761406 = boost
                4.550104 = idf(docFreq=1250, maxDocs=43556)
                0.037822284 = queryNorm
              0.42657226 = fieldWeight in 883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.550104 = idf(docFreq=1250, maxDocs=43556)
                0.09375 = fieldNorm(doc=883)
          0.31202003 = weight(abstract_txt:overview in 883) [ClassicSimilarity], result of:
            0.31202003 = score(doc=883,freq=2.0), product of:
              0.44203982 = queryWeight, product of:
                2.195224 = boost
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.037822284 = queryNorm
              0.7058641 = fieldWeight in 883, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.09375 = fieldNorm(doc=883)
        0.71428573 = coord(5/7)
    
  4. Xie, I.; Matusiak, K.M.: Discover digital libraries : theory and practice (2016) 0.53
    0.5279568 = sum of:
      0.5279568 = product of:
        0.7391395 = sum of:
          0.012165999 = weight(abstract_txt:information in 256) [ClassicSimilarity], result of:
            0.012165999 = score(doc=256,freq=1.0), product of:
              0.09172838 = queryWeight, product of:
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.037822284 = queryNorm
              0.13263069 = fieldWeight in 256, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.0546875 = fieldNorm(doc=256)
          0.03575322 = weight(abstract_txt:retrieval in 256) [ClassicSimilarity], result of:
            0.03575322 = score(doc=256,freq=1.0), product of:
              0.18819813 = queryWeight, product of:
                1.432372 = boost
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.037822284 = queryNorm
              0.18997648 = fieldWeight in 256, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.0546875 = fieldNorm(doc=256)
          0.17251272 = weight(abstract_txt:libraries in 256) [ClassicSimilarity], result of:
            0.17251272 = score(doc=256,freq=14.0), product of:
              0.22296838 = queryWeight, product of:
                1.559085 = boost
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.037822284 = queryNorm
              0.77370936 = fieldWeight in 256, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.0546875 = fieldNorm(doc=256)
          0.33669588 = weight(abstract_txt:digital in 256) [ClassicSimilarity], result of:
            0.33669588 = score(doc=256,freq=23.0), product of:
              0.29511264 = queryWeight, product of:
                1.7936679 = boost
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.037822284 = queryNorm
              1.1409063 = fieldWeight in 256, product of:
                4.7958317 = tf(freq=23.0), with freq of:
                  23.0 = termFreq=23.0
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.0546875 = fieldNorm(doc=256)
          0.18201168 = weight(abstract_txt:overview in 256) [ClassicSimilarity], result of:
            0.18201168 = score(doc=256,freq=2.0), product of:
              0.44203982 = queryWeight, product of:
                2.195224 = boost
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.037822284 = queryNorm
              0.41175404 = fieldWeight in 256, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.0546875 = fieldNorm(doc=256)
        0.71428573 = coord(5/7)
    
  5. Chowdhury, G.G.: Digital libraries and reference services : present and future (2002) 0.47
    0.46732524 = sum of:
      0.46732524 = product of:
        0.65425533 = sum of:
          0.039326444 = weight(abstract_txt:information in 464) [ClassicSimilarity], result of:
            0.039326444 = score(doc=464,freq=8.0), product of:
              0.09172838 = queryWeight, product of:
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.037822284 = queryNorm
              0.42872712 = fieldWeight in 464, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                2.425247 = idf(docFreq=10472, maxDocs=43556)
                0.0625 = fieldNorm(doc=464)
          0.040860824 = weight(abstract_txt:retrieval in 464) [ClassicSimilarity], result of:
            0.040860824 = score(doc=464,freq=1.0), product of:
              0.18819813 = queryWeight, product of:
                1.432372 = boost
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.037822284 = queryNorm
              0.21711598 = fieldWeight in 464, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4738557 = idf(docFreq=3669, maxDocs=43556)
                0.0625 = fieldNorm(doc=464)
          0.14903699 = weight(abstract_txt:libraries in 464) [ClassicSimilarity], result of:
            0.14903699 = score(doc=464,freq=8.0), product of:
              0.22296838 = queryWeight, product of:
                1.559085 = boost
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.037822284 = queryNorm
              0.66842204 = fieldWeight in 464, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.781166 = idf(docFreq=2698, maxDocs=43556)
                0.0625 = fieldNorm(doc=464)
          0.27794346 = weight(abstract_txt:digital in 464) [ClassicSimilarity], result of:
            0.27794346 = score(doc=464,freq=12.0), product of:
              0.29511264 = queryWeight, product of:
                1.7936679 = boost
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.037822284 = queryNorm
              0.9418216 = fieldWeight in 464, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                4.3500876 = idf(docFreq=1527, maxDocs=43556)
                0.0625 = fieldNorm(doc=464)
          0.14708765 = weight(abstract_txt:overview in 464) [ClassicSimilarity], result of:
            0.14708765 = score(doc=464,freq=1.0), product of:
              0.44203982 = queryWeight, product of:
                2.195224 = boost
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.037822284 = queryNorm
              0.33274752 = fieldWeight in 464, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3239603 = idf(docFreq=576, maxDocs=43556)
                0.0625 = fieldNorm(doc=464)
        0.71428573 = coord(5/7)