Document (#26716)

Author

Mustafa, S.H.

Title

Word-oriented approximate string matching using occurrence heuristic tables : a heuristic for searching Arabic text

Source

Journal of the American Society for Information Science and Technology. 56(2005) no.14, S.1504-1511

Year

2005

Abstract

In this article, a word-oriented approximate string matching approach for searching Arabic text is presented. The distance between a pair of words is determined an the basis of aligning the two words by using occurrence heuristic tables. Two words are considered related if they have the same morphological or lexical basis. The heuristic reports an approximate match if common letters agree in order and noncommon letters represent valid affixes. The heuristic was tested by using four different alignment strategies: forward, backward, combined forward-backward, and combined backwardforward. Using the error rate and missing rate as performance indicators, the approach was successful in providing more than 80% correct matches. Within the conditions of the experiments performed, the results indicated that the combined forward-backward strategy seemed to exhibit the best performance. Most of the errors were caused by multiple-letter occurrences and by the presence of weak letters in cases in which the shared core consisted of one or two letters.

Similar documents (author)

1. Mustafa el Hadi, W.: ¬The French ISKO Chapter, origins and activities : Guest editorial (2001) 4.28

   4.2806964 = sum of:
     4.2806964 = weight(author_txt:mustafa in 177) [ClassicSimilarity], result of:
       4.2806964 = fieldWeight in 177, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.561393 = idf(docFreq=22, maxDocs=44218)
         0.5 = fieldNorm(doc=177)
   

2. Mustafa el Hadi, W.: ¬The contribution of terminology to the theoretical conception of classificatory languages and document indexing (1990) 4.28

   4.2806964 = sum of:
     4.2806964 = weight(author_txt:mustafa in 5273) [ClassicSimilarity], result of:
       4.2806964 = fieldWeight in 5273, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.561393 = idf(docFreq=22, maxDocs=44218)
         0.5 = fieldNorm(doc=5273)
   

3. Mustafa el Hadi, W.: Automatic term recognition & extraction tools : examining the new interfaces and their effective communication role in LSP discourse (1998) 4.28

   4.2806964 = sum of:
     4.2806964 = weight(author_txt:mustafa in 67) [ClassicSimilarity], result of:
       4.2806964 = fieldWeight in 67, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.561393 = idf(docFreq=22, maxDocs=44218)
         0.5 = fieldNorm(doc=67)
   

4. Mustafa el Hadi, W.: Dynamics of the linguistic paradigm in information retrieval (2000) 4.28

   4.2806964 = sum of:
     4.2806964 = weight(author_txt:mustafa in 151) [ClassicSimilarity], result of:
       4.2806964 = fieldWeight in 151, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.561393 = idf(docFreq=22, maxDocs=44218)
         0.5 = fieldNorm(doc=151)
   

5. Mustafa El Hadi, W.: Evaluating human language technology : general applications to information access and management (2002) 4.28

   4.2806964 = sum of:
     4.2806964 = weight(author_txt:mustafa in 1840) [ClassicSimilarity], result of:
       4.2806964 = fieldWeight in 1840, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.561393 = idf(docFreq=22, maxDocs=44218)
         0.5 = fieldNorm(doc=1840)
   

Similar documents (content)

1. Järvelin, A.; Keskustalo, H.; Sormunen, E.; Saastamoinen, M.; Kettunen, K.: Information retrieval from historical newspaper collections in highly inflectional languages : a query expansion approach (2016) 0.20

