Document (#38843)

Author
Xinglin, L.
Title
Automatic summarization method based on compound word recognition
Source
Journal of computational information systems (JCIS). 11(2015), no.6, S.2257- 2268
Year
2015
Abstract
After analyzing main methods of automatic summarization today, we find they all ignore the weight of unknown words in the sentence. In order to overcome this problem, a method for automatic summarization based on compound word recognition is proposed. According to this method, the compound word in the text was identified and the segmentation word was corrected at first. Then, keyword set was extracted from Chinese documents and the sentence weights were calculated according to the weights of the keyword set. Because the weight of compound words was calculated by different weight calculation formula, the corresponding total weight of each sentence will be determined. Finally, sentences with higher weight which will be outputted to make up the summarization sentences by original order were selected by percentage. Experiments were conducted on HIT IR-lab Text Summarization Corpus, the results show that the precision can be achieved 76.51% by the proposed method, and we can conclude that the method is applicable for automatic summarization and the effect is good.
Content
Vgl.: http://www.jofcis.com/publishedpapers/2015_11_6_2257_2268.pdf.
Theme
Computerlinguistik

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) 0.29
    0.2879651 = sum of:
      0.2879651 = product of:
        0.7199127 = sum of:
          0.045859024 = weight(abstract_txt:formula in 207) [ClassicSimilarity], result of:
            0.045859024 = score(doc=207,freq=1.0), product of:
              0.09651423 = queryWeight, product of:
                1.0441684 = boost
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.012158147 = queryNorm
              0.47515297 = fieldWeight in 207, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.0625 = fieldNorm(doc=207)
          0.12725484 = weight(abstract_txt:segmentation in 207) [ClassicSimilarity], result of:
            0.12725484 = score(doc=207,freq=6.0), product of:
              0.10488352 = queryWeight, product of:
                1.0885001 = boost
                7.925221 = idf(docFreq=41, maxDocs=42740)
                0.012158147 = queryNorm
              1.2132968 = fieldWeight in 207, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                7.925221 = idf(docFreq=41, maxDocs=42740)
                0.0625 = fieldNorm(doc=207)
          0.013866877 = weight(abstract_txt:text in 207) [ClassicSimilarity], result of:
            0.013866877 = score(doc=207,freq=1.0), product of:
              0.05478192 = queryWeight, product of:
                1.1125216 = boost
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.012158147 = queryNorm
              0.2531287 = fieldWeight in 207, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.0625 = fieldNorm(doc=207)
          0.09634548 = weight(abstract_txt:words in 207) [ClassicSimilarity], result of:
            0.09634548 = score(doc=207,freq=9.0), product of:
              0.095894024 = queryWeight, product of:
                1.4719248 = boost
                5.358442 = idf(docFreq=546, maxDocs=42740)
                0.012158147 = 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)
          0.03151765 = weight(abstract_txt:were in 207) [ClassicSimilarity], result of:
            0.03151765 = score(doc=207,freq=4.0), product of:
              0.06829116 = queryWeight, product of:
                1.52131 = boost
                3.69215 = idf(docFreq=2894, maxDocs=42740)
                0.012158147 = queryNorm
              0.46151876 = fieldWeight in 207, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.69215 = idf(docFreq=2894, maxDocs=42740)
                0.0625 = fieldNorm(doc=207)
          0.07157915 = weight(abstract_txt:sentences in 207) [ClassicSimilarity], result of:
            0.07157915 = score(doc=207,freq=1.0), product of:
              0.1636223 = queryWeight, product of:
                1.9226981 = boost
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.012158147 = queryNorm
              0.43746573 = fieldWeight in 207, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.0625 = fieldNorm(doc=207)
          0.0809827 = weight(abstract_txt:calculated in 207) [ClassicSimilarity], result of:
            0.0809827 = score(doc=207,freq=1.0), product of:
              0.1776559 = queryWeight, product of:
                2.0034554 = boost
                7.2934427 = idf(docFreq=78, maxDocs=42740)
                0.012158147 = queryNorm
