Document (#30228)

Author

Tseng, Y.-H.

Title

Automatic thesaurus generation for Chinese documents

Source

Journal of the American Society for Information Science and technology. 53(2002) no.13, S.1130-1138

Year

2002

Abstract

Tseng constructs a word co-occurrence based thesaurus by means of the automatic analysis of Chinese text. Words are identified by a longest dictionary match supplemented by a key word extraction algorithm that merges back nearby tokens and accepts shorter strings of characters if they occur more often than the longest string. Single character auxiliary words are a major source of error but this can be greatly reduced with the use of a 70-character 2680 word stop list. Extracted terms with their associate document weights are sorted by decreasing frequency and the top of this list is associated using a Dice coefficient modified to account for longer documents on the weights of term pairs. Co-occurrence is not in the document as a whole but in paragraph or sentence size sections in order to reduce computation time. A window of 29 characters or 11 words was found to be sufficient. A thesaurus was produced from 25,230 Chinese news articles and judges asked to review the top 50 terms associated with each of 30 single word query terms. They determined 69% to be relevant.

Theme

Konzeption und Anwendung des Prinzips Thesaurus
Computerlinguistik

Similar documents (author)

1. Tseng, Y.-H.: Automatic cataloguing and searching for retrospective data by use of OCR text (2001) 4.55

   4.5489707 = sum of:
     4.5489707 = weight(author_txt:tseng in 5421) [ClassicSimilarity], result of:
       4.5489707 = fieldWeight in 5421, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.097941 = idf(docFreq=12, maxDocs=42740)
         0.5 = fieldNorm(doc=5421)
   

2. Tseng, Y.-H.: Keyword extraction techniques and relevance feedback (1997) 4.55

   4.5489707 = sum of:
     4.5489707 = weight(author_txt:tseng in 2831) [ClassicSimilarity], result of:
       4.5489707 = fieldWeight in 2831, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.097941 = idf(docFreq=12, maxDocs=42740)
         0.5 = fieldNorm(doc=2831)
   

3. Tseng, Y.-H.: Solving vocabulary problems with interactive query expansion (1998) 4.55

   4.5489707 = sum of:
     4.5489707 = weight(author_txt:tseng in 75) [ClassicSimilarity], result of:
       4.5489707 = fieldWeight in 75, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.097941 = idf(docFreq=12, maxDocs=42740)
         0.5 = fieldNorm(doc=75)
   

4. Tseng, Y.H.; Lin, Y.I.: Evaluation of fuzzy search, term suggestion, and term relevance feedback in an OPAC system (1998) 4.55

   4.5489707 = sum of:
     4.5489707 = weight(author_txt:tseng in 431) [ClassicSimilarity], result of:
       4.5489707 = fieldWeight in 431, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.097941 = idf(docFreq=12, maxDocs=42740)
         0.5 = fieldNorm(doc=431)
   

5. Drenth, H.; Morris, A.; Tseng, G.: Expert systems as information intermediaries (1991) 3.41

   3.411728 = sum of:
     3.411728 = weight(author_txt:tseng in 3695) [ClassicSimilarity], result of:
       3.411728 = fieldWeight in 3695, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.097941 = idf(docFreq=12, maxDocs=42740)
         0.375 = fieldNorm(doc=3695)
   

Similar documents (content)

1. Khoo, C.S.G.; Dai, D.; Loh, T.E.: Using statistical and contextual information to identify two- and three-character words in Chinese text (2002) 0.27

