Document (#39690)

Author

Gencosman, B.C.
Ozmutlu, H.C.
Ozmutlu, S.

Title

Character n-gram application for automatic new topic identification

Source

Information processing and management. 50(2014) no.6, S.821-856

Year

2014

Abstract

The widespread availability of the Internet and the variety of Internet-based applications have resulted in a significant increase in the amount of web pages. Determining the behaviors of search engine users has become a critical step in enhancing search engine performance. Search engine user behaviors can be determined by content-based or content-ignorant algorithms. Although many content-ignorant studies have been performed to automatically identify new topics, previous results have demonstrated that spelling errors can cause significant errors in topic shift estimates. In this study, we focused on minimizing the number of wrong estimates that were based on spelling errors. We developed a new hybrid algorithm combining character n-gram and neural network methodologies, and compared the experimental results with results from previous studies. For the FAST and Excite datasets, the proposed algorithm improved topic shift estimates by 6.987% and 2.639%, respectively. Moreover, we analyzed the performance of the character n-gram method in different aspects including the comparison with Levenshtein edit-distance method. The experimental results demonstrated that the character n-gram method outperformed to the Levensthein edit distance method in terms of topic identification.

Content

Vgl.: doi: 10.1016/j.ipm.2014.06.005.

Theme

Computerlinguistik
Suchmaschinen

Object

n-grams

Similar documents (author)

1. Spink, A.; Ozmutlu, H.C.; Ozmutlu, S.: Multitasking information seeking and searching processes (2002) 5.15

   5.153207 = sum of:
     5.153207 = weight(author_txt:ozmutlu in 1601) [ClassicSimilarity], result of:
       5.153207 = fieldWeight in 1601, product of:
         1.4142135 = tf(freq=2.0), with freq of:
           2.0 = termFreq=2.0
         9.71698 = idf(docFreq=6, maxDocs=42740)
         0.375 = fieldNorm(doc=1601)
   

2. Ozmutlu, S.; Spink, A.; Ozmutlu, H.C.: ¬A day in the life of Web searching : an exploratory study (2004) 5.15

   5.153207 = sum of:
     5.153207 = weight(author_txt:ozmutlu in 3531) [ClassicSimilarity], result of:
       5.153207 = fieldWeight in 3531, product of:
         1.4142135 = tf(freq=2.0), with freq of:
           2.0 = termFreq=2.0
         9.71698 = idf(docFreq=6, maxDocs=42740)
         0.375 = fieldNorm(doc=3531)
   

3. Ozmutlu, S.; Spink, A.; Ozmutlu, H.C.: Multimedia Web searching trends : 1997-2001 (2003) 5.15

   5.153207 = sum of:
     5.153207 = weight(author_txt:ozmutlu in 3073) [ClassicSimilarity], result of:
       5.153207 = fieldWeight in 3073, product of:
         1.4142135 = tf(freq=2.0), with freq of:
           2.0 = termFreq=2.0
         9.71698 = idf(docFreq=6, maxDocs=42740)
         0.375 = fieldNorm(doc=3073)
   

4. Ozmutlu, H.C.; Cavdur, F.; Ozmutlu, S.: Cross-validation of neural network applications for automatic new topic identification (2008) 5.15

   5.153207 = sum of:
     5.153207 = weight(author_txt:ozmutlu in 3365) [ClassicSimilarity], result of:
       5.153207 = fieldWeight in 3365, product of:
         1.4142135 = tf(freq=2.0), with freq of:
           2.0 = termFreq=2.0
         9.71698 = idf(docFreq=6, maxDocs=42740)
         0.375 = fieldNorm(doc=3365)
   

5. Ozmutlu, S.; Cosar, G.C.: Analyzing the results of automatic new topic identification (2008) 4.86

   4.85849 = sum of:
     4.85849 = weight(author_txt:ozmutlu in 4605) [ClassicSimilarity], result of:
       4.85849 = fieldWeight in 4605, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.71698 = idf(docFreq=6, maxDocs=42740)
         0.5 = fieldNorm(doc=4605)
   

Similar documents (content)

