Document (#37089)

Author

Ofoghi, B.
Yearwood, J.
Ma, L.

Title

¬The impact of frame semantic annotation levels, frame-alignment techniques, and fusion methods on factoid answer processing

Source

Journal of the American Society for Information Science and Technology. 60(2009) no.2, S.247-263

Year

2009

Abstract

The impact of frame semantic enrichment of texts on the task of factoid question answering (QA) is studied in this paper. In particular, we consider different techniques for answer processing with frame semantics: the level of semantic class identification and role assignment to texts, and the fusion of frame semantic-based answer-processing approaches with other methods used in the Text REtrieval Conference (TREC). The impact of each of these aspects on the overall performance of a QA system is analyzed in this paper. The TREC 2004 and TREC 2006 factoid question sets were used for the experiments. These demonstrate that the exploitation of encapsulated frame semantics in FrameNet in a shallow semantic parsing process can enhance answer-processing performance in factoid QA systems. This improvement is dependent on the level of semantic annotation, the frame semantic alignment method, and the method of fusing frame semantic-based answer-processing models with other existing models. A more comprehensively annotated environment with all different part-of-speech target predicates provides a higher chance of correct factoid answer retrieval where semantic alignment is based on both semantic classes and a relaxed set of semantic roles for answer span identification. Our experiments on fusion techniques of frame semantic-based and entity-based answer-processing models show that merging answer lists with respect to their scores and redundancy by exploiting a fusion function leads to a more effective overall factoid QA system compared to the use of individual models.

Similar documents (content)

1. Saint-Dizier, P.; Moens, M.-F.: Knowledge and reasoning for question answering : research perspectives (2011) 0.33

   0.3266223 = sum of:
     0.3266223 = product of:
       1.1665082 = sum of:
         0.07862103 = weight(abstract_txt:question in 3746) [ClassicSimilarity], result of:
           0.07862103 = score(doc=3746,freq=5.0), product of:
             0.07210058 = queryWeight, product of:
               1.1259636 = boost
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.012310359 = queryNorm
             1.0904355 = fieldWeight in 3746, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.09375 = fieldNorm(doc=3746)
         0.013736761 = weight(abstract_txt:with in 3746) [ClassicSimilarity], result of:
           0.013736761 = score(doc=3746,freq=2.0), product of:
             0.04150775 = queryWeight, product of:
               1.3507954 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.012310359 = queryNorm
             0.33094448 = fieldWeight in 3746, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.09375 = fieldNorm(doc=3746)
         0.04933241 = weight(abstract_txt:techniques in 3746) [ClassicSimilarity], result of:
           0.04933241 = score(doc=3746,freq=2.0), product of:
             0.08210033 = queryWeight, product of:
               1.4715433 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.012310359 = queryNorm
             0.60087955 = fieldWeight in 3746, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.09375 = fieldNorm(doc=3746)
         0.089526616 = weight(abstract_txt:processing in 3746) [ClassicSimilarity], result of:
           0.089526616 = score(doc=3746,freq=1.0), product of:
             0.19390015 = queryWeight, product of:
               3.198193 = boost
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.012310359 = queryNorm
             0.46171504 = fieldWeight in 3746, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.09375 = fieldNorm(doc=3746)
         0.23259234 = weight(abstract_txt:fusion in 3746) [ClassicSimilarity], result of:
           0.23259234 = score(doc=3746,freq=1.0), product of:
             0.32011786 = queryWeight, product of:
               3.3552504 = boost
               7.750224 = idf(docFreq=51, maxDocs=44421)
               0.012310359 = queryNorm
             0.7265835 = fieldWeight in 3746, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.750224 = idf(docFreq=51, maxDocs=44421)
               0.09375 = fieldNorm(doc=3746)
         0.3284316 = weight(abstract_txt:answer in 3746) [ClassicSimilarity], result of:
           0.3284316 = score(doc=3746,freq=2.0), product of:
             0.41904476 = queryWeight, product of:
               5.758262 = boost
               5.9115076 = idf(docFreq=326, maxDocs=44421)
               0.012310359 = queryNorm
             0.7837626 = fieldWeight in 3746, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.9115076 = idf(docFreq=326, maxDocs=44421)
               0.09375 = fieldNorm(doc=3746)
         0.37426746 = weight(abstract_txt:frame in 3746) [ClassicSimilarity], result of:
           0.37426746 = score(doc=3746,freq=1.0), product of:
             0.57600796 = queryWeight, product of:
               6.7511144 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.012310359 = queryNorm
             0.6497609 = fieldWeight in 3746, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.09375 = fieldNorm(doc=3746)
       0.28 = coord(7/25)
   