   0.26826146 = sum of:
     0.26826146 = product of:
       0.9580766 = sum of:
         0.03166796 = weight(abstract_txt:document in 207) [ClassicSimilarity], result of:
           0.03166796 = score(doc=207,freq=2.0), product of:
             0.08369578 = queryWeight, product of:
               1.0522338 = boost
               4.280766 = idf(docFreq=1606, maxDocs=42740)
               0.01858103 = queryNorm
             0.37836984 = fieldWeight in 207, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.280766 = idf(docFreq=1606, maxDocs=42740)
               0.0625 = fieldNorm(doc=207)
         0.056758482 = weight(abstract_txt:automatic in 207) [ClassicSimilarity], result of:
           0.056758482 = score(doc=207,freq=2.0), product of:
             0.12349348 = queryWeight, product of:
               1.278152 = boost
               5.199861 = idf(docFreq=640, maxDocs=42740)
               0.01858103 = queryNorm
             0.45960712 = fieldWeight in 207, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.199861 = idf(docFreq=640, maxDocs=42740)
               0.0625 = fieldNorm(doc=207)
         0.19443545 = weight(abstract_txt:character in 207) [ClassicSimilarity], result of:
           0.19443545 = score(doc=207,freq=6.0), product of:
             0.19458082 = queryWeight, product of:
               1.604392 = boost
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.01858103 = queryNorm
             0.99925286 = fieldWeight in 207, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.0625 = fieldNorm(doc=207)
         0.19595122 = weight(abstract_txt:characters in 207) [ClassicSimilarity], result of:
           0.19595122 = score(doc=207,freq=3.0), product of:
             0.24642897 = queryWeight, product of:
               1.8055369 = boost
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.01858103 = queryNorm
             0.7951631 = fieldWeight in 207, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.0625 = fieldNorm(doc=207)
         0.19763717 = weight(abstract_txt:words in 207) [ClassicSimilarity], result of:
           0.19763717 = score(doc=207,freq=9.0), product of:
             0.1967111 = queryWeight, product of:
               1.9756979 = boost
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.01858103 = queryNorm
             1.0047078 = fieldWeight in 207, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.0625 = fieldNorm(doc=207)
         0.18898864 = weight(abstract_txt:chinese in 207) [ClassicSimilarity], result of:
           0.18898864 = score(doc=207,freq=3.0), product of:
             0.27536833 = queryWeight, product of:
               2.3375618 = boost
               6.3398805 = idf(docFreq=204, maxDocs=42740)
               0.01858103 = queryNorm
             0.6863122 = fieldWeight in 207, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.3398805 = idf(docFreq=204, maxDocs=42740)
               0.0625 = fieldNorm(doc=207)
         0.09263769 = weight(abstract_txt:word in 207) [ClassicSimilarity], result of:
           0.09263769 = score(doc=207,freq=1.0), product of:
             0.27174944 = queryWeight, product of:
               2.6813889 = boost
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.01858103 = queryNorm
             0.34089378 = fieldWeight in 207, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.0625 = fieldNorm(doc=207)
       0.28 = coord(7/25)
   