   0.20060523 = sum of:
     0.20060523 = product of:
       0.71644723 = sum of:
         0.020672701 = weight(abstract_txt:performance in 3223) [ClassicSimilarity], result of:
           0.020672701 = score(doc=3223,freq=1.0), product of:
             0.07143266 = queryWeight, product of:
               1.1669866 = boost
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.013219363 = queryNorm
             0.28940126 = fieldWeight in 3223, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.0625 = fieldNorm(doc=3223)
         0.05791487 = weight(abstract_txt:word in 3223) [ClassicSimilarity], result of:
           0.05791487 = score(doc=3223,freq=3.0), product of:
             0.09842792 = queryWeight, product of:
               1.3698614 = boost
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.013219363 = queryNorm
             0.5883988 = fieldWeight in 3223, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.0625 = fieldNorm(doc=3223)
         0.09212609 = weight(abstract_txt:matching in 3223) [ClassicSimilarity], result of:
           0.09212609 = score(doc=3223,freq=4.0), product of:
             0.12186165 = queryWeight, product of:
               1.5242318 = boost
               6.047913 = idf(docFreq=283, maxDocs=44218)
               0.013219363 = queryNorm
             0.75598913 = fieldWeight in 3223, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.047913 = idf(docFreq=283, maxDocs=44218)
               0.0625 = fieldNorm(doc=3223)
         0.017296892 = weight(abstract_txt:using in 3223) [ClassicSimilarity], result of:
           0.017296892 = score(doc=3223,freq=1.0), product of:
             0.0799136 = queryWeight, product of:
               1.7455924 = boost
               3.4631186 = idf(docFreq=3765, maxDocs=44218)
               0.013219363 = queryNorm
             0.21644491 = fieldWeight in 3223, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4631186 = idf(docFreq=3765, maxDocs=44218)
               0.0625 = fieldNorm(doc=3223)
         0.15383302 = weight(abstract_txt:string in 3223) [ClassicSimilarity], result of:
           0.15383302 = score(doc=3223,freq=4.0), product of:
             0.17151879 = queryWeight, product of:
               1.8083118 = boost
               7.1750984 = idf(docFreq=91, maxDocs=44218)
               0.013219363 = queryNorm
             0.8968873 = fieldWeight in 3223, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.1750984 = idf(docFreq=91, maxDocs=44218)
               0.0625 = fieldNorm(doc=3223)
         0.06775411 = weight(abstract_txt:words in 3223) [ClassicSimilarity], result of:
           0.06775411 = score(doc=3223,freq=2.0), product of:
             0.14319994 = queryWeight, product of:
               2.0236459 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.013219363 = queryNorm
             0.47314343 = fieldWeight in 3223, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.0625 = fieldNorm(doc=3223)
         0.3068495 = weight(abstract_txt:approximate in 3223) [ClassicSimilarity], result of:
           0.3068495 = score(doc=3223,freq=4.0), product of:
             0.31111863 = queryWeight, product of:
               2.9828136 = boost
               7.890225 = idf(docFreq=44, maxDocs=44218)
               0.013219363 = queryNorm
             0.9862781 = fieldWeight in 3223, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.890225 = idf(docFreq=44, maxDocs=44218)
               0.0625 = fieldNorm(doc=3223)
       0.28 = coord(7/25)
   

2. Bellaachia, A.; Amor-Tijani, G.: Proper nouns in English-Arabic cross language information retrieval (2008) 0.20

   0.19636394 = sum of:
     0.19636394 = product of:
       0.6136373 = sum of:
         0.029235613 = weight(abstract_txt:performance in 2372) [ClassicSimilarity], result of:
           0.029235613 = score(doc=2372,freq=2.0), product of:
             0.07143266 = queryWeight, product of:
               1.1669866 = boost
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.013219363 = queryNorm
             0.40927517 = fieldWeight in 2372, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
         0.065142974 = weight(abstract_txt:matching in 2372) [ClassicSimilarity], result of:
           0.065142974 = score(doc=2372,freq=2.0), product of:
             0.12186165 = queryWeight, product of:
               1.5242318 = boost
               6.047913 = idf(docFreq=283, maxDocs=44218)
               0.013219363 = queryNorm
             0.53456503 = fieldWeight in 2372, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.047913 = idf(docFreq=283, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
         0.017296892 = weight(abstract_txt:using in 2372) [ClassicSimilarity], result of:
           0.017296892 = score(doc=2372,freq=1.0), product of:
             0.0799136 = queryWeight, product of:
               1.7455924 = boost
               3.4631186 = idf(docFreq=3765, maxDocs=44218)
               0.013219363 = queryNorm
             0.21644491 = fieldWeight in 2372, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4631186 = idf(docFreq=3765, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
         0.108776376 = weight(abstract_txt:string in 2372) [ClassicSimilarity], result of:
           0.108776376 = score(doc=2372,freq=2.0), product of:
             0.17151879 = queryWeight, product of:
               1.8083118 = boost
               7.1750984 = idf(docFreq=91, maxDocs=44218)
               0.013219363 = queryNorm
             0.6341951 = fieldWeight in 2372, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.1750984 = idf(docFreq=91, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
         0.09031941 = weight(abstract_txt:arabic in 2372) [ClassicSimilarity], result of:
           0.09031941 = score(doc=2372,freq=1.0), product of:
             0.19090591 = queryWeight, product of:
               1.907775 = boost
               7.5697527 = idf(docFreq=61, maxDocs=44218)
               0.013219363 = queryNorm
             0.47310954 = fieldWeight in 2372, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5697527 = idf(docFreq=61, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
         0.0829815 = weight(abstract_txt:words in 2372) [ClassicSimilarity], result of:
           0.0829815 = score(doc=2372,freq=3.0), product of:
             0.14319994 = queryWeight, product of:
               2.0236459 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.013219363 = queryNorm
             0.57948 = fieldWeight in 2372, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
         0.066459775 = weight(abstract_txt:combined in 2372) [ClassicSimilarity], result of:
           0.066459775 = score(doc=2372,freq=1.0), product of:
             0.17811547 = queryWeight, product of:
               2.2569084 = boost
               5.9700394 = idf(docFreq=306, maxDocs=44218)
               0.013219363 = queryNorm
             0.37312746 = fieldWeight in 2372, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9700394 = idf(docFreq=306, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
         0.15342475 = weight(abstract_txt:approximate in 2372) [ClassicSimilarity], result of:
           0.15342475 = score(doc=2372,freq=1.0), product of:
             0.31111863 = queryWeight, product of:
               2.9828136 = boost
               7.890225 = idf(docFreq=44, maxDocs=44218)
               0.013219363 = queryNorm
             0.49313906 = fieldWeight in 2372, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.890225 = idf(docFreq=44, maxDocs=44218)
               0.0625 = fieldNorm(doc=2372)
       0.32 = coord(8/25)
   