2. Abacha, A.B.; Zweigenbaum, P.: MEANS: A medical question-answering system combining NLP techniques and semantic Web technologies (2015) 0.28

   0.2812201 = sum of:
     0.2812201 = product of:
       0.70305026 = sum of:
         0.029027818 = weight(abstract_txt:performance in 3677) [ClassicSimilarity], result of:
           0.029027818 = score(doc=3677,freq=2.0), product of:
             0.056870893 = queryWeight, product of:
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.012310359 = queryNorm
             0.5104161 = fieldWeight in 3677, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.041436918 = weight(abstract_txt:question in 3677) [ClassicSimilarity], result of:
           0.041436918 = score(doc=3677,freq=2.0), product of:
             0.07210058 = queryWeight, product of:
               1.1259636 = boost
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.012310359 = queryNorm
             0.5747099 = fieldWeight in 3677, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.03142946 = weight(abstract_txt:experiments in 3677) [ClassicSimilarity], result of:
           0.03142946 = score(doc=3677,freq=1.0), product of:
             0.07555242 = queryWeight, product of:
               1.1526015 = boost
               5.324741 = idf(docFreq=587, maxDocs=44421)
               0.012310359 = queryNorm
             0.4159954 = fieldWeight in 3677, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.324741 = idf(docFreq=587, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.048316143 = weight(abstract_txt:overall in 3677) [ClassicSimilarity], result of:
           0.048316143 = score(doc=3677,freq=2.0), product of:
             0.07987459 = queryWeight, product of:
               1.1851118 = boost
               5.474931 = idf(docFreq=505, maxDocs=44421)
               0.012310359 = queryNorm
             0.60490006 = fieldWeight in 3677, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.474931 = idf(docFreq=505, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.008094464 = weight(abstract_txt:with in 3677) [ClassicSimilarity], result of:
           0.008094464 = score(doc=3677,freq=1.0), product of:
             0.04150775 = queryWeight, product of:
               1.3507954 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.012310359 = queryNorm
             0.19501092 = fieldWeight in 3677, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.029069401 = weight(abstract_txt:techniques in 3677) [ClassicSimilarity], result of:
           0.029069401 = score(doc=3677,freq=1.0), product of:
             0.08210033 = queryWeight, product of:
               1.4715433 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.012310359 = queryNorm
             0.35407168 = fieldWeight in 3677, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.023737617 = weight(abstract_txt:based in 3677) [ClassicSimilarity], result of:
           0.023737617 = score(doc=3677,freq=2.0), product of:
             0.06749711 = queryWeight, product of:
               1.7225331 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.012310359 = queryNorm
             0.35168344 = fieldWeight in 3677, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.07460552 = weight(abstract_txt:processing in 3677) [ClassicSimilarity], result of:
           0.07460552 = score(doc=3677,freq=1.0), product of:
             0.19390015 = queryWeight, product of:
               3.198193 = boost
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.012310359 = queryNorm
             0.38476256 = fieldWeight in 3677, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.19353017 = weight(abstract_txt:answer in 3677) [ClassicSimilarity], result of:
           0.19353017 = score(doc=3677,freq=1.0), product of:
             0.41904476 = queryWeight, product of:
               5.758262 = boost
               5.9115076 = idf(docFreq=326, maxDocs=44421)
               0.012310359 = queryNorm
             0.46183652 = fieldWeight in 3677, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9115076 = idf(docFreq=326, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
         0.22380275 = weight(abstract_txt:semantic in 3677) [ClassicSimilarity], result of:
           0.22380275 = score(doc=3677,freq=4.0), product of:
             0.32010895 = queryWeight, product of:
               5.8113832 = boost
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.012310359 = queryNorm
             0.69914556 = fieldWeight in 3677, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.078125 = fieldNorm(doc=3677)
       0.4 = coord(10/25)
   