1. Ozmutlu, S.; Cosar, G.C.: Analyzing the results of automatic new topic identification (2008) 0.23

   0.23076436 = sum of:
     0.23076436 = product of:
       0.72113866 = sum of:
         0.034638427 = weight(abstract_txt:performance in 4605) [ClassicSimilarity], result of:
           0.034638427 = score(doc=4605,freq=2.0), product of:
             0.08440974 = queryWeight, product of:
               1.0713315 = boost
               4.6426997 = idf(docFreq=1118, maxDocs=42740)
               0.016970636 = queryNorm
             0.41036054 = fieldWeight in 4605, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.6426997 = idf(docFreq=1118, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
         0.017537948 = weight(abstract_txt:have in 4605) [ClassicSimilarity], result of:
           0.017537948 = score(doc=4605,freq=2.0), product of:
             0.061381392 = queryWeight, product of:
               1.1189008 = boost
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.016970636 = queryNorm
             0.2857209 = fieldWeight in 4605, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
         0.039970018 = weight(abstract_txt:search in 4605) [ClassicSimilarity], result of:
           0.039970018 = score(doc=4605,freq=5.0), product of:
             0.078323804 = queryWeight, product of:
               1.2639215 = boost
               3.6515355 = idf(docFreq=3014, maxDocs=42740)
               0.016970636 = queryNorm
             0.5103176 = fieldWeight in 4605, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.6515355 = idf(docFreq=3014, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
         0.13957682 = weight(abstract_txt:identification in 4605) [ClassicSimilarity], result of:
           0.13957682 = score(doc=4605,freq=8.0), product of:
             0.13465093 = queryWeight, product of:
               1.3531073 = boost
               5.8637977 = idf(docFreq=329, maxDocs=42740)
               0.016970636 = queryNorm
             1.0365827 = fieldWeight in 4605, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.8637977 = idf(docFreq=329, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
         0.02716865 = weight(abstract_txt:content in 4605) [ClassicSimilarity], result of:
           0.02716865 = score(doc=4605,freq=1.0), product of:
             0.10353954 = queryWeight, product of:
               1.4532031 = boost
               4.1983805 = idf(docFreq=1744, maxDocs=42740)
               0.016970636 = queryNorm
             0.26239878 = fieldWeight in 4605, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1983805 = idf(docFreq=1744, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
         0.12327019 = weight(abstract_txt:engine in 4605) [ClassicSimilarity], result of:
           0.12327019 = score(doc=4605,freq=4.0), product of:
             0.1787638 = queryWeight, product of:
               1.9094707 = boost
               5.5165615 = idf(docFreq=466, maxDocs=42740)
               0.016970636 = queryNorm
             0.6895702 = fieldWeight in 4605, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.5165615 = idf(docFreq=466, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
         0.14476849 = weight(abstract_txt:errors in 4605) [ClassicSimilarity], result of:
           0.14476849 = score(doc=4605,freq=2.0), product of:
             0.25070727 = queryWeight, product of:
               2.261292 = boost
               6.532992 = idf(docFreq=168, maxDocs=42740)
               0.016970636 = queryNorm
             0.5774403 = fieldWeight in 4605, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.532992 = idf(docFreq=168, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
         0.19420809 = weight(abstract_txt:topic in 4605) [ClassicSimilarity], result of:
           0.19420809 = score(doc=4605,freq=9.0), product of:
             0.20330021 = queryWeight, product of:
               2.3513186 = boost
               5.0948124 = idf(docFreq=711, maxDocs=42740)
               0.016970636 = queryNorm
             0.9552773 = fieldWeight in 4605, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.0948124 = idf(docFreq=711, maxDocs=42740)
               0.0625 = fieldNorm(doc=4605)
       0.32 = coord(8/25)
   

2. Willson, R.; Given, L.M.: ¬The effect of spelling and retrieval system familiarity on search behavior in online public access catalogs : a mixed methods study (2010) 0.23