3. Mansour, N.; Haraty, R.A.; Daher, W.; Houri, M.: ¬An auto-indexing method for Arabic text (2008) 0.16

   0.16444357 = sum of:
     0.16444357 = product of:
       0.51388615 = sum of:
         0.07633208 = weight(abstract_txt:morphological in 2103) [ClassicSimilarity], result of:
           0.07633208 = score(doc=2103,freq=2.0), product of:
             0.10750204 = queryWeight, product of:
               1.0123037 = boost
               8.033325 = idf(docFreq=38, maxDocs=44218)
               0.013219363 = queryNorm
             0.7100523 = fieldWeight in 2103, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.033325 = idf(docFreq=38, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
         0.019473389 = weight(abstract_txt:text in 2103) [ClassicSimilarity], result of:
           0.019473389 = score(doc=2103,freq=2.0), product of:
             0.054481577 = queryWeight, product of:
               1.0191598 = boost
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.013219363 = queryNorm
             0.3574307 = fieldWeight in 2103, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
         0.03343717 = weight(abstract_txt:word in 2103) [ClassicSimilarity], result of:
           0.03343717 = score(doc=2103,freq=1.0), product of:
             0.09842792 = queryWeight, product of:
               1.3698614 = boost
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.013219363 = queryNorm
             0.33971223 = fieldWeight in 2103, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
         0.047840696 = weight(abstract_txt:rate in 2103) [ClassicSimilarity], result of:
           0.047840696 = score(doc=2103,freq=1.0), product of:
             0.12497706 = queryWeight, product of:
               1.5435923 = boost
               6.124733 = idf(docFreq=262, maxDocs=44218)
               0.013219363 = queryNorm
             0.3827958 = fieldWeight in 2103, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.124733 = idf(docFreq=262, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
         0.065018676 = weight(abstract_txt:occurrence in 2103) [ClassicSimilarity], result of:
           0.065018676 = score(doc=2103,freq=1.0), product of:
             0.15334068 = queryWeight, product of:
               1.7098033 = boost
               6.784232 = idf(docFreq=135, maxDocs=44218)
               0.013219363 = queryNorm
             0.4240145 = fieldWeight in 2103, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.784232 = idf(docFreq=135, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
         0.017296892 = weight(abstract_txt:using in 2103) [ClassicSimilarity], result of:
           0.017296892 = score(doc=2103,freq=1.0), product of:
             0.0799136 = queryWeight, product of:
               1.7455924 = boost
               3.4631186 = idf(docFreq=3765, maxDocs=44218)
               0.013219363 = queryNorm
             0.21644491 = fieldWeight in 2103, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4631186 = idf(docFreq=3765, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
         0.12773094 = weight(abstract_txt:arabic in 2103) [ClassicSimilarity], result of:
           0.12773094 = score(doc=2103,freq=2.0), product of:
             0.19090591 = queryWeight, product of:
               1.907775 = boost
               7.5697527 = idf(docFreq=61, maxDocs=44218)
               0.013219363 = queryNorm
             0.66907793 = fieldWeight in 2103, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.5697527 = idf(docFreq=61, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
         0.12675633 = weight(abstract_txt:words in 2103) [ClassicSimilarity], result of:
           0.12675633 = score(doc=2103,freq=7.0), product of:
             0.14319994 = queryWeight, product of:
               2.0236459 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.013219363 = queryNorm
             0.8851703 = fieldWeight in 2103, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.0625 = fieldNorm(doc=2103)
       0.32 = coord(8/25)
   

