Document (#5491)

Author

Yu, C.T.
Salton, G.

Title

Precision weighting : an effective automatic indexing method

Source

Journal of the Association for Computing Machinery. 23(1976), S.76-88

Year

1976

Theme

Automatisches Indexieren

Similar documents (author)

1. Salton, G.: Another look at automatic text-retrieval systems (1986) 4.87

   4.8655405 = sum of:
     4.8655405 = weight(author_txt:salton in 1356) [ClassicSimilarity], result of:
       4.8655405 = fieldWeight in 1356, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.7848644 = idf(docFreq=49, maxDocs=44218)
         0.625 = fieldNorm(doc=1356)
   

2. Salton, G.: ¬A new comparison between conventional indexing (MEDLARS) and automatic text processing (SMART) (1972) 4.87

   4.8655405 = sum of:
     4.8655405 = weight(author_txt:salton in 2325) [ClassicSimilarity], result of:
       4.8655405 = fieldWeight in 2325, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.7848644 = idf(docFreq=49, maxDocs=44218)
         0.625 = fieldNorm(doc=2325)
   

3. Salton, G.: Future prospects for text-based information retrieval (1990) 4.87

   4.8655405 = sum of:
     4.8655405 = weight(author_txt:salton in 2327) [ClassicSimilarity], result of:
       4.8655405 = fieldWeight in 2327, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.7848644 = idf(docFreq=49, maxDocs=44218)
         0.625 = fieldNorm(doc=2327)
   

4. Salton, G.: Fast document classification in automatic information retrieval (1978) 4.87

   4.8655405 = sum of:
     4.8655405 = weight(author_txt:salton in 2331) [ClassicSimilarity], result of:
       4.8655405 = fieldWeight in 2331, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.7848644 = idf(docFreq=49, maxDocs=44218)
         0.625 = fieldNorm(doc=2331)
   

5. Salton, G.: Expert systems and information retrieval (1987) 4.87

   4.8655405 = sum of:
     4.8655405 = weight(author_txt:salton in 2837) [ClassicSimilarity], result of:
       4.8655405 = fieldWeight in 2837, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.7848644 = idf(docFreq=49, maxDocs=44218)
         0.625 = fieldNorm(doc=2837)
   

Similar documents (content)

1. Lioma, C.; Ounis, I.: ¬A syntactically-based query reformulation technique for information retrieval (2008) 1.00

   0.99594915 = sum of:
     0.99594915 = sum of:
       0.123079866 = weight(abstract_txt:indexing in 2031) [ClassicSimilarity], result of:
         0.123079866 = score(doc=2031,freq=4.0), product of:
           0.25871456 = queryWeight, product of:
             4.3495874 = idf(docFreq=1551, maxDocs=44218)
             0.059480254 = queryNorm
           0.47573614 = fieldWeight in 2031, product of:
             2.0 = tf(freq=4.0), with freq of:
               4.0 = termFreq=4.0
             4.3495874 = idf(docFreq=1551, maxDocs=44218)
             0.0546875 = fieldNorm(doc=2031)
       0.06819073 = weight(abstract_txt:method in 2031) [ClassicSimilarity], result of:
         0.06819073 = score(doc=2031,freq=1.0), product of:
           0.277034 = queryWeight, product of:
             1.0347992 = boost
             4.50095 = idf(docFreq=1333, maxDocs=44218)
             0.059480254 = queryNorm
           0.2461457 = fieldWeight in 2031, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             4.50095 = idf(docFreq=1333, maxDocs=44218)
             0.0546875 = fieldNorm(doc=2031)
       0.084592514 = weight(abstract_txt:effective in 2031) [ClassicSimilarity], result of:
         0.084592514 = score(doc=2031,freq=1.0), product of:
           0.31984347 = queryWeight, product of:
             1.111881 = boost
             4.8362236 = idf(docFreq=953, maxDocs=44218)
             0.059480254 = queryNorm
           0.26448098 = fieldWeight in 2031, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             4.8362236 = idf(docFreq=953, maxDocs=44218)
             0.0546875 = fieldNorm(doc=2031)
       0.23453322 = weight(abstract_txt:automatic in 2031) [ClassicSimilarity], result of:
         0.23453322 = score(doc=2031,freq=5.0), product of:
           0.36914393 = queryWeight, product of:
             1.1945035 = boost
             5.1955976 = idf(docFreq=665, maxDocs=44218)
             0.059480254 = queryNorm
           0.63534355 = fieldWeight in 2031, product of:
             2.236068 = tf(freq=5.0), with freq of:
               5.0 = termFreq=5.0
             5.1955976 = idf(docFreq=665, maxDocs=44218)
             0.0546875 = fieldNorm(doc=2031)
       0.12614025 = weight(abstract_txt:precision in 2031) [ClassicSimilarity], result of:
         0.12614025 = score(doc=2031,freq=1.0), product of:
           0.41746363 = queryWeight, product of:
             1.2702783 = boost
             5.5251865 = idf(docFreq=478, maxDocs=44218)
             0.059480254 = queryNorm
           0.30215865 = fieldWeight in 2031, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             5.5251865 = idf(docFreq=478, maxDocs=44218)
             0.0546875 = fieldNorm(doc=2031)
       0.35941255 = weight(abstract_txt:weighting in 2031) [ClassicSimilarity], result of:
         0.35941255 = score(doc=2031,freq=2.0), product of:
           0.6659399 = queryWeight, product of:
             1.6043794 = boost
             6.9783883 = idf(docFreq=111, maxDocs=44218)
             0.059480254 = queryNorm
           0.5397072 = fieldWeight in 2031, product of:
             1.4142135 = tf(freq=2.0), with freq of:
               2.0 = termFreq=2.0
             6.9783883 = idf(docFreq=111, maxDocs=44218)
             0.0546875 = fieldNorm(doc=2031)
   