3. Fernández, M.; Cantador, I.; López, V.; Vallet, D.; Castells, P.; Motta, E.: Semantically enhanced Information Retrieval : an ontology-based approach (2011) 0.24

   0.24330512 = sum of:
     0.24330512 = product of:
       0.6082628 = sum of:
         0.014368038 = weight(abstract_txt:performance in 1230) [ClassicSimilarity], result of:
           0.014368038 = score(doc=1230,freq=1.0), product of:
             0.056870893 = queryWeight, product of:
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.012310359 = queryNorm
             0.25264308 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.02200062 = weight(abstract_txt:experiments in 1230) [ClassicSimilarity], result of:
           0.02200062 = score(doc=1230,freq=1.0), product of:
             0.07555242 = queryWeight, product of:
               1.1526015 = boost
               5.324741 = idf(docFreq=587, maxDocs=44421)
               0.012310359 = queryNorm
             0.29119676 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.324741 = idf(docFreq=587, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.005666125 = weight(abstract_txt:with in 1230) [ClassicSimilarity], result of:
           0.005666125 = score(doc=1230,freq=1.0), product of:
             0.04150775 = queryWeight, product of:
               1.3507954 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.012310359 = queryNorm
             0.13650765 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.02034858 = weight(abstract_txt:techniques in 1230) [ClassicSimilarity], result of:
           0.02034858 = score(doc=1230,freq=1.0), product of:
             0.08210033 = queryWeight, product of:
               1.4715433 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.012310359 = queryNorm
             0.24785016 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.028780332 = weight(abstract_txt:based in 1230) [ClassicSimilarity], result of:
           0.028780332 = score(doc=1230,freq=6.0), product of:
             0.06749711 = queryWeight, product of:
               1.7225331 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.012310359 = queryNorm
             0.42639354 = fieldWeight in 1230, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.028798949 = weight(abstract_txt:models in 1230) [ClassicSimilarity], result of:
           0.028798949 = score(doc=1230,freq=1.0), product of:
             0.113907635 = queryWeight, product of:
               2.0014577 = boost
               4.623126 = idf(docFreq=1185, maxDocs=44421)
               0.012310359 = queryNorm
             0.2528272 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.623126 = idf(docFreq=1185, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.0931531 = weight(abstract_txt:trec in 1230) [ClassicSimilarity], result of:
           0.0931531 = score(doc=1230,freq=2.0), product of:
             0.17965682 = queryWeight, product of:
               2.1768198 = boost
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.012310359 = queryNorm
             0.51850575 = fieldWeight in 1230, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.05222386 = weight(abstract_txt:processing in 1230) [ClassicSimilarity], result of:
           0.05222386 = score(doc=1230,freq=1.0), product of:
             0.19390015 = queryWeight, product of:
               3.198193 = boost
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.012310359 = queryNorm
             0.26933378 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.13567887 = weight(abstract_txt:fusion in 1230) [ClassicSimilarity], result of:
           0.13567887 = score(doc=1230,freq=1.0), product of:
             0.32011786 = queryWeight, product of:
               3.3552504 = boost
               7.750224 = idf(docFreq=51, maxDocs=44421)
               0.012310359 = queryNorm
             0.42384037 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.750224 = idf(docFreq=51, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
         0.20724425 = weight(abstract_txt:semantic in 1230) [ClassicSimilarity], result of:
           0.20724425 = score(doc=1230,freq=7.0), product of:
             0.32010895 = queryWeight, product of:
               5.8113832 = boost
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.012310359 = queryNorm
             0.64741784 = fieldWeight in 1230, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1230)
       0.4 = coord(10/25)
   

