Document (#5187)

Author

Sparck Jones, K.

Title

¬A statistical interpretation of term specifity and its application in retrieval

Source

Journal of documentation. 28(1972), S.11-21

Year

1972

Theme

Retrievalalgorithmen

Similar documents (author)

1. Sparck Jones, K.: Fashionable trends and feasible strategies in information management (1988) 5.31

   5.3145585 = sum of:
     5.3145585 = sum of:
       2.0560415 = weight(author_txt:jones in 816) [ClassicSimilarity], result of:
         2.0560415 = score(doc=816,freq=1.0), product of:
           0.5925794 = queryWeight, product of:
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.08539477 = queryNorm
           3.469647 = fieldWeight in 816, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.5 = fieldNorm(doc=816)
       3.258517 = weight(author_txt:sparck in 816) [ClassicSimilarity], result of:
         3.258517 = score(doc=816,freq=1.0), product of:
           0.80551195 = queryWeight, product of:
             1.1659038 = boost
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.08539477 = queryNorm
           4.0452747 = fieldWeight in 816, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.5 = fieldNorm(doc=816)
   

2. Sparck Jones, K.: Automatic classification (1976) 5.31

   5.3145585 = sum of:
     5.3145585 = sum of:
       2.0560415 = weight(author_txt:jones in 2907) [ClassicSimilarity], result of:
         2.0560415 = score(doc=2907,freq=1.0), product of:
           0.5925794 = queryWeight, product of:
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.08539477 = queryNorm
           3.469647 = fieldWeight in 2907, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.5 = fieldNorm(doc=2907)
       3.258517 = weight(author_txt:sparck in 2907) [ClassicSimilarity], result of:
         3.258517 = score(doc=2907,freq=1.0), product of:
           0.80551195 = queryWeight, product of:
             1.1659038 = boost
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.08539477 = queryNorm
           4.0452747 = fieldWeight in 2907, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.5 = fieldNorm(doc=2907)
   

3. Sparck Jones, K.: ¬The role of artificial intelligence in information retrieval (1991) 5.31

   5.3145585 = sum of:
     5.3145585 = sum of:
       2.0560415 = weight(author_txt:jones in 4810) [ClassicSimilarity], result of:
         2.0560415 = score(doc=4810,freq=1.0), product of:
           0.5925794 = queryWeight, product of:
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.08539477 = queryNorm
           3.469647 = fieldWeight in 4810, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.5 = fieldNorm(doc=4810)
       3.258517 = weight(author_txt:sparck in 4810) [ClassicSimilarity], result of:
         3.258517 = score(doc=4810,freq=1.0), product of:
           0.80551195 = queryWeight, product of:
             1.1659038 = boost
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.08539477 = queryNorm
           4.0452747 = fieldWeight in 4810, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.5 = fieldNorm(doc=4810)
   

4. Sparck Jones, K.: Automatic keyword classification for information retrieval (1971) 5.31

   5.3145585 = sum of:
     5.3145585 = sum of:
       2.0560415 = weight(author_txt:jones in 5175) [ClassicSimilarity], result of:
         2.0560415 = score(doc=5175,freq=1.0), product of:
           0.5925794 = queryWeight, product of:
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.08539477 = queryNorm
           3.469647 = fieldWeight in 5175, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.5 = fieldNorm(doc=5175)
       3.258517 = weight(author_txt:sparck in 5175) [ClassicSimilarity], result of:
         3.258517 = score(doc=5175,freq=1.0), product of:
           0.80551195 = queryWeight, product of:
             1.1659038 = boost
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.08539477 = queryNorm
           4.0452747 = fieldWeight in 5175, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.5 = fieldNorm(doc=5175)
   

5. Sparck Jones, K.: Index term weighting (1973) 5.31

   5.3145585 = sum of:
     5.3145585 = sum of:
       2.0560415 = weight(author_txt:jones in 5490) [ClassicSimilarity], result of:
         2.0560415 = score(doc=5490,freq=1.0), product of:
           0.5925794 = queryWeight, product of:
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.08539477 = queryNorm
           3.469647 = fieldWeight in 5490, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.939294 = idf(docFreq=116, maxDocs=44421)
             0.5 = fieldNorm(doc=5490)
       3.258517 = weight(author_txt:sparck in 5490) [ClassicSimilarity], result of:
         3.258517 = score(doc=5490,freq=1.0), product of:
           0.80551195 = queryWeight, product of:
             1.1659038 = boost
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.08539477 = queryNorm
           4.0452747 = fieldWeight in 5490, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.090549 = idf(docFreq=36, maxDocs=44421)
             0.5 = fieldNorm(doc=5490)
   