              0.45584017 = fieldWeight in 207, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2934427 = idf(docFreq=78, maxDocs=42740)
                0.0625 = fieldNorm(doc=207)
          0.101760544 = weight(abstract_txt:sentence in 207) [ClassicSimilarity], result of:
            0.101760544 = score(doc=207,freq=1.0), product of:
              0.2368108 = queryWeight, product of:
                2.8329325 = boost
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.012158147 = queryNorm
              0.4297124 = fieldWeight in 207, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.0625 = fieldNorm(doc=207)
          0.083007 = weight(abstract_txt:automatic in 207) [ClassicSimilarity], result of:
            0.083007 = score(doc=207,freq=2.0), product of:
              0.18060425 = queryWeight, product of:
                2.8567276 = boost
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.012158147 = 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)
          0.06773945 = weight(abstract_txt:word in 207) [ClassicSimilarity], result of:
            0.06773945 = score(doc=207,freq=1.0), product of:
              0.19871132 = queryWeight, product of:
                2.996513 = boost
                5.4543004 = idf(docFreq=496, maxDocs=42740)
                0.012158147 = 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)
        0.4 = coord(10/25)
    
  2. Yang, C.C.; Li, K.W.: ¬A heuristic method based on a statistical approach for chinese text segmentation (2005) 0.28
    0.28143308 = sum of:
      0.28143308 = product of:
        0.78175855 = sum of:
          0.06977082 = weight(abstract_txt:unknown in 581) [ClassicSimilarity], result of:
            0.06977082 = score(doc=581,freq=3.0), product of:
              0.088521816 = queryWeight, product of:
                7.280864 = idf(docFreq=79, maxDocs=42740)
                0.012158147 = queryNorm
              0.7881766 = fieldWeight in 581, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.280864 = idf(docFreq=79, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.1558547 = weight(abstract_txt:segmentation in 581) [ClassicSimilarity], result of:
            0.1558547 = score(doc=581,freq=9.0), product of:
              0.10488352 = queryWeight, product of:
                1.0885001 = boost
                7.925221 = idf(docFreq=41, maxDocs=42740)
                0.012158147 = queryNorm
              1.485979 = fieldWeight in 581, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                7.925221 = idf(docFreq=41, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.036688305 = weight(abstract_txt:text in 581) [ClassicSimilarity], result of:
            0.036688305 = score(doc=581,freq=7.0), product of:
              0.05478192 = queryWeight, product of:
                1.1125216 = boost
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.012158147 = queryNorm
              0.6697156 = fieldWeight in 581, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.046654128 = weight(abstract_txt:proposed in 581) [ClassicSimilarity], result of:
            0.046654128 = score(doc=581,freq=5.0), product of:
              0.0719319 = queryWeight, product of:
                1.2748251 = boost
                4.640914 = idf(docFreq=1120, maxDocs=42740)
                0.012158147 = queryNorm
              0.64858747 = fieldWeight in 581, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.640914 = idf(docFreq=1120, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.071811676 = weight(abstract_txt:words in 581) [ClassicSimilarity], result of:
            0.071811676 = score(doc=581,freq=5.0), product of:
              0.095894024 = queryWeight, product of:
                1.4719248 = boost
                5.358442 = idf(docFreq=546, maxDocs=42740)
                0.012158147 = queryNorm
              0.748865 = fieldWeight in 581, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.358442 = idf(docFreq=546, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.101760544 = weight(abstract_txt:sentence in 581) [ClassicSimilarity], result of:
            0.101760544 = score(doc=581,freq=1.0), product of:
              0.2368108 = queryWeight, product of:
                2.8329325 = boost
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.012158147 = queryNorm
              0.4297124 = fieldWeight in 581, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.058694813 = weight(abstract_txt:automatic in 581) [ClassicSimilarity], result of:
            0.058694813 = score(doc=581,freq=1.0), product of:
              0.18060425 = queryWeight, product of:
                2.8567276 = boost
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.012158147 = queryNorm
