Document (#5188)

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

   5.3113213 = sum of:
     5.3113213 = sum of:
       2.0544336 = weight(author_txt:jones in 817) [ClassicSimilarity], result of:
         2.0544336 = score(doc=817,freq=1.0), product of:
           0.5925071 = queryWeight, product of:
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.085440755 = queryNorm
           3.4673567 = fieldWeight in 817, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.5 = fieldNorm(doc=817)
       3.2568877 = weight(author_txt:sparck in 817) [ClassicSimilarity], result of:
         3.2568877 = score(doc=817,freq=1.0), product of:
           0.80556524 = queryWeight, product of:
             1.1660135 = boost
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.085440755 = queryNorm
           4.0429845 = fieldWeight in 817, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.5 = fieldNorm(doc=817)
   

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

   5.3113213 = sum of:
     5.3113213 = sum of:
       2.0544336 = weight(author_txt:jones in 2908) [ClassicSimilarity], result of:
         2.0544336 = score(doc=2908,freq=1.0), product of:
           0.5925071 = queryWeight, product of:
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.085440755 = queryNorm
           3.4673567 = fieldWeight in 2908, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.5 = fieldNorm(doc=2908)
       3.2568877 = weight(author_txt:sparck in 2908) [ClassicSimilarity], result of:
         3.2568877 = score(doc=2908,freq=1.0), product of:
           0.80556524 = queryWeight, product of:
             1.1660135 = boost
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.085440755 = queryNorm
           4.0429845 = fieldWeight in 2908, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.5 = fieldNorm(doc=2908)
   

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

   5.3113213 = sum of:
     5.3113213 = sum of:
       2.0544336 = weight(author_txt:jones in 4811) [ClassicSimilarity], result of:
         2.0544336 = score(doc=4811,freq=1.0), product of:
           0.5925071 = queryWeight, product of:
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.085440755 = queryNorm
           3.4673567 = fieldWeight in 4811, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.5 = fieldNorm(doc=4811)
       3.2568877 = weight(author_txt:sparck in 4811) [ClassicSimilarity], result of:
         3.2568877 = score(doc=4811,freq=1.0), product of:
           0.80556524 = queryWeight, product of:
             1.1660135 = boost
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.085440755 = queryNorm
           4.0429845 = fieldWeight in 4811, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.5 = fieldNorm(doc=4811)
   

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

   5.3113213 = sum of:
     5.3113213 = sum of:
       2.0544336 = weight(author_txt:jones in 5176) [ClassicSimilarity], result of:
         2.0544336 = score(doc=5176,freq=1.0), product of:
           0.5925071 = queryWeight, product of:
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.085440755 = queryNorm
           3.4673567 = fieldWeight in 5176, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.5 = fieldNorm(doc=5176)
       3.2568877 = weight(author_txt:sparck in 5176) [ClassicSimilarity], result of:
         3.2568877 = score(doc=5176,freq=1.0), product of:
           0.80556524 = queryWeight, product of:
             1.1660135 = boost
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.085440755 = queryNorm
           4.0429845 = fieldWeight in 5176, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.5 = fieldNorm(doc=5176)
   

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

   5.3113213 = sum of:
     5.3113213 = sum of:
       2.0544336 = weight(author_txt:jones in 5491) [ClassicSimilarity], result of:
         2.0544336 = score(doc=5491,freq=1.0), product of:
           0.5925071 = queryWeight, product of:
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.085440755 = queryNorm
           3.4673567 = fieldWeight in 5491, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9347134 = idf(docFreq=116, maxDocs=44218)
             0.5 = fieldNorm(doc=5491)
       3.2568877 = weight(author_txt:sparck in 5491) [ClassicSimilarity], result of:
         3.2568877 = score(doc=5491,freq=1.0), product of:
           0.80556524 = queryWeight, product of:
             1.1660135 = boost
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.085440755 = queryNorm
           4.0429845 = fieldWeight in 5491, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.085969 = idf(docFreq=36, maxDocs=44218)
             0.5 = fieldNorm(doc=5491)
   

Similar documents (content)