Similar documents (content)

1. Wozniak, J.: Jezyk hasel przedmiotowych KABA : wybrane problemy realizacji projektu (1997) 0.42

   0.41517827 = sum of:
     0.41517827 = product of:
       1.2455348 = sum of:
         0.18339796 = weight(abstract_txt:term in 4218) [ClassicSimilarity], result of:
           0.18339796 = score(doc=4218,freq=1.0), product of:
             0.24480025 = queryWeight, product of:
               1.3791782 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.037019357 = queryNorm
             0.7491739 = fieldWeight in 4218, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.15625 = fieldNorm(doc=4218)
         1.0621368 = weight(abstract_txt:specifity in 4218) [ClassicSimilarity], result of:
           1.0621368 = score(doc=4218,freq=1.0), product of:
             0.7894704 = queryWeight, product of:
               2.476751 = boost
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.037019357 = queryNorm
             1.3453789 = fieldWeight in 4218, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.15625 = fieldNorm(doc=4218)
       0.33333334 = coord(2/6)
   

2. Losee, R.M.: Comparing Boolean and probabilistic information retrieval systems across queries and disciplines (1997) 0.39

   0.39096066 = sum of:
     0.39096066 = product of:
       0.586441 = sum of:
         0.059319794 = weight(abstract_txt:retrieval in 778) [ClassicSimilarity], result of:
           0.059319794 = score(doc=778,freq=2.0), product of:
             0.1286978 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.037019357 = queryNorm
             0.46092314 = fieldWeight in 778, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.09375 = fieldNorm(doc=778)
         0.095617965 = weight(abstract_txt:application in 778) [ClassicSimilarity], result of:
           0.095617965 = score(doc=778,freq=1.0), product of:
             0.22291589 = queryWeight, product of:
               1.3160881 = boost
               4.5753803 = idf(docFreq=1243, maxDocs=44421)
               0.037019357 = queryNorm
             0.4289419 = fieldWeight in 778, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5753803 = idf(docFreq=1243, maxDocs=44421)
               0.09375 = fieldNorm(doc=778)
         0.19059275 = weight(abstract_txt:term in 778) [ClassicSimilarity], result of:
           0.19059275 = score(doc=778,freq=3.0), product of:
             0.24480025 = queryWeight, product of:
               1.3791782 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.037019357 = queryNorm
             0.77856433 = fieldWeight in 778, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.09375 = fieldNorm(doc=778)
         0.24091046 = weight(abstract_txt:statistical in 778) [ClassicSimilarity], result of:
           0.24091046 = score(doc=778,freq=2.0), product of:
             0.32759842 = queryWeight, product of:
               1.5954579 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.037019357 = queryNorm
             0.73538345 = fieldWeight in 778, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.09375 = fieldNorm(doc=778)
       0.6666667 = coord(4/6)
   

