Document (#17648)

Author

Egghe, L.
Rousseau, R.

Title

Duality in information retrieval and the hypegeometric distribution

Source

Journal of documentation. 53(1997) no.5, S.499-496

Year

1997

Abstract

Asserts that duality is an important topic in informetrics, especially in connection with the classical informetric laws. Yet this concept is less studied in information retrieval. It deals with the unification or symmetry between queries and documents, search formulation versus indexing, and relevant versus retrieved documents. Elaborates these ideas and highlights the connection with the hypergeometric distribution

Content

Vgl. auch unter: http://www.emeraldinsight.com/10.1108/EUM0000000007208.

Theme

Informetrie

Similar documents (author)

1. Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 5.37

   5.36736 = sum of:
     5.36736 = sum of:
       2.68368 = weight(author_txt:rousseau in 728) [ClassicSimilarity], result of:
         2.68368 = score(doc=728,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 728, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=728)
       2.68368 = weight(author_txt:egghe in 728) [ClassicSimilarity], result of:
         2.68368 = score(doc=728,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 728, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=728)
   

2. Egghe, L.; Rousseau, R.: Topological aspects of information retrieval (1998) 5.37

   5.36736 = sum of:
     5.36736 = sum of:
       2.68368 = weight(author_txt:rousseau in 3157) [ClassicSimilarity], result of:
         2.68368 = score(doc=3157,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 3157, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=3157)
       2.68368 = weight(author_txt:egghe in 3157) [ClassicSimilarity], result of:
         2.68368 = score(doc=3157,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 3157, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=3157)
   

3. Egghe, L.; Rousseau, R.: ¬A theoretical study of recall and precision using a topological approach to information retrieval (1998) 5.37

   5.36736 = sum of:
     5.36736 = sum of:
       2.68368 = weight(author_txt:rousseau in 4267) [ClassicSimilarity], result of:
         2.68368 = score(doc=4267,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 4267, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=4267)
       2.68368 = weight(author_txt:egghe in 4267) [ClassicSimilarity], result of:
         2.68368 = score(doc=4267,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 4267, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=4267)
   

4. Egghe, L.; Rousseau, R.: ¬The influence of publication delays on the observed aging distribution of scientific literature (2000) 5.37

   5.36736 = sum of:
     5.36736 = sum of:
       2.68368 = weight(author_txt:rousseau in 5385) [ClassicSimilarity], result of:
         2.68368 = score(doc=5385,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 5385, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=5385)
       2.68368 = weight(author_txt:egghe in 5385) [ClassicSimilarity], result of:
         2.68368 = score(doc=5385,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 5385, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=5385)
   

5. Egghe, L.; Rousseau, R.: Aging, obsolescence, impact, growth, and utilization : definitions and relations (2000) 5.37

   5.36736 = sum of:
     5.36736 = sum of:
       2.68368 = weight(author_txt:rousseau in 6154) [ClassicSimilarity], result of:
         2.68368 = score(doc=6154,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 6154, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=6154)
       2.68368 = weight(author_txt:egghe in 6154) [ClassicSimilarity], result of:
         2.68368 = score(doc=6154,freq=1.0), product of:
           0.70710677 = queryWeight, product of:
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.09315566 = queryNorm
           3.795297 = fieldWeight in 6154, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.590594 = idf(docFreq=60, maxDocs=44421)
             0.5 = fieldNorm(doc=6154)
   

Similar documents (content)

1. Ye, F.Y.: ¬A theoretical approach to the unification of informetric models by wave-heat equations (2011) 0.17

   0.17245357 = sum of:
     0.17245357 = product of:
       0.8622678 = sum of:
         0.2621208 = weight(abstract_txt:laws in 464) [ClassicSimilarity], result of:
           0.2621208 = score(doc=464,freq=4.0), product of:
             0.16789219 = queryWeight, product of:
               1.4122341 = boost
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.016657157 = queryNorm
             1.5612448 = fieldWeight in 464, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.109375 = fieldNorm(doc=464)
         0.016820181 = weight(abstract_txt:with in 464) [ClassicSimilarity], result of:
           0.016820181 = score(doc=464,freq=1.0), product of:
             0.061608937 = queryWeight, product of:
               1.4817466 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.016657157 = queryNorm
             0.2730153 = fieldWeight in 464, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.109375 = fieldNorm(doc=464)
         0.24283534 = weight(abstract_txt:informetric in 464) [ClassicSimilarity], result of:
           0.24283534 = score(doc=464,freq=2.0), product of:
             0.20102377 = queryWeight, product of:
               1.5453084 = boost
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.016657157 = queryNorm
             1.2079931 = fieldWeight in 464, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.109375 = fieldNorm(doc=464)
         0.21409851 = weight(abstract_txt:unification in 464) [ClassicSimilarity], result of:
           0.21409851 = score(doc=464,freq=1.0), product of:
             0.23287629 = queryWeight, product of:
               1.6632367 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.016657157 = queryNorm
             0.9193659 = fieldWeight in 464, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.109375 = fieldNorm(doc=464)
         0.12639295 = weight(abstract_txt:distribution in 464) [ClassicSimilarity], result of:
           0.12639295 = score(doc=464,freq=1.0), product of:
             0.20647845 = queryWeight, product of:
               2.2148473 = boost
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.016657157 = queryNorm
             0.61213624 = fieldWeight in 464, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.109375 = fieldNorm(doc=464)
       0.2 = coord(5/25)
   