              0.32499132 = fieldWeight in 581, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.095798045 = weight(abstract_txt:word in 581) [ClassicSimilarity], result of:
            0.095798045 = score(doc=581,freq=2.0), product of:
              0.19871132 = queryWeight, product of:
                2.996513 = boost
                5.4543004 = idf(docFreq=496, maxDocs=42740)
                0.012158147 = queryNorm
              0.48209658 = fieldWeight in 581, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4543004 = idf(docFreq=496, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
          0.14472556 = weight(abstract_txt:method in 581) [ClassicSimilarity], result of:
            0.14472556 = score(doc=581,freq=9.0), product of:
              0.17070548 = queryWeight, product of:
                3.1051571 = boost
                4.5216455 = idf(docFreq=1262, maxDocs=42740)
                0.012158147 = queryNorm
              0.84780854 = fieldWeight in 581, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                4.5216455 = idf(docFreq=1262, maxDocs=42740)
                0.0625 = fieldNorm(doc=581)
        0.36 = coord(9/25)
    
  3. Ko, Y.; Park, J.; Seo, J.: Improving text categorization using the importance of sentences (2004) 0.27
    0.2736205 = sum of:
      0.2736205 = product of:
        0.76005685 = sum of:
          0.031007279 = weight(abstract_txt:text in 3558) [ClassicSimilarity], result of:
            0.031007279 = score(doc=3558,freq=5.0), product of:
              0.05478192 = queryWeight, product of:
                1.1125216 = boost
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.012158147 = queryNorm
              0.566013 = fieldWeight in 3558, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.0185956 = weight(abstract_txt:order in 3558) [ClassicSimilarity], result of:
            0.0185956 = score(doc=3558,freq=1.0), product of:
              0.066618 = queryWeight, product of:
                1.2268336 = boost
                4.466204 = idf(docFreq=1334, maxDocs=42740)
                0.012158147 = queryNorm
              0.27913776 = fieldWeight in 3558, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.466204 = idf(docFreq=1334, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.03042312 = weight(abstract_txt:according in 3558) [ClassicSimilarity], result of:
            0.03042312 = score(doc=3558,freq=1.0), product of:
              0.09249551 = queryWeight, product of:
                1.4456067 = boost
                5.262633 = idf(docFreq=601, maxDocs=42740)
                0.012158147 = queryNorm
              0.32891455 = fieldWeight in 3558, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.262633 = idf(docFreq=601, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.1431583 = weight(abstract_txt:sentences in 3558) [ClassicSimilarity], result of:
            0.1431583 = score(doc=3558,freq=4.0), product of:
              0.1636223 = queryWeight, product of:
                1.9226981 = boost
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.012158147 = queryNorm
              0.87493145 = fieldWeight in 3558, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.080152735 = weight(abstract_txt:weights in 3558) [ClassicSimilarity], result of:
            0.080152735 = score(doc=3558,freq=1.0), product of:
              0.17644 = queryWeight, product of:
                1.9965876 = boost
                7.268441 = idf(docFreq=80, maxDocs=42740)
                0.012158147 = queryNorm
              0.45427758 = fieldWeight in 3558, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.268441 = idf(docFreq=80, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.101760544 = weight(abstract_txt:sentence in 3558) [ClassicSimilarity], result of:
            0.101760544 = score(doc=3558,freq=1.0), product of:
              0.2368108 = queryWeight, product of:
                2.8329325 = boost
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.012158147 = queryNorm
              0.4297124 = fieldWeight in 3558, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.058694813 = weight(abstract_txt:automatic in 3558) [ClassicSimilarity], result of:
            0.058694813 = score(doc=3558,freq=1.0), product of:
              0.18060425 = queryWeight, product of:
                2.8567276 = boost
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.012158147 = queryNorm
              0.32499132 = fieldWeight in 3558, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.06822428 = weight(abstract_txt:method in 3558) [ClassicSimilarity], result of:
            0.06822428 = score(doc=3558,freq=2.0), product of:
              0.17070548 = queryWeight, product of:
                3.1051571 = boost