2. Leydesdorff, L.; Zhou, P.: Co-word analysis using the Chinese character set (2008) 0.22

   0.21651533 = sum of:
     0.21651533 = product of:
       1.0825766 = sum of:
         0.1348181 = weight(abstract_txt:occurrence in 3971) [ClassicSimilarity], result of:
           0.1348181 = score(doc=3971,freq=1.0), product of:
             0.2113837 = queryWeight, product of:
               1.6722308 = boost
               6.803078 = idf(docFreq=128, maxDocs=42740)
               0.01858103 = queryNorm
             0.6377886 = fieldWeight in 3971, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.803078 = idf(docFreq=128, maxDocs=42740)
               0.09375 = fieldNorm(doc=3971)
         0.23999026 = weight(abstract_txt:characters in 3971) [ClassicSimilarity], result of:
           0.23999026 = score(doc=3971,freq=2.0), product of:
             0.24642897 = queryWeight, product of:
               1.8055369 = boost
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.01858103 = queryNorm
             0.97387195 = fieldWeight in 3971, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.09375 = fieldNorm(doc=3971)
         0.1397506 = weight(abstract_txt:words in 3971) [ClassicSimilarity], result of:
           0.1397506 = score(doc=3971,freq=2.0), product of:
             0.1967111 = queryWeight, product of:
               1.9756979 = boost
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.01858103 = queryNorm
             0.71043575 = fieldWeight in 3971, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.09375 = fieldNorm(doc=3971)
         0.32733795 = weight(abstract_txt:chinese in 3971) [ClassicSimilarity], result of:
           0.32733795 = score(doc=3971,freq=4.0), product of:
             0.27536833 = queryWeight, product of:
               2.3375618 = boost
               6.3398805 = idf(docFreq=204, maxDocs=42740)
               0.01858103 = queryNorm
             1.1887276 = fieldWeight in 3971, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.3398805 = idf(docFreq=204, maxDocs=42740)
               0.09375 = fieldNorm(doc=3971)
         0.24067979 = weight(abstract_txt:word in 3971) [ClassicSimilarity], result of:
           0.24067979 = score(doc=3971,freq=3.0), product of:
             0.27174944 = queryWeight, product of:
               2.6813889 = boost
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.01858103 = queryNorm
             0.88566804 = fieldWeight in 3971, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.09375 = fieldNorm(doc=3971)
       0.2 = coord(5/25)
   

3. Luhn, H.P.: Keyword-in-context index for technical literature (1985) 0.21

   0.21039777 = sum of:
     0.21039777 = product of:
       0.5259944 = sum of:
         0.012435214 = weight(abstract_txt:documents in 4639) [ClassicSimilarity], result of:
           0.012435214 = score(doc=4639,freq=1.0), product of:
             0.077353925 = queryWeight, product of:
               1.0115833 = boost
               4.115389 = idf(docFreq=1895, maxDocs=42740)
               0.01858103 = queryNorm
             0.16075738 = fieldWeight in 4639, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.115389 = idf(docFreq=1895, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.054490533 = weight(abstract_txt:auxiliary in 4639) [ClassicSimilarity], result of:
           0.054490533 = score(doc=4639,freq=1.0), product of:
             0.16440596 = queryWeight, product of:
               1.0428078 = boost
               8.484837 = idf(docFreq=23, maxDocs=42740)
               0.01858103 = queryNorm
             0.33143893 = fieldWeight in 4639, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.484837 = idf(docFreq=23, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.03547405 = weight(abstract_txt:automatic in 4639) [ClassicSimilarity], result of:
           0.03547405 = score(doc=4639,freq=2.0), product of:
             0.12349348 = queryWeight, product of:
               1.278152 = boost
               5.199861 = idf(docFreq=640, maxDocs=42740)
               0.01858103 = queryNorm
             0.28725445 = fieldWeight in 4639, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.199861 = idf(docFreq=640, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.025664087 = weight(abstract_txt:single in 4639) [ClassicSimilarity], result of:
           0.025664087 = score(doc=4639,freq=1.0), product of:
             0.12539034 = queryWeight, product of:
               1.2879307 = boost
               5.2396436 = idf(docFreq=615, maxDocs=42740)
               0.01858103 = queryNorm
             0.20467357 = fieldWeight in 4639, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2396436 = idf(docFreq=615, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.027908364 = weight(abstract_txt:list in 4639) [ClassicSimilarity], result of:
           0.027908364 = score(doc=4639,freq=1.0), product of:
             0.13259783 = queryWeight, product of:
               1.324429 = boost
               5.3881283 = idf(docFreq=530, maxDocs=42740)
               0.01858103 = queryNorm
             0.21047376 = fieldWeight in 4639, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3881283 = idf(docFreq=530, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.070160836 = weight(abstract_txt:character in 4639) [ClassicSimilarity], result of:
           0.070160836 = score(doc=4639,freq=2.0), product of:
             0.19458082 = queryWeight, product of:
               1.604392 = boost
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.01858103 = queryNorm
             0.36057428 = fieldWeight in 4639, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.07070781 = weight(abstract_txt:characters in 4639) [ClassicSimilarity], result of:
           0.07070781 = score(doc=4639,freq=1.0), product of:
             0.24642897 = queryWeight, product of:
               1.8055369 = boost
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.01858103 = queryNorm
             0.2869298 = fieldWeight in 4639, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.03680147 = weight(abstract_txt:thesaurus in 4639) [ClassicSimilarity], result of:
           0.03680147 = score(doc=4639,freq=1.0), product of:
             0.1825243 = queryWeight, product of:
               1.9031212 = boost
               5.161601 = idf(docFreq=665, maxDocs=42740)
               0.01858103 = queryNorm
             0.20162505 = fieldWeight in 4639, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.161601 = idf(docFreq=665, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.092068784 = weight(abstract_txt:words in 4639) [ClassicSimilarity], result of:
           0.092068784 = score(doc=4639,freq=5.0), product of:
             0.1967111 = queryWeight, product of:
               1.9756979 = boost
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.01858103 = queryNorm
             0.46804065 = fieldWeight in 4639, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
         0.10028324 = weight(abstract_txt:word in 4639) [ClassicSimilarity], result of:
           0.10028324 = score(doc=4639,freq=3.0), product of:
             0.27174944 = queryWeight, product of:
               2.6813889 = boost
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.01858103 = queryNorm
             0.36902833 = fieldWeight in 4639, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.0390625 = fieldNorm(doc=4639)
       0.4 = coord(10/25)
   

