Document (#18789)

Author

Bovey, J.D.
Robertson, S.E.

Title

¬An algorithm for weighted searching on a Boolean system

Source

Information technology: research and development. 3(1984) no.1, S.84-87

Year

1984

Theme

Retrievalalgorithmen

Similar documents (author)

1. Bovey, J.D.: ¬A graphical retrieval system (1993) 2.72

   2.7174919 = sum of:
     2.7174919 = product of:
       5.4349837 = sum of:
         5.4349837 = weight(author_txt:bovey in 3325) [ClassicSimilarity], result of:
           5.4349837 = score(doc=3325,freq=1.0), product of:
             0.87792647 = queryWeight, product of:
               1.3541102 = boost
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.06545518 = queryNorm
             6.190705 = fieldWeight in 3325, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.625 = fieldNorm(doc=3325)
       0.5 = coord(1/2)
   

2. Bovey, J.D.: Tools for preparing an online catalogue of cartoon drawings (1991) 2.72

   2.7174919 = sum of:
     2.7174919 = product of:
       5.4349837 = sum of:
         5.4349837 = weight(author_txt:bovey in 5286) [ClassicSimilarity], result of:
           5.4349837 = score(doc=5286,freq=1.0), product of:
             0.87792647 = queryWeight, product of:
               1.3541102 = boost
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.06545518 = queryNorm
             6.190705 = fieldWeight in 5286, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.625 = fieldNorm(doc=5286)
       0.5 = coord(1/2)
   

3. Bovey, J.D.: Building a thesaurus for a collection of cartoon drawings (1995) 2.72

   2.7174919 = sum of:
     2.7174919 = product of:
       5.4349837 = sum of:
         5.4349837 = weight(author_txt:bovey in 1869) [ClassicSimilarity], result of:
           5.4349837 = score(doc=1869,freq=1.0), product of:
             0.87792647 = queryWeight, product of:
               1.3541102 = boost
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.06545518 = queryNorm
             6.190705 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.625 = fieldNorm(doc=1869)
       0.5 = coord(1/2)
   

4. Bovey, J.D.: Event-based personal retrieval (1996) 2.72

   2.7174919 = sum of:
     2.7174919 = product of:
       5.4349837 = sum of:
         5.4349837 = weight(author_txt:bovey in 7704) [ClassicSimilarity], result of:
           5.4349837 = score(doc=7704,freq=1.0), product of:
             0.87792647 = queryWeight, product of:
               1.3541102 = boost
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.06545518 = queryNorm
             6.190705 = fieldWeight in 7704, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.625 = fieldNorm(doc=7704)
       0.5 = coord(1/2)
   

5. Robertson, M.A.: Windows 3.0 for the online searcher (1991) 1.09

   1.0944759 = sum of:
     1.0944759 = product of:
       2.1889517 = sum of:
         2.1889517 = weight(author_txt:robertson in 592) [ClassicSimilarity], result of:
           2.1889517 = score(doc=592,freq=1.0), product of:
             0.47879556 = queryWeight, product of:
               7.314861 = idf(docFreq=79, maxDocs=44218)
               0.06545518 = queryNorm
             4.571788 = fieldWeight in 592, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.314861 = idf(docFreq=79, maxDocs=44218)
               0.625 = fieldNorm(doc=592)
       0.5 = coord(1/2)
   

Similar documents (content)

1. Petry, F.E.; Buckles, B.P.; Prabhu, D.: Fuzzy information retrieval using genetic algorithms and relevance feedback (1993) 1.06

   1.0579795 = sum of:
     1.0579795 = product of:
       1.3224742 = sum of:
         0.04077493 = weight(abstract_txt:system in 7962) [ClassicSimilarity], result of:
           0.04077493 = score(doc=7962,freq=1.0), product of:
             0.15476613 = queryWeight, product of:
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.04589323 = queryNorm
             0.2634616 = fieldWeight in 7962, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.078125 = fieldNorm(doc=7962)
         0.19745807 = weight(abstract_txt:algorithm in 7962) [ClassicSimilarity], result of:
           0.19745807 = score(doc=7962,freq=1.0), product of:
             0.44299316 = queryWeight, product of:
               1.6918449 = boost
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.04589323 = queryNorm
             0.44573617 = fieldWeight in 7962, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.078125 = fieldNorm(doc=7962)
         0.36711118 = weight(abstract_txt:boolean in 7962) [ClassicSimilarity], result of:
           0.36711118 = score(doc=7962,freq=2.0), product of:
             0.53162104 = queryWeight, product of:
               1.8533742 = boost
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.04589323 = queryNorm
             0.6905505 = fieldWeight in 7962, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.078125 = fieldNorm(doc=7962)
         0.7171301 = weight(abstract_txt:weighted in 7962) [ClassicSimilarity], result of:
           0.7171301 = score(doc=7962,freq=4.0), product of:
             0.65936476 = queryWeight, product of:
               2.0640724 = boost
               6.9606886 = idf(docFreq=113, maxDocs=44218)
               0.04589323 = queryNorm
             1.0876076 = fieldWeight in 7962, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.9606886 = idf(docFreq=113, maxDocs=44218)
               0.078125 = fieldNorm(doc=7962)
       0.8 = coord(4/5)
   