   0.22936071 = sum of:
     0.22936071 = product of:
       0.71675223 = sum of:
         0.012401202 = weight(abstract_txt:have in 1043) [ClassicSimilarity], result of:
           0.012401202 = score(doc=1043,freq=1.0), product of:
             0.061381392 = queryWeight, product of:
               1.1189008 = boost
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.016970636 = queryNorm
             0.2020352 = fieldWeight in 1043, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
         0.06688263 = weight(abstract_txt:search in 1043) [ClassicSimilarity], result of:
           0.06688263 = score(doc=1043,freq=14.0), product of:
             0.078323804 = queryWeight, product of:
               1.2639215 = boost
               3.6515355 = idf(docFreq=3014, maxDocs=42740)
               0.016970636 = queryNorm
             0.8539247 = fieldWeight in 1043, product of:
               3.7416575 = tf(freq=14.0), with freq of:
                 14.0 = termFreq=14.0
               3.6515355 = idf(docFreq=3014, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
         0.10182565 = weight(abstract_txt:behaviors in 1043) [ClassicSimilarity], result of:
           0.10182565 = score(doc=1043,freq=3.0), product of:
             0.15131947 = queryWeight, product of:
               1.4344156 = boost
               6.216153 = idf(docFreq=231, maxDocs=42740)
               0.016970636 = queryNorm
             0.6729183 = fieldWeight in 1043, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.216153 = idf(docFreq=231, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
         0.02111827 = weight(abstract_txt:results in 1043) [ClassicSimilarity], result of:
           0.02111827 = score(doc=1043,freq=1.0), product of:
             0.09634134 = queryWeight, product of:
               1.6186349 = boost
               3.5072412 = idf(docFreq=3482, maxDocs=42740)
               0.016970636 = queryNorm
             0.21920258 = fieldWeight in 1043, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5072412 = idf(docFreq=3482, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
         0.21657026 = weight(abstract_txt:spelling in 1043) [ClassicSimilarity], result of:
           0.21657026 = score(doc=1043,freq=4.0), product of:
             0.22737515 = queryWeight, product of:
               1.7583247 = boost
               7.619839 = idf(docFreq=56, maxDocs=42740)
               0.016970636 = queryNorm
             0.9524799 = fieldWeight in 1043, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.619839 = idf(docFreq=56, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
         0.061635096 = weight(abstract_txt:engine in 1043) [ClassicSimilarity], result of:
           0.061635096 = score(doc=1043,freq=1.0), product of:
             0.1787638 = queryWeight, product of:
               1.9094707 = boost
               5.5165615 = idf(docFreq=466, maxDocs=42740)
               0.016970636 = queryNorm
             0.3447851 = fieldWeight in 1043, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5165615 = idf(docFreq=466, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
         0.14476849 = weight(abstract_txt:errors in 1043) [ClassicSimilarity], result of:
           0.14476849 = score(doc=1043,freq=2.0), product of:
             0.25070727 = queryWeight, product of:
               2.261292 = boost
               6.532992 = idf(docFreq=168, maxDocs=42740)
               0.016970636 = queryNorm
             0.5774403 = fieldWeight in 1043, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.532992 = idf(docFreq=168, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
         0.091550566 = weight(abstract_txt:topic in 1043) [ClassicSimilarity], result of:
           0.091550566 = score(doc=1043,freq=2.0), product of:
             0.20330021 = queryWeight, product of:
               2.3513186 = boost
               5.0948124 = idf(docFreq=711, maxDocs=42740)
               0.016970636 = queryNorm
             0.45032203 = fieldWeight in 1043, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.0948124 = idf(docFreq=711, maxDocs=42740)
               0.0625 = fieldNorm(doc=1043)
       0.32 = coord(8/25)
   