3. Lioma, C.; Ounis, I.: ¬A syntactically-based query reformulation technique for information retrieval (2008) 0.34

   0.3432777 = sum of:
     0.3432777 = product of:
       0.41193324 = sum of:
         0.06920643 = weight(abstract_txt:retrieval in 3031) [ClassicSimilarity], result of:
           0.06920643 = score(doc=3031,freq=8.0), product of:
             0.1286978 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.037019357 = queryNorm
             0.5377437 = fieldWeight in 3031, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3031)
         0.05577715 = weight(abstract_txt:application in 3031) [ClassicSimilarity], result of:
           0.05577715 = score(doc=3031,freq=1.0), product of:
             0.22291589 = queryWeight, product of:
               1.3160881 = boost
               4.5753803 = idf(docFreq=1243, maxDocs=44421)
               0.037019357 = queryNorm
             0.25021613 = fieldWeight in 3031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5753803 = idf(docFreq=1243, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3031)
         0.06418929 = weight(abstract_txt:term in 3031) [ClassicSimilarity], result of:
           0.06418929 = score(doc=3031,freq=1.0), product of:
             0.24480025 = queryWeight, product of:
               1.3791782 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.037019357 = queryNorm
             0.26221088 = fieldWeight in 3031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3031)
         0.0993705 = weight(abstract_txt:statistical in 3031) [ClassicSimilarity], result of:
           0.0993705 = score(doc=3031,freq=1.0), product of:
             0.32759842 = queryWeight, product of:
               1.5954579 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.037019357 = queryNorm
             0.3033302 = fieldWeight in 3031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3031)
         0.12338988 = weight(abstract_txt:interpretation in 3031) [ClassicSimilarity], result of:
           0.12338988 = score(doc=3031,freq=1.0), product of:
             0.3784628 = queryWeight, product of:
               1.7148496 = boost
               5.9616747 = idf(docFreq=310, maxDocs=44421)
               0.037019357 = queryNorm
             0.3260291 = fieldWeight in 3031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9616747 = idf(docFreq=310, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3031)
       0.8333333 = coord(5/6)
   

4. Losee, R.M.: Term dependence : a basis for Luhn and Zipf models (2001) 0.34

   0.33578902 = sum of:
     0.33578902 = product of:
       0.5036835 = sum of:
         0.03495452 = weight(abstract_txt:retrieval in 976) [ClassicSimilarity], result of:
           0.03495452 = score(doc=976,freq=1.0), product of:
             0.1286978 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.037019357 = queryNorm
             0.27160156 = fieldWeight in 976, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.078125 = fieldNorm(doc=976)
         0.09169898 = weight(abstract_txt:term in 976) [ClassicSimilarity], result of:
           0.09169898 = score(doc=976,freq=1.0), product of:
             0.24480025 = queryWeight, product of:
               1.3791782 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.037019357 = queryNorm
             0.37458694 = fieldWeight in 976, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.078125 = fieldNorm(doc=976)
         0.20075873 = weight(abstract_txt:statistical in 976) [ClassicSimilarity], result of:
           0.20075873 = score(doc=976,freq=2.0), product of:
             0.32759842 = queryWeight, product of:
               1.5954579 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.037019357 = queryNorm
             0.61281955 = fieldWeight in 976, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.078125 = fieldNorm(doc=976)
         0.17627124 = weight(abstract_txt:interpretation in 976) [ClassicSimilarity], result of:
           0.17627124 = score(doc=976,freq=1.0), product of:
             0.3784628 = queryWeight, product of:
               1.7148496 = boost
               5.9616747 = idf(docFreq=310, maxDocs=44421)
               0.037019357 = queryNorm
             0.46575582 = fieldWeight in 976, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9616747 = idf(docFreq=310, maxDocs=44421)
               0.078125 = fieldNorm(doc=976)
       0.6666667 = coord(4/6)
   

5. David, A.A.; Bueno, D.: User modeling and cooperative information retrieval in information retrieval systems (1999) 0.31

   0.3108995 = sum of:
     0.3108995 = product of:
       0.621799 = sum of:
         0.055927236 = weight(abstract_txt:retrieval in 5118) [ClassicSimilarity], result of:
           0.055927236 = score(doc=5118,freq=4.0), product of:
             0.1286978 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.037019357 = queryNorm
             0.4345625 = fieldWeight in 5118, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=5118)
         0.141017 = weight(abstract_txt:interpretation in 5118) [ClassicSimilarity], result of:
           0.141017 = score(doc=5118,freq=1.0), product of:
             0.3784628 = queryWeight, product of:
               1.7148496 = boost
               5.9616747 = idf(docFreq=310, maxDocs=44421)
               0.037019357 = queryNorm
             0.37260467 = fieldWeight in 5118, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9616747 = idf(docFreq=310, maxDocs=44421)
               0.0625 = fieldNorm(doc=5118)
         0.42485473 = weight(abstract_txt:specifity in 5118) [ClassicSimilarity], result of:
           0.42485473 = score(doc=5118,freq=1.0), product of:
             0.7894704 = queryWeight, product of:
               2.476751 = boost
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.037019357 = queryNorm
             0.53815156 = fieldWeight in 5118, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.0625 = fieldNorm(doc=5118)
       0.5 = coord(3/6)