2. Crouch, C.J.; Crouch, D.B.; Chen, Q.; Holtz, S.J.: Improving the retrieval effectiveness of very short queries (2002) 0.76

   0.75759184 = sum of:
     0.75759184 = product of:
       0.90911025 = sum of:
         0.07793226 = weight(abstract_txt:method in 2572) [ClassicSimilarity], result of:
           0.07793226 = score(doc=2572,freq=1.0), product of:
             0.277034 = queryWeight, product of:
               1.0347992 = boost
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.059480254 = queryNorm
             0.28130937 = fieldWeight in 2572, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.0625 = fieldNorm(doc=2572)
         0.09667716 = weight(abstract_txt:effective in 2572) [ClassicSimilarity], result of:
           0.09667716 = score(doc=2572,freq=1.0), product of:
             0.31984347 = queryWeight, product of:
               1.111881 = boost
               4.8362236 = idf(docFreq=953, maxDocs=44218)
               0.059480254 = queryNorm
             0.30226398 = fieldWeight in 2572, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8362236 = idf(docFreq=953, maxDocs=44218)
               0.0625 = fieldNorm(doc=2572)
         0.11987021 = weight(abstract_txt:automatic in 2572) [ClassicSimilarity], result of:
           0.11987021 = score(doc=2572,freq=1.0), product of:
             0.36914393 = queryWeight, product of:
               1.1945035 = boost
               5.1955976 = idf(docFreq=665, maxDocs=44218)
               0.059480254 = queryNorm
             0.32472485 = fieldWeight in 2572, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1955976 = idf(docFreq=665, maxDocs=44218)
               0.0625 = fieldNorm(doc=2572)
         0.20387341 = weight(abstract_txt:precision in 2572) [ClassicSimilarity], result of:
           0.20387341 = score(doc=2572,freq=2.0), product of:
             0.41746363 = queryWeight, product of:
               1.2702783 = boost
               5.5251865 = idf(docFreq=478, maxDocs=44218)
               0.059480254 = queryNorm
             0.4883621 = fieldWeight in 2572, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5251865 = idf(docFreq=478, maxDocs=44218)
               0.0625 = fieldNorm(doc=2572)
         0.41075718 = weight(abstract_txt:weighting in 2572) [ClassicSimilarity], result of:
           0.41075718 = score(doc=2572,freq=2.0), product of:
             0.6659399 = queryWeight, product of:
               1.6043794 = boost
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.059480254 = queryNorm
             0.6168082 = fieldWeight in 2572, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.0625 = fieldNorm(doc=2572)
       0.8333333 = coord(5/6)
   

3. Faraj, N.: Analyse d'une methode d'indexation automatique basée sur une analyse syntaxique de texte (1996) 0.74

   0.7447774 = sum of:
     0.7447774 = product of:
       1.117166 = sum of:
         0.1406627 = weight(abstract_txt:indexing in 685) [ClassicSimilarity], result of:
           0.1406627 = score(doc=685,freq=1.0), product of:
             0.25871456 = queryWeight, product of:
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.059480254 = queryNorm
             0.54369843 = fieldWeight in 685, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.125 = fieldNorm(doc=685)
         0.15586452 = weight(abstract_txt:method in 685) [ClassicSimilarity], result of:
           0.15586452 = score(doc=685,freq=1.0), product of:
             0.277034 = queryWeight, product of:
               1.0347992 = boost
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.059480254 = queryNorm
             0.56261873 = fieldWeight in 685, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.125 = fieldNorm(doc=685)
         0.23974042 = weight(abstract_txt:automatic in 685) [ClassicSimilarity], result of:
           0.23974042 = score(doc=685,freq=1.0), product of:
             0.36914393 = queryWeight, product of:
               1.1945035 = boost
               5.1955976 = idf(docFreq=665, maxDocs=44218)
               0.059480254 = queryNorm
             0.6494497 = fieldWeight in 685, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1955976 = idf(docFreq=665, maxDocs=44218)
               0.125 = fieldNorm(doc=685)
         0.5808984 = weight(abstract_txt:weighting in 685) [ClassicSimilarity], result of:
           0.5808984 = score(doc=685,freq=1.0), product of:
             0.6659399 = queryWeight, product of:
               1.6043794 = boost
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.059480254 = queryNorm
             0.87229854 = fieldWeight in 685, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.125 = fieldNorm(doc=685)
       0.6666667 = coord(4/6)
   