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

   0.20020722 = sum of:
     0.20020722 = product of:
       0.7150258 = sum of:
         0.034638427 = weight(abstract_txt:performance in 4373) [ClassicSimilarity], result of:
           0.034638427 = score(doc=4373,freq=2.0), product of:
             0.08440974 = queryWeight, product of:
               1.0713315 = boost
               4.6426997 = idf(docFreq=1118, maxDocs=42740)
               0.016970636 = queryNorm
             0.41036054 = fieldWeight in 4373, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.6426997 = idf(docFreq=1118, maxDocs=42740)
               0.0625 = fieldNorm(doc=4373)
         0.012130285 = weight(abstract_txt:based in 4373) [ClassicSimilarity], result of:
           0.012130285 = score(doc=4373,freq=1.0), product of:
             0.060484145 = queryWeight, product of:
               1.1106929 = boost
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.016970636 = queryNorm
             0.20055313 = fieldWeight in 4373, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.0625 = fieldNorm(doc=4373)
         0.012401202 = weight(abstract_txt:have in 4373) [ClassicSimilarity], result of:
           0.012401202 = score(doc=4373,freq=1.0), product of:
             0.061381392 = queryWeight, product of:
               1.1189008 = boost
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.016970636 = queryNorm
             0.2020352 = fieldWeight in 4373, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.0625 = fieldNorm(doc=4373)
         0.038858872 = weight(abstract_txt:experimental in 4373) [ClassicSimilarity], result of:
           0.038858872 = score(doc=4373,freq=1.0), product of:
             0.11482169 = queryWeight, product of:
               1.2495095 = boost
               5.414848 = idf(docFreq=516, maxDocs=42740)
               0.016970636 = queryNorm
             0.338428 = fieldWeight in 4373, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.414848 = idf(docFreq=516, maxDocs=42740)
               0.0625 = fieldNorm(doc=4373)
         0.029865744 = weight(abstract_txt:results in 4373) [ClassicSimilarity], result of:
           0.029865744 = score(doc=4373,freq=2.0), product of:
             0.09634134 = queryWeight, product of:
               1.6186349 = boost
               3.5072412 = idf(docFreq=3482, maxDocs=42740)
               0.016970636 = queryNorm
             0.30999926 = fieldWeight in 4373, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.5072412 = idf(docFreq=3482, maxDocs=42740)
               0.0625 = fieldNorm(doc=4373)
         0.1531383 = weight(abstract_txt:spelling in 4373) [ClassicSimilarity], result of:
           0.1531383 = score(doc=4373,freq=2.0), product of:
             0.22737515 = queryWeight, product of:
               1.7583247 = boost
               7.619839 = idf(docFreq=56, maxDocs=42740)
               0.016970636 = queryNorm
             0.673505 = fieldWeight in 4373, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.619839 = idf(docFreq=56, maxDocs=42740)
               0.0625 = fieldNorm(doc=4373)
         0.433993 = weight(abstract_txt:gram in 4373) [ClassicSimilarity], result of:
           0.433993 = score(doc=4373,freq=3.0), product of:
             0.501174 = queryWeight, product of:
               3.6917887 = boost
               7.999329 = idf(docFreq=38, maxDocs=42740)
               0.016970636 = queryNorm
             0.8659528 = fieldWeight in 4373, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.999329 = idf(docFreq=38, maxDocs=42740)
               0.0625 = fieldNorm(doc=4373)
       0.28 = coord(7/25)
   

4. Doval, Y.; Gómez-Rodríguez, C.: Comparing neural- and N-gram-based language models for word segmentation (2019) 0.20

   0.1984505 = sum of:
     0.1984505 = product of:
       0.62015784 = sum of:
         0.024493068 = weight(abstract_txt:performance in 676) [ClassicSimilarity], result of:
           0.024493068 = score(doc=676,freq=1.0), product of:
             0.08440974 = queryWeight, product of:
               1.0713315 = boost
               4.6426997 = idf(docFreq=1118, maxDocs=42740)
               0.016970636 = queryNorm
             0.29016873 = fieldWeight in 676, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6426997 = idf(docFreq=1118, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
         0.012130285 = weight(abstract_txt:based in 676) [ClassicSimilarity], result of:
           0.012130285 = score(doc=676,freq=1.0), product of:
             0.060484145 = queryWeight, product of:
               1.1106929 = boost
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.016970636 = queryNorm
             0.20055313 = fieldWeight in 676, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
         0.012401202 = weight(abstract_txt:have in 676) [ClassicSimilarity], result of:
           0.012401202 = score(doc=676,freq=1.0), product of:
             0.061381392 = queryWeight, product of:
               1.1189008 = boost
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.016970636 = queryNorm
             0.2020352 = fieldWeight in 676, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
         0.017875135 = weight(abstract_txt:search in 676) [ClassicSimilarity], result of:
           0.017875135 = score(doc=676,freq=1.0), product of:
             0.078323804 = queryWeight, product of:
               1.2639215 = boost
               3.6515355 = idf(docFreq=3014, maxDocs=42740)
               0.016970636 = queryNorm
             0.22822097 = fieldWeight in 676, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6515355 = idf(docFreq=3014, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
         0.04580789 = weight(abstract_txt:algorithm in 676) [ClassicSimilarity], result of:
           0.04580789 = score(doc=676,freq=1.0), product of:
             0.12813191 = queryWeight, product of:
               1.3199462 = boost
               5.7200913 = idf(docFreq=380, maxDocs=42740)
               0.016970636 = queryNorm
             0.3575057 = fieldWeight in 676, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7200913 = idf(docFreq=380, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
         0.02111827 = weight(abstract_txt:results in 676) [ClassicSimilarity], result of:
           0.02111827 = score(doc=676,freq=1.0), product of:
             0.09634134 = queryWeight, product of:
               1.6186349 = boost
               3.5072412 = idf(docFreq=3482, maxDocs=42740)
               0.016970636 = queryNorm
             0.21920258 = fieldWeight in 676, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5072412 = idf(docFreq=3482, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
         0.23576604 = weight(abstract_txt:character in 676) [ClassicSimilarity], result of:
           0.23576604 = score(doc=676,freq=3.0), product of:
             0.33367285 = queryWeight, product of:
               3.0123332 = boost
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.016970636 = queryNorm
             0.70657843 = fieldWeight in 676, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
         0.25056598 = weight(abstract_txt:gram in 676) [ClassicSimilarity], result of:
           0.25056598 = score(doc=676,freq=1.0), product of:
             0.501174 = queryWeight, product of:
               3.6917887 = boost
               7.999329 = idf(docFreq=38, maxDocs=42740)
               0.016970636 = queryNorm
             0.49995807 = fieldWeight in 676, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.999329 = idf(docFreq=38, maxDocs=42740)
               0.0625 = fieldNorm(doc=676)
       0.32 = coord(8/25)
   