4. Baeza-Yates, R.; Navarro, G.: Block addressing indices for approximate text retrieval (2000) 0.15

   0.14900619 = sum of:
     0.14900619 = product of:
       0.53216493 = sum of:
         0.033728898 = weight(abstract_txt:text in 4295) [ClassicSimilarity], result of:
           0.033728898 = score(doc=4295,freq=6.0), product of:
             0.054481577 = queryWeight, product of:
               1.0191598 = boost
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.013219363 = queryNorm
             0.6190881 = fieldWeight in 4295, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.0625 = fieldNorm(doc=4295)
         0.028370444 = weight(abstract_txt:searching in 4295) [ClassicSimilarity], result of:
           0.028370444 = score(doc=4295,freq=3.0), product of:
             0.061164908 = queryWeight, product of:
               1.079863 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.013219363 = queryNorm
             0.4638353 = fieldWeight in 4295, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.0625 = fieldNorm(doc=4295)
         0.03343717 = weight(abstract_txt:word in 4295) [ClassicSimilarity], result of:
           0.03343717 = score(doc=4295,freq=1.0), product of:
             0.09842792 = queryWeight, product of:
               1.3698614 = boost
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.013219363 = queryNorm
             0.33971223 = fieldWeight in 4295, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.0625 = fieldNorm(doc=4295)
         0.046063043 = weight(abstract_txt:matching in 4295) [ClassicSimilarity], result of:
           0.046063043 = score(doc=4295,freq=1.0), product of:
             0.12186165 = queryWeight, product of:
               1.5242318 = boost
               6.047913 = idf(docFreq=283, maxDocs=44218)
               0.013219363 = queryNorm
             0.37799457 = fieldWeight in 4295, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.047913 = idf(docFreq=283, maxDocs=44218)
               0.0625 = fieldNorm(doc=4295)
         0.07691651 = weight(abstract_txt:string in 4295) [ClassicSimilarity], result of:
           0.07691651 = score(doc=4295,freq=1.0), product of:
             0.17151879 = queryWeight, product of:
               1.8083118 = boost
               7.1750984 = idf(docFreq=91, maxDocs=44218)
               0.013219363 = queryNorm
             0.44844365 = fieldWeight in 4295, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.1750984 = idf(docFreq=91, maxDocs=44218)
               0.0625 = fieldNorm(doc=4295)
         0.04790939 = weight(abstract_txt:words in 4295) [ClassicSimilarity], result of:
           0.04790939 = score(doc=4295,freq=1.0), product of:
             0.14319994 = queryWeight, product of:
               2.0236459 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.013219363 = queryNorm
             0.33456293 = fieldWeight in 4295, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.0625 = fieldNorm(doc=4295)
         0.26573947 = weight(abstract_txt:approximate in 4295) [ClassicSimilarity], result of:
           0.26573947 = score(doc=4295,freq=3.0), product of:
             0.31111863 = queryWeight, product of:
               2.9828136 = boost
               7.890225 = idf(docFreq=44, maxDocs=44218)
               0.013219363 = queryNorm
             0.8541419 = fieldWeight in 4295, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.890225 = idf(docFreq=44, maxDocs=44218)
               0.0625 = fieldNorm(doc=4295)
       0.28 = coord(7/25)
   

5. Yang, C.C.; Li, K.W.: ¬A heuristic method based on a statistical approach for chinese text segmentation (2005) 0.14

   0.14423446 = sum of:
     0.14423446 = product of:
       0.7211723 = sum of:
         0.036431372 = weight(abstract_txt:text in 4580) [ClassicSimilarity], result of:
           0.036431372 = score(doc=4580,freq=7.0), product of:
             0.054481577 = queryWeight, product of:
               1.0191598 = boost
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.013219363 = queryNorm
             0.6686916 = fieldWeight in 4580, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.0625 = fieldNorm(doc=4580)
         0.020672701 = weight(abstract_txt:performance in 4580) [ClassicSimilarity], result of:
           0.020672701 = score(doc=4580,freq=1.0), product of:
             0.07143266 = queryWeight, product of:
               1.1669866 = boost
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.013219363 = queryNorm
             0.28940126 = fieldWeight in 4580, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.0625 = fieldNorm(doc=4580)
         0.047287297 = weight(abstract_txt:word in 4580) [ClassicSimilarity], result of:
           0.047287297 = score(doc=4580,freq=2.0), product of:
             0.09842792 = queryWeight, product of:
               1.3698614 = boost
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.013219363 = queryNorm
             0.48042563 = fieldWeight in 4580, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.0625 = fieldNorm(doc=4580)
         0.10712866 = weight(abstract_txt:words in 4580) [ClassicSimilarity], result of:
           0.10712866 = score(doc=4580,freq=5.0), product of:
             0.14319994 = queryWeight, product of:
               2.0236459 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.013219363 = queryNorm
             0.74810547 = fieldWeight in 4580, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.0625 = fieldNorm(doc=4580)
         0.50965226 = weight(abstract_txt:heuristic in 4580) [ClassicSimilarity], result of:
           0.50965226 = score(doc=4580,freq=6.0), product of:
             0.45193663 = queryWeight, product of:
               4.6411567 = boost
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.013219363 = queryNorm
             1.1277074 = fieldWeight in 4580, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.0625 = fieldNorm(doc=4580)
       0.2 = coord(5/25)