4. Lee, K.H.; Ng, M.K.M.; Lu, Q.: Text segmentation for Chinese spell checking (1999) 0.20

   0.20056717 = sum of:
     0.20056717 = product of:
       0.8356966 = sum of:
         0.079377934 = weight(abstract_txt:character in 4914) [ClassicSimilarity], result of:
           0.079377934 = score(doc=4914,freq=1.0), product of:
             0.19458082 = queryWeight, product of:
               1.604392 = boost
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.01858103 = queryNorm
             0.40794325 = fieldWeight in 4914, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.0625 = fieldNorm(doc=4914)
         0.11313249 = weight(abstract_txt:characters in 4914) [ClassicSimilarity], result of:
           0.11313249 = score(doc=4914,freq=1.0), product of:
             0.24642897 = queryWeight, product of:
               1.8055369 = boost
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.01858103 = queryNorm
             0.45908764 = fieldWeight in 4914, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3454022 = idf(docFreq=74, maxDocs=42740)
               0.0625 = fieldNorm(doc=4914)
         0.05888235 = weight(abstract_txt:thesaurus in 4914) [ClassicSimilarity], result of:
           0.05888235 = score(doc=4914,freq=1.0), product of:
             0.1825243 = queryWeight, product of:
               1.9031212 = boost
               5.161601 = idf(docFreq=665, maxDocs=42740)
               0.01858103 = queryNorm
             0.32260007 = fieldWeight in 4914, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.161601 = idf(docFreq=665, maxDocs=42740)
               0.0625 = fieldNorm(doc=4914)
         0.13175812 = weight(abstract_txt:words in 4914) [ClassicSimilarity], result of:
           0.13175812 = score(doc=4914,freq=4.0), product of:
             0.1967111 = queryWeight, product of:
               1.9756979 = boost
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.01858103 = queryNorm
             0.6698052 = fieldWeight in 4914, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.0625 = fieldNorm(doc=4914)
         0.2672703 = weight(abstract_txt:chinese in 4914) [ClassicSimilarity], result of:
           0.2672703 = score(doc=4914,freq=6.0), product of:
             0.27536833 = queryWeight, product of:
               2.3375618 = boost
               6.3398805 = idf(docFreq=204, maxDocs=42740)
               0.01858103 = queryNorm
             0.970592 = fieldWeight in 4914, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.3398805 = idf(docFreq=204, maxDocs=42740)
               0.0625 = fieldNorm(doc=4914)
         0.18527538 = weight(abstract_txt:word in 4914) [ClassicSimilarity], result of:
           0.18527538 = score(doc=4914,freq=4.0), product of:
             0.27174944 = queryWeight, product of:
               2.6813889 = boost
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.01858103 = queryNorm
             0.68178755 = fieldWeight in 4914, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.0625 = fieldNorm(doc=4914)
       0.24 = coord(6/25)
   