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

   0.41516215 = sum of:
     0.41516215 = product of:
       1.2454864 = sum of:
         0.18427703 = weight(abstract_txt:term in 3218) [ClassicSimilarity], result of:
           0.18427703 = score(doc=3218,freq=1.0), product of:
             0.24564105 = queryWeight, product of:
               1.3815862 = boost
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.037031624 = queryNorm
             0.75018823 = fieldWeight in 3218, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.15625 = fieldNorm(doc=3218)
         1.0612093 = weight(abstract_txt:specifity in 3218) [ClassicSimilarity], result of:
           1.0612093 = score(doc=3218,freq=1.0), product of:
             0.78920084 = queryWeight, product of:
               2.4764028 = boost
               8.6058445 = idf(docFreq=21, maxDocs=44218)
               0.037031624 = queryNorm
             1.3446631 = fieldWeight in 3218, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.6058445 = idf(docFreq=21, maxDocs=44218)
               0.15625 = fieldNorm(doc=3218)
       0.33333334 = coord(2/6)
   

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

   0.39173025 = sum of:
     0.39173025 = product of:
       0.58759534 = sum of:
         0.059293002 = weight(abstract_txt:retrieval in 7709) [ClassicSimilarity], result of:
           0.059293002 = score(doc=7709,freq=2.0), product of:
             0.12869005 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.037031624 = queryNorm
             0.4607427 = fieldWeight in 7709, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.09375 = fieldNorm(doc=7709)
         0.095753774 = weight(abstract_txt:application in 7709) [ClassicSimilarity], result of:
           0.095753774 = score(doc=7709,freq=1.0), product of:
             0.22318068 = queryWeight, product of:
               1.3169091 = boost
               4.5764427 = idf(docFreq=1236, maxDocs=44218)
               0.037031624 = queryNorm
             0.4290415 = fieldWeight in 7709, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5764427 = idf(docFreq=1236, maxDocs=44218)
               0.09375 = fieldNorm(doc=7709)
         0.19150631 = weight(abstract_txt:term in 7709) [ClassicSimilarity], result of:
           0.19150631 = score(doc=7709,freq=3.0), product of:
             0.24564105 = queryWeight, product of:
               1.3815862 = boost
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.037031624 = queryNorm
             0.7796185 = fieldWeight in 7709, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.09375 = fieldNorm(doc=7709)
         0.24104227 = weight(abstract_txt:statistical in 7709) [ClassicSimilarity], result of:
           0.24104227 = score(doc=7709,freq=2.0), product of:
             0.32779688 = queryWeight, product of:
               1.5959891 = boost
               5.5462847 = idf(docFreq=468, maxDocs=44218)
               0.037031624 = queryNorm
             0.73534036 = fieldWeight in 7709, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5462847 = idf(docFreq=468, maxDocs=44218)
               0.09375 = fieldNorm(doc=7709)
       0.6666667 = coord(4/6)
   

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

   0.34345672 = sum of:
     0.34345672 = product of:
       0.41214806 = sum of:
         0.06917517 = weight(abstract_txt:retrieval in 2031) [ClassicSimilarity], result of:
           0.06917517 = score(doc=2031,freq=8.0), product of:
             0.12869005 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.037031624 = queryNorm
             0.53753316 = fieldWeight in 2031, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.0546875 = fieldNorm(doc=2031)
         0.05585637 = weight(abstract_txt:application in 2031) [ClassicSimilarity], result of:
           0.05585637 = score(doc=2031,freq=1.0), product of:
             0.22318068 = queryWeight, product of:
               1.3169091 = boost
               4.5764427 = idf(docFreq=1236, maxDocs=44218)
               0.037031624 = queryNorm
             0.2502742 = fieldWeight in 2031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5764427 = idf(docFreq=1236, maxDocs=44218)
               0.0546875 = fieldNorm(doc=2031)
         0.06449696 = weight(abstract_txt:term in 2031) [ClassicSimilarity], result of:
           0.06449696 = score(doc=2031,freq=1.0), product of:
             0.24564105 = queryWeight, product of:
               1.3815862 = boost
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.037031624 = queryNorm
             0.26256588 = fieldWeight in 2031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.0546875 = fieldNorm(doc=2031)
         0.099424876 = weight(abstract_txt:statistical in 2031) [ClassicSimilarity], result of:
           0.099424876 = score(doc=2031,freq=1.0), product of:
             0.32779688 = queryWeight, product of:
               1.5959891 = boost
               5.5462847 = idf(docFreq=468, maxDocs=44218)
               0.037031624 = queryNorm
             0.30331245 = fieldWeight in 2031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5462847 = idf(docFreq=468, maxDocs=44218)
               0.0546875 = fieldNorm(doc=2031)
         0.12319471 = weight(abstract_txt:interpretation in 2031) [ClassicSimilarity], result of:
           0.12319471 = score(doc=2031,freq=1.0), product of:
             0.3781547 = queryWeight, product of:
               1.714203 = boost
               5.957094 = idf(docFreq=310, maxDocs=44218)
               0.037031624 = queryNorm
             0.3257786 = fieldWeight in 2031, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.957094 = idf(docFreq=310, maxDocs=44218)
               0.0546875 = fieldNorm(doc=2031)
       0.8333333 = coord(5/6)
   