4. Green, R.: Semantic types, classes, and instantiation (2006) 0.23

   0.23251131 = sum of:
     0.23251131 = product of:
       1.1625565 = sum of:
         0.101296395 = weight(abstract_txt:framenet in 1236) [ClassicSimilarity], result of:
           0.101296395 = score(doc=1236,freq=1.0), product of:
             0.13084078 = queryWeight, product of:
               1.0725352 = boost
               9.909708 = idf(docFreq=5, maxDocs=44421)
               0.012310359 = queryNorm
             0.7741959 = fieldWeight in 1236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.909708 = idf(docFreq=5, maxDocs=44421)
               0.078125 = fieldNorm(doc=1236)
         0.034164675 = weight(abstract_txt:overall in 1236) [ClassicSimilarity], result of:
           0.034164675 = score(doc=1236,freq=1.0), product of:
             0.07987459 = queryWeight, product of:
               1.1851118 = boost
               5.474931 = idf(docFreq=505, maxDocs=44421)
               0.012310359 = queryNorm
             0.42772895 = fieldWeight in 1236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.474931 = idf(docFreq=505, maxDocs=44421)
               0.078125 = fieldNorm(doc=1236)
         0.008094464 = weight(abstract_txt:with in 1236) [ClassicSimilarity], result of:
           0.008094464 = score(doc=1236,freq=1.0), product of:
             0.04150775 = queryWeight, product of:
               1.3507954 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.012310359 = queryNorm
             0.19501092 = fieldWeight in 1236, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.078125 = fieldNorm(doc=1236)
         0.19381887 = weight(abstract_txt:semantic in 1236) [ClassicSimilarity], result of:
           0.19381887 = score(doc=1236,freq=3.0), product of:
             0.32010895 = queryWeight, product of:
               5.8113832 = boost
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.012310359 = queryNorm
             0.6054778 = fieldWeight in 1236, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.078125 = fieldNorm(doc=1236)
         0.82518214 = weight(abstract_txt:frame in 1236) [ClassicSimilarity], result of:
           0.82518214 = score(doc=1236,freq=7.0), product of:
             0.57600796 = queryWeight, product of:
               6.7511144 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.012310359 = queryNorm
             1.4325881 = fieldWeight in 1236, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.078125 = fieldNorm(doc=1236)
       0.2 = coord(5/25)
   

5. Green, R.: Facet analysis and semantic frames (2017) 0.18

   0.17904039 = sum of:
     0.17904039 = product of:
       0.8952019 = sum of:
         0.036482308 = weight(abstract_txt:semantics in 4849) [ClassicSimilarity], result of:
           0.036482308 = score(doc=4849,freq=1.0), product of:
             0.09683195 = queryWeight, product of:
               1.3048612 = boost
               6.0281444 = idf(docFreq=290, maxDocs=44421)
               0.012310359 = queryNorm
             0.37675902 = fieldWeight in 4849, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0281444 = idf(docFreq=290, maxDocs=44421)
               0.0625 = fieldNorm(doc=4849)
         0.014479819 = weight(abstract_txt:with in 4849) [ClassicSimilarity], result of:
           0.014479819 = score(doc=4849,freq=5.0), product of:
             0.04150775 = queryWeight, product of:
               1.3507954 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.012310359 = queryNorm
             0.34884614 = fieldWeight in 4849, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0625 = fieldNorm(doc=4849)
         0.032888275 = weight(abstract_txt:techniques in 4849) [ClassicSimilarity], result of:
           0.032888275 = score(doc=4849,freq=2.0), product of:
             0.08210033 = queryWeight, product of:
               1.4715433 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.012310359 = queryNorm
             0.40058637 = fieldWeight in 4849, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.0625 = fieldNorm(doc=4849)
         0.20017527 = weight(abstract_txt:semantic in 4849) [ClassicSimilarity], result of:
           0.20017527 = score(doc=4849,freq=5.0), product of:
             0.32010895 = queryWeight, product of:
               5.8113832 = boost
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.012310359 = queryNorm
             0.6253348 = fieldWeight in 4849, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.4745317 = idf(docFreq=1375, maxDocs=44421)
               0.0625 = fieldNorm(doc=4849)
         0.61117625 = weight(abstract_txt:frame in 4849) [ClassicSimilarity], result of:
           0.61117625 = score(doc=4849,freq=6.0), product of:
             0.57600796 = queryWeight, product of:
               6.7511144 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.012310359 = queryNorm
             1.0610552 = fieldWeight in 4849, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.0625 = fieldNorm(doc=4849)
       0.2 = coord(5/25)