5. Kim, W.; Wilbur, W.J.: Corpus-based statistical screening for content-bearing terms (2001) 0.19

   0.1907336 = sum of:
     0.1907336 = product of:
       0.5960425 = sum of:
         0.033367183 = weight(abstract_txt:documents in 189) [ClassicSimilarity], result of:
           0.033367183 = score(doc=189,freq=5.0), product of:
             0.077353925 = queryWeight, product of:
               1.0115833 = boost
               4.115389 = idf(docFreq=1895, maxDocs=42740)
               0.01858103 = queryNorm
             0.43135732 = fieldWeight in 189, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.115389 = idf(docFreq=1895, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
         0.041137885 = weight(abstract_txt:document in 189) [ClassicSimilarity], result of:
           0.041137885 = score(doc=189,freq=6.0), product of:
             0.08369578 = queryWeight, product of:
               1.0522338 = boost
               4.280766 = idf(docFreq=1606, maxDocs=42740)
               0.01858103 = queryNorm
             0.49151686 = fieldWeight in 189, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.280766 = idf(docFreq=1606, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
         0.042983122 = weight(abstract_txt:terms in 189) [ClassicSimilarity], result of:
           0.042983122 = score(doc=189,freq=4.0), product of:
             0.112928025 = queryWeight, product of:
               1.496949 = boost
               4.05999 = idf(docFreq=2003, maxDocs=42740)
               0.01858103 = queryNorm
             0.38062406 = fieldWeight in 189, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.05999 = idf(docFreq=2003, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
         0.05953345 = weight(abstract_txt:character in 189) [ClassicSimilarity], result of:
           0.05953345 = score(doc=189,freq=1.0), product of:
             0.19458082 = queryWeight, product of:
               1.604392 = boost
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.01858103 = queryNorm
             0.30595744 = fieldWeight in 189, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
         0.06740905 = weight(abstract_txt:occurrence in 189) [ClassicSimilarity], result of:
           0.06740905 = score(doc=189,freq=1.0), product of:
             0.2113837 = queryWeight, product of:
               1.6722308 = boost
               6.803078 = idf(docFreq=128, maxDocs=42740)
               0.01858103 = queryNorm
             0.3188943 = fieldWeight in 189, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.803078 = idf(docFreq=128, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
         0.082210205 = weight(abstract_txt:weights in 189) [ClassicSimilarity], result of:
           0.082210205 = score(doc=189,freq=1.0), product of:
             0.24129212 = queryWeight, product of:
               1.7866194 = boost
               7.268441 = idf(docFreq=80, maxDocs=42740)
               0.01858103 = queryNorm
             0.3407082 = fieldWeight in 189, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.268441 = idf(docFreq=80, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
         0.08557941 = weight(abstract_txt:words in 189) [ClassicSimilarity], result of:
           0.08557941 = score(doc=189,freq=3.0), product of:
             0.1967111 = queryWeight, product of:
               1.9756979 = boost
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.01858103 = queryNorm
             0.43505126 = fieldWeight in 189, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.358442 = idf(docFreq=546, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
         0.18382221 = weight(abstract_txt:word in 189) [ClassicSimilarity], result of:
           0.18382221 = score(doc=189,freq=7.0), product of:
             0.27174944 = queryWeight, product of:
               2.6813889 = boost
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.01858103 = queryNorm
             0.6764401 = fieldWeight in 189, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               5.4543004 = idf(docFreq=496, maxDocs=42740)
               0.046875 = fieldNorm(doc=189)
       0.32 = coord(8/25)