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

   0.33595884 = sum of:
     0.33595884 = product of:
       0.50393826 = sum of:
         0.034938738 = weight(abstract_txt:retrieval in 6976) [ClassicSimilarity], result of:
           0.034938738 = score(doc=6976,freq=1.0), product of:
             0.12869005 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.037031624 = queryNorm
             0.27149525 = fieldWeight in 6976, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.078125 = fieldNorm(doc=6976)
         0.092138514 = weight(abstract_txt:term in 6976) [ClassicSimilarity], result of:
           0.092138514 = score(doc=6976,freq=1.0), product of:
             0.24564105 = queryWeight, product of:
               1.3815862 = boost
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.037031624 = queryNorm
             0.37509412 = fieldWeight in 6976, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.078125 = fieldNorm(doc=6976)
         0.20086858 = weight(abstract_txt:statistical in 6976) [ClassicSimilarity], result of:
           0.20086858 = score(doc=6976,freq=2.0), product of:
             0.32779688 = queryWeight, product of:
               1.5959891 = boost
               5.5462847 = idf(docFreq=468, maxDocs=44218)
               0.037031624 = queryNorm
             0.6127837 = fieldWeight in 6976, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5462847 = idf(docFreq=468, maxDocs=44218)
               0.078125 = fieldNorm(doc=6976)
         0.17599243 = weight(abstract_txt:interpretation in 6976) [ClassicSimilarity], result of:
           0.17599243 = score(doc=6976,freq=1.0), product of:
             0.3781547 = queryWeight, product of:
               1.714203 = boost
               5.957094 = idf(docFreq=310, maxDocs=44218)
               0.037031624 = queryNorm
             0.46539798 = fieldWeight in 6976, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.957094 = idf(docFreq=310, maxDocs=44218)
               0.078125 = fieldNorm(doc=6976)
       0.6666667 = coord(4/6)
   

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

   0.31058985 = sum of:
     0.31058985 = product of:
       0.6211797 = sum of:
         0.055901982 = weight(abstract_txt:retrieval in 4118) [ClassicSimilarity], result of:
           0.055901982 = score(doc=4118,freq=4.0), product of:
             0.12869005 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.037031624 = queryNorm
             0.43439242 = fieldWeight in 4118, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.0625 = fieldNorm(doc=4118)
         0.14079395 = weight(abstract_txt:interpretation in 4118) [ClassicSimilarity], result of:
           0.14079395 = score(doc=4118,freq=1.0), product of:
             0.3781547 = queryWeight, product of:
               1.714203 = boost
               5.957094 = idf(docFreq=310, maxDocs=44218)
               0.037031624 = queryNorm
             0.3723184 = fieldWeight in 4118, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.957094 = idf(docFreq=310, maxDocs=44218)
               0.0625 = fieldNorm(doc=4118)
         0.42448375 = weight(abstract_txt:specifity in 4118) [ClassicSimilarity], result of:
           0.42448375 = score(doc=4118,freq=1.0), product of:
             0.78920084 = queryWeight, product of:
               2.4764028 = boost
               8.6058445 = idf(docFreq=21, maxDocs=44218)
               0.037031624 = queryNorm
             0.5378653 = fieldWeight in 4118, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.6058445 = idf(docFreq=21, maxDocs=44218)
               0.0625 = fieldNorm(doc=4118)
       0.5 = coord(3/6)