5. Lam-Adesina, A.M.; Jones, G.J.F.: Examining and improving the effectiveness of relevance feedback for retrieval of scanned text documents (2006) 0.19

   0.19025283 = sum of:
     0.19025283 = product of:
       0.67947435 = sum of:
         0.012130285 = weight(abstract_txt:based in 2978) [ClassicSimilarity], result of:
           0.012130285 = score(doc=2978,freq=1.0), product of:
             0.060484145 = queryWeight, product of:
               1.1106929 = boost
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.016970636 = queryNorm
             0.20055313 = fieldWeight in 2978, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.0625 = fieldNorm(doc=2978)
         0.012401202 = weight(abstract_txt:have in 2978) [ClassicSimilarity], result of:
           0.012401202 = score(doc=2978,freq=1.0), product of:
             0.061381392 = queryWeight, product of:
               1.1189008 = boost
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.016970636 = queryNorm
             0.2020352 = fieldWeight in 2978, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2325633 = idf(docFreq=4583, maxDocs=42740)
               0.0625 = fieldNorm(doc=2978)
         0.038858872 = weight(abstract_txt:experimental in 2978) [ClassicSimilarity], result of:
           0.038858872 = score(doc=2978,freq=1.0), product of:
             0.11482169 = queryWeight, product of:
               1.2495095 = boost
               5.414848 = idf(docFreq=516, maxDocs=42740)
               0.016970636 = queryNorm
             0.338428 = fieldWeight in 2978, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.414848 = idf(docFreq=516, maxDocs=42740)
               0.0625 = fieldNorm(doc=2978)
         0.06663141 = weight(abstract_txt:distance in 2978) [ClassicSimilarity], result of:
           0.06663141 = score(doc=2978,freq=1.0), product of:
             0.16449389 = queryWeight, product of:
               1.4955552 = boost
               6.4811068 = idf(docFreq=177, maxDocs=42740)
               0.016970636 = queryNorm
             0.40506917 = fieldWeight in 2978, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.4811068 = idf(docFreq=177, maxDocs=42740)
               0.0625 = fieldNorm(doc=2978)
         0.1363821 = weight(abstract_txt:edit in 2978) [ClassicSimilarity], result of:
           0.1363821 = score(doc=2978,freq=1.0), product of:
             0.2651767 = queryWeight, product of:
               1.8988701 = boost
               8.228904 = idf(docFreq=30, maxDocs=42740)
               0.016970636 = queryNorm
             0.5143065 = fieldWeight in 2978, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.228904 = idf(docFreq=30, maxDocs=42740)
               0.0625 = fieldNorm(doc=2978)
         0.17730446 = weight(abstract_txt:errors in 2978) [ClassicSimilarity], result of:
           0.17730446 = score(doc=2978,freq=3.0), product of:
             0.25070727 = queryWeight, product of:
               2.261292 = boost
               6.532992 = idf(docFreq=168, maxDocs=42740)
               0.016970636 = queryNorm
             0.7072171 = fieldWeight in 2978, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.532992 = idf(docFreq=168, maxDocs=42740)
               0.0625 = fieldNorm(doc=2978)
         0.23576604 = weight(abstract_txt:character in 2978) [ClassicSimilarity], result of:
           0.23576604 = score(doc=2978,freq=3.0), product of:
             0.33367285 = queryWeight, product of:
               3.0123332 = boost
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.016970636 = queryNorm
             0.70657843 = fieldWeight in 2978, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.527092 = idf(docFreq=169, maxDocs=42740)
               0.0625 = fieldNorm(doc=2978)
       0.28 = coord(7/25)