2. Bar-Ilan, J.: Informetrics (2009) 0.15

   0.15473016 = sum of:
     0.15473016 = product of:
       0.644709 = sum of:
         0.04851387 = weight(abstract_txt:studied in 809) [ClassicSimilarity], result of:
           0.04851387 = score(doc=809,freq=1.0), product of:
             0.10832087 = queryWeight, product of:
               1.1343511 = boost
               5.73276 = idf(docFreq=390, maxDocs=44421)
               0.016657157 = queryNorm
             0.44787186 = fieldWeight in 809, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.73276 = idf(docFreq=390, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.07556194 = weight(abstract_txt:deals in 809) [ClassicSimilarity], result of:
           0.07556194 = score(doc=809,freq=1.0), product of:
             0.1455471 = queryWeight, product of:
               1.3149015 = boost
               6.6452217 = idf(docFreq=156, maxDocs=44421)
               0.016657157 = queryNorm
             0.51915795 = fieldWeight in 809, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6452217 = idf(docFreq=156, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.09361458 = weight(abstract_txt:laws in 809) [ClassicSimilarity], result of:
           0.09361458 = score(doc=809,freq=1.0), product of:
             0.16789219 = queryWeight, product of:
               1.4122341 = boost
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.016657157 = queryNorm
             0.55758744 = fieldWeight in 809, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.012014415 = weight(abstract_txt:with in 809) [ClassicSimilarity], result of:
           0.012014415 = score(doc=809,freq=1.0), product of:
             0.061608937 = queryWeight, product of:
               1.4817466 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.016657157 = queryNorm
             0.19501092 = fieldWeight in 809, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.24155034 = weight(abstract_txt:informetrics in 809) [ClassicSimilarity], result of:
           0.24155034 = score(doc=809,freq=4.0), product of:
             0.19896956 = queryWeight, product of:
               1.5373925 = boost
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.016657157 = queryNorm
             1.2140065 = fieldWeight in 809, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.17345382 = weight(abstract_txt:informetric in 809) [ClassicSimilarity], result of:
           0.17345382 = score(doc=809,freq=2.0), product of:
             0.20102377 = queryWeight, product of:
               1.5453084 = boost
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.016657157 = queryNorm
             0.8628523 = fieldWeight in 809, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
       0.24 = coord(6/25)
   

3. Burrell, Q.L.: "Ambiguity" ans scientometric measurement : a dissenting view (2001) 0.13

   0.13028763 = sum of:
     0.13028763 = product of:
       0.54286516 = sum of:
         0.033237122 = weight(abstract_txt:topic in 981) [ClassicSimilarity], result of:
           0.033237122 = score(doc=981,freq=1.0), product of:
             0.08418159 = queryWeight, product of:
               5.053779 = idf(docFreq=770, maxDocs=44421)
               0.016657157 = queryNorm
             0.3948265 = fieldWeight in 981, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.053779 = idf(docFreq=770, maxDocs=44421)
               0.078125 = fieldNorm(doc=981)
         0.07099365 = weight(abstract_txt:classical in 981) [ClassicSimilarity], result of:
           0.07099365 = score(doc=981,freq=1.0), product of:
             0.13962007 = queryWeight, product of:
               1.2878503 = boost
               6.5085106 = idf(docFreq=179, maxDocs=44421)
               0.016657157 = queryNorm
             0.5084774 = fieldWeight in 981, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5085106 = idf(docFreq=179, maxDocs=44421)
               0.078125 = fieldNorm(doc=981)
         0.13239099 = weight(abstract_txt:laws in 981) [ClassicSimilarity], result of:
           0.13239099 = score(doc=981,freq=2.0), product of:
             0.16789219 = queryWeight, product of:
               1.4122341 = boost
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.016657157 = queryNorm
             0.7885477 = fieldWeight in 981, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.078125 = fieldNorm(doc=981)
         0.012014415 = weight(abstract_txt:with in 981) [ClassicSimilarity], result of:
           0.012014415 = score(doc=981,freq=1.0), product of:
             0.061608937 = queryWeight, product of:
               1.4817466 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.016657157 = queryNorm
             0.19501092 = fieldWeight in 981, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.078125 = fieldNorm(doc=981)
         0.12077517 = weight(abstract_txt:informetrics in 981) [ClassicSimilarity], result of:
           0.12077517 = score(doc=981,freq=1.0), product of:
             0.19896956 = queryWeight, product of:
               1.5373925 = boost
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.016657157 = queryNorm
             0.6070033 = fieldWeight in 981, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.078125 = fieldNorm(doc=981)
         0.17345382 = weight(abstract_txt:informetric in 981) [ClassicSimilarity], result of:
           0.17345382 = score(doc=981,freq=2.0), product of:
             0.20102377 = queryWeight, product of:
               1.5453084 = boost
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.016657157 = queryNorm
             0.8628523 = fieldWeight in 981, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.078125 = fieldNorm(doc=981)
       0.24 = coord(6/25)
   