4. Lu, K.; Mao, J.; Li, G.: Toward effective automated weighted subject indexing : a comparison of different approaches in different environments (2018) 0.66

   0.66217726 = sum of:
     0.66217726 = product of:
       0.99326587 = sum of:
         0.1406627 = weight(abstract_txt:indexing in 4292) [ClassicSimilarity], result of:
           0.1406627 = score(doc=4292,freq=4.0), product of:
             0.25871456 = queryWeight, product of:
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.059480254 = queryNorm
             0.54369843 = fieldWeight in 4292, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.0625 = fieldNorm(doc=4292)
         0.13498263 = weight(abstract_txt:method in 4292) [ClassicSimilarity], result of:
           0.13498263 = score(doc=4292,freq=3.0), product of:
             0.277034 = queryWeight, product of:
               1.0347992 = boost
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.059480254 = queryNorm
             0.4872421 = fieldWeight in 4292, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.0625 = fieldNorm(doc=4292)
         0.13672215 = weight(abstract_txt:effective in 4292) [ClassicSimilarity], result of:
           0.13672215 = score(doc=4292,freq=2.0), product of:
             0.31984347 = queryWeight, product of:
               1.111881 = boost
               4.8362236 = idf(docFreq=953, maxDocs=44218)
               0.059480254 = queryNorm
             0.4274658 = fieldWeight in 4292, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.8362236 = idf(docFreq=953, maxDocs=44218)
               0.0625 = fieldNorm(doc=4292)
         0.5808984 = weight(abstract_txt:weighting in 4292) [ClassicSimilarity], result of:
           0.5808984 = score(doc=4292,freq=4.0), product of:
             0.6659399 = queryWeight, product of:
               1.6043794 = boost
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.059480254 = queryNorm
             0.87229854 = fieldWeight in 4292, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.0625 = fieldNorm(doc=4292)
       0.6666667 = coord(4/6)
   

5. Karisani, P.; Rahgozar, M.; Oroumchian, F.: Transforming LSA space dimensions into a rubric for an automatic assessment and feedback system (2016) 0.62

   0.621619 = sum of:
     0.621619 = product of:
       0.9324284 = sum of:
         0.13498263 = weight(abstract_txt:method in 2970) [ClassicSimilarity], result of:
           0.13498263 = score(doc=2970,freq=3.0), product of:
             0.277034 = queryWeight, product of:
               1.0347992 = boost
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.059480254 = queryNorm
             0.4872421 = fieldWeight in 2970, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.0625 = fieldNorm(doc=2970)
         0.09667716 = weight(abstract_txt:effective in 2970) [ClassicSimilarity], result of:
           0.09667716 = score(doc=2970,freq=1.0), product of:
             0.31984347 = queryWeight, product of:
               1.111881 = boost
               4.8362236 = idf(docFreq=953, maxDocs=44218)
               0.059480254 = queryNorm
             0.30226398 = fieldWeight in 2970, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8362236 = idf(docFreq=953, maxDocs=44218)
               0.0625 = fieldNorm(doc=2970)
         0.11987021 = weight(abstract_txt:automatic in 2970) [ClassicSimilarity], result of:
           0.11987021 = score(doc=2970,freq=1.0), product of:
             0.36914393 = queryWeight, product of:
               1.1945035 = boost
               5.1955976 = idf(docFreq=665, maxDocs=44218)
               0.059480254 = queryNorm
             0.32472485 = fieldWeight in 2970, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1955976 = idf(docFreq=665, maxDocs=44218)
               0.0625 = fieldNorm(doc=2970)
         0.5808984 = weight(abstract_txt:weighting in 2970) [ClassicSimilarity], result of:
           0.5808984 = score(doc=2970,freq=4.0), product of:
             0.6659399 = queryWeight, product of:
               1.6043794 = boost
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.059480254 = queryNorm
             0.87229854 = fieldWeight in 2970, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.9783883 = idf(docFreq=111, maxDocs=44218)
               0.0625 = fieldNorm(doc=2970)
       0.6666667 = coord(4/6)