2. Morton, D.: Refresher course : boolean and (searching or retrieval) (1993) 0.62

   0.61783886 = sum of:
     0.61783886 = product of:
       1.0297314 = sum of:
         0.06523989 = weight(abstract_txt:system in 3732) [ClassicSimilarity], result of:
           0.06523989 = score(doc=3732,freq=1.0), product of:
             0.15476613 = queryWeight, product of:
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.04589323 = queryNorm
             0.42153856 = fieldWeight in 3732, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.125 = fieldNorm(doc=3732)
         0.13381378 = weight(abstract_txt:searching in 3732) [ClassicSimilarity], result of:
           0.13381378 = score(doc=3732,freq=1.0), product of:
             0.24984328 = queryWeight, product of:
               1.270562 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.04589323 = queryNorm
             0.5355909 = fieldWeight in 3732, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.125 = fieldNorm(doc=3732)
         0.83067775 = weight(abstract_txt:boolean in 3732) [ClassicSimilarity], result of:
           0.83067775 = score(doc=3732,freq=4.0), product of:
             0.53162104 = queryWeight, product of:
               1.8533742 = boost
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.04589323 = queryNorm
             1.5625374 = fieldWeight in 3732, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.125 = fieldNorm(doc=3732)
       0.6 = coord(3/5)
   

3. Waller, W.G.; Kraft, D.H.: ¬A mathematical model of a weighted Boolean retrieval system (1979) 0.56

   0.5640053 = sum of:
     0.5640053 = product of:
       0.9400088 = sum of:
         0.06919736 = weight(abstract_txt:system in 5503) [ClassicSimilarity], result of:
           0.06919736 = score(doc=5503,freq=2.0), product of:
             0.15476613 = queryWeight, product of:
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.04589323 = queryNorm
             0.44710916 = fieldWeight in 5503, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.09375 = fieldNorm(doc=5503)
         0.4405334 = weight(abstract_txt:boolean in 5503) [ClassicSimilarity], result of:
           0.4405334 = score(doc=5503,freq=2.0), product of:
             0.53162104 = queryWeight, product of:
               1.8533742 = boost
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.04589323 = queryNorm
             0.8286606 = fieldWeight in 5503, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.09375 = fieldNorm(doc=5503)
         0.43027806 = weight(abstract_txt:weighted in 5503) [ClassicSimilarity], result of:
           0.43027806 = score(doc=5503,freq=1.0), product of:
             0.65936476 = queryWeight, product of:
               2.0640724 = boost
               6.9606886 = idf(docFreq=113, maxDocs=44218)
               0.04589323 = queryNorm
             0.6525645 = fieldWeight in 5503, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9606886 = idf(docFreq=113, maxDocs=44218)
               0.09375 = fieldNorm(doc=5503)
       0.6 = coord(3/5)
   

4. Willett, P.: Best-match text retrieval (1993) 0.55

   0.5523079 = sum of:
     0.5523079 = product of:
       0.9205131 = sum of:
         0.18924128 = weight(abstract_txt:searching in 7818) [ClassicSimilarity], result of:
           0.18924128 = score(doc=7818,freq=2.0), product of:
             0.24984328 = queryWeight, product of:
               1.270562 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.04589323 = queryNorm
             0.7574399 = fieldWeight in 7818, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.125 = fieldNorm(doc=7818)
         0.31593293 = weight(abstract_txt:algorithm in 7818) [ClassicSimilarity], result of:
           0.31593293 = score(doc=7818,freq=1.0), product of:
             0.44299316 = queryWeight, product of:
               1.6918449 = boost
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.04589323 = queryNorm
             0.71317786 = fieldWeight in 7818, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.125 = fieldNorm(doc=7818)
         0.41533887 = weight(abstract_txt:boolean in 7818) [ClassicSimilarity], result of:
           0.41533887 = score(doc=7818,freq=1.0), product of:
             0.53162104 = queryWeight, product of:
               1.8533742 = boost
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.04589323 = queryNorm
             0.7812687 = fieldWeight in 7818, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.125 = fieldNorm(doc=7818)
       0.6 = coord(3/5)
   

5. Marner, J.C.: Measuring the success of keyword search strategy in an online catalog (1993) 0.55

   0.55220914 = sum of:
     0.55220914 = product of:
       0.6902614 = sum of:
         0.04613157 = weight(abstract_txt:system in 7163) [ClassicSimilarity], result of:
           0.04613157 = score(doc=7163,freq=2.0), product of:
             0.15476613 = queryWeight, product of:
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.04589323 = queryNorm
             0.2980728 = fieldWeight in 7163, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.3723085 = idf(docFreq=4123, maxDocs=44218)
               0.0625 = fieldNorm(doc=7163)
         0.14960836 = weight(abstract_txt:searching in 7163) [ClassicSimilarity], result of:
           0.14960836 = score(doc=7163,freq=5.0), product of:
             0.24984328 = queryWeight, product of:
               1.270562 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.04589323 = queryNorm
             0.5988088 = fieldWeight in 7163, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.0625 = fieldNorm(doc=7163)
         0.20766944 = weight(abstract_txt:boolean in 7163) [ClassicSimilarity], result of:
           0.20766944 = score(doc=7163,freq=1.0), product of:
             0.53162104 = queryWeight, product of:
               1.8533742 = boost
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.04589323 = queryNorm
             0.39063436 = fieldWeight in 7163, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2501497 = idf(docFreq=231, maxDocs=44218)
               0.0625 = fieldNorm(doc=7163)
         0.28685206 = weight(abstract_txt:weighted in 7163) [ClassicSimilarity], result of:
           0.28685206 = score(doc=7163,freq=1.0), product of:
             0.65936476 = queryWeight, product of:
               2.0640724 = boost
               6.9606886 = idf(docFreq=113, maxDocs=44218)
               0.04589323 = queryNorm
             0.43504304 = fieldWeight in 7163, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9606886 = idf(docFreq=113, maxDocs=44218)
               0.0625 = fieldNorm(doc=7163)
       0.8 = coord(4/5)