4. Sarabia, J.M.; Sarabia, M.: Explicit expressions for the Leimkuhler curve in parametric families (2008) 0.13

   0.1271339 = sum of:
     0.1271339 = product of:
       0.6356695 = sum of:
         0.08032014 = weight(abstract_txt:classical in 3120) [ClassicSimilarity], result of:
           0.08032014 = score(doc=3120,freq=2.0), product of:
             0.13962007 = queryWeight, product of:
               1.2878503 = boost
               6.5085106 = idf(docFreq=179, maxDocs=44421)
               0.016657157 = queryNorm
             0.5752765 = fieldWeight in 3120, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.5085106 = idf(docFreq=179, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.13664152 = weight(abstract_txt:informetrics in 3120) [ClassicSimilarity], result of:
           0.13664152 = score(doc=3120,freq=2.0), product of:
             0.19896956 = queryWeight, product of:
               1.5373925 = boost
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.016657157 = queryNorm
             0.6867458 = fieldWeight in 3120, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.098120295 = weight(abstract_txt:informetric in 3120) [ClassicSimilarity], result of:
           0.098120295 = score(doc=3120,freq=1.0), product of:
             0.20102377 = queryWeight, product of:
               1.5453084 = boost
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.016657157 = queryNorm
             0.48810294 = fieldWeight in 3120, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.1436743 = weight(abstract_txt:symmetry in 3120) [ClassicSimilarity], result of:
           0.1436743 = score(doc=3120,freq=1.0), product of:
             0.25921547 = queryWeight, product of:
               1.7547768 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.016657157 = queryNorm
             0.5542659 = fieldWeight in 3120, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.17691328 = weight(abstract_txt:distribution in 3120) [ClassicSimilarity], result of:
           0.17691328 = score(doc=3120,freq=6.0), product of:
             0.20647845 = queryWeight, product of:
               2.2148473 = boost
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.016657157 = queryNorm
             0.8568123 = fieldWeight in 3120, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.5966744 = idf(docFreq=447, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
       0.2 = coord(5/25)
   

5. Robertson, S.E.: Query-document symmetry and dual models (1994) 0.12

   0.124355316 = sum of:
     0.124355316 = product of:
       0.6217766 = sum of:
         0.067691825 = weight(abstract_txt:queries in 8158) [ClassicSimilarity], result of:
           0.067691825 = score(doc=8158,freq=2.0), product of:
             0.08578216 = queryWeight, product of:
               1.0094619 = boost
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.016657157 = queryNorm
             0.78911304 = fieldWeight in 8158, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.1015973 = idf(docFreq=734, maxDocs=44421)
               0.109375 = fieldNorm(doc=8158)
         0.030294195 = weight(abstract_txt:retrieval in 8158) [ClassicSimilarity], result of:
           0.030294195 = score(doc=8158,freq=1.0), product of:
             0.07967079 = queryWeight, product of:
               1.3758022 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.016657157 = queryNorm
             0.3802422 = fieldWeight in 8158, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.109375 = fieldNorm(doc=8158)
         0.016820181 = weight(abstract_txt:with in 8158) [ClassicSimilarity], result of:
           0.016820181 = score(doc=8158,freq=1.0), product of:
             0.061608937 = queryWeight, product of:
               1.4817466 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.016657157 = queryNorm
             0.2730153 = fieldWeight in 8158, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.109375 = fieldNorm(doc=8158)
         0.0714808 = weight(abstract_txt:documents in 8158) [ClassicSimilarity], result of:
           0.0714808 = score(doc=8158,freq=2.0), product of:
             0.11207509 = queryWeight, product of:
               1.6317776 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.016657157 = queryNorm
             0.63779384 = fieldWeight in 8158, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.109375 = fieldNorm(doc=8158)
         0.4354896 = weight(abstract_txt:symmetry in 8158) [ClassicSimilarity], result of:
           0.4354896 = score(doc=8158,freq=3.0), product of:
             0.25921547 = queryWeight, product of:
               1.7547768 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.016657157 = queryNorm
             1.6800293 = fieldWeight in 8158, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.109375 = fieldNorm(doc=8158)
       0.2 = coord(5/25)