                4.5216455 = idf(docFreq=1262, maxDocs=42740)
                0.012158147 = queryNorm
              0.39966077 = fieldWeight in 3558, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.5216455 = idf(docFreq=1262, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
          0.2280402 = weight(abstract_txt:summarization in 3558) [ClassicSimilarity], result of:
            0.2280402 = score(doc=3558,freq=1.0), product of:
              0.5109356 = queryWeight, product of:
                5.884825 = boost
                7.141102 = idf(docFreq=91, maxDocs=42740)
                0.012158147 = queryNorm
              0.44631886 = fieldWeight in 3558, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.141102 = idf(docFreq=91, maxDocs=42740)
                0.0625 = fieldNorm(doc=3558)
        0.36 = coord(9/25)
    
  4. Sankarasubramaniam, Y.; Ramanathan, K.; Ghosh, S.: Text summarization using Wikipedia (2014) 0.27
    0.26898563 = sum of:
      0.26898563 = product of:
        0.96066296 = sum of:
          0.024018135 = weight(abstract_txt:text in 4694) [ClassicSimilarity], result of:
            0.024018135 = score(doc=4694,freq=3.0), product of:
              0.05478192 = queryWeight, product of:
                1.1125216 = boost
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.012158147 = queryNorm
              0.43843177 = fieldWeight in 4694, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.0500593 = idf(docFreq=2023, maxDocs=42740)
                0.0625 = fieldNorm(doc=4694)
          0.03613813 = weight(abstract_txt:proposed in 4694) [ClassicSimilarity], result of:
            0.03613813 = score(doc=4694,freq=3.0), product of:
              0.0719319 = queryWeight, product of:
                1.2748251 = boost
                4.640914 = idf(docFreq=1120, maxDocs=42740)
                0.012158147 = queryNorm
              0.50239366 = fieldWeight in 4694, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.640914 = idf(docFreq=1120, maxDocs=42740)
                0.0625 = fieldNorm(doc=4694)
          0.07157915 = weight(abstract_txt:sentences in 4694) [ClassicSimilarity], result of:
            0.07157915 = score(doc=4694,freq=1.0), product of:
              0.1636223 = queryWeight, product of:
                1.9226981 = boost
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.012158147 = queryNorm
              0.43746573 = fieldWeight in 4694, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.0625 = fieldNorm(doc=4694)
          0.14391114 = weight(abstract_txt:sentence in 4694) [ClassicSimilarity], result of:
            0.14391114 = score(doc=4694,freq=2.0), product of:
              0.2368108 = queryWeight, product of:
                2.8329325 = boost
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.012158147 = queryNorm
              0.6077051 = fieldWeight in 4694, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.0625 = fieldNorm(doc=4694)
          0.058694813 = weight(abstract_txt:automatic in 4694) [ClassicSimilarity], result of:
            0.058694813 = score(doc=4694,freq=1.0), product of:
              0.18060425 = queryWeight, product of:
                2.8567276 = boost
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.012158147 = queryNorm
              0.32499132 = fieldWeight in 4694, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.199861 = idf(docFreq=640, maxDocs=42740)
                0.0625 = fieldNorm(doc=4694)
          0.06773945 = weight(abstract_txt:word in 4694) [ClassicSimilarity], result of:
            0.06773945 = score(doc=4694,freq=1.0), product of:
              0.19871132 = queryWeight, product of:
                2.996513 = boost
                5.4543004 = idf(docFreq=496, maxDocs=42740)
                0.012158147 = queryNorm
              0.34089378 = fieldWeight in 4694, 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=4694)
          0.5585821 = weight(abstract_txt:summarization in 4694) [ClassicSimilarity], result of:
            0.5585821 = score(doc=4694,freq=6.0), product of:
              0.5109356 = queryWeight, product of:
                5.884825 = boost
                7.141102 = idf(docFreq=91, maxDocs=42740)
                0.012158147 = queryNorm
              1.0932535 = fieldWeight in 4694, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                7.141102 = idf(docFreq=91, maxDocs=42740)
                0.0625 = fieldNorm(doc=4694)
        0.28 = coord(7/25)
    
  5. Ouyang, Y.; Li, W.; Li, S.; Lu, Q.: Intertopic information mining for query-based summarization (2010) 0.26
    0.2646906 = sum of:
      0.2646906 = product of:
        0.94532365 = sum of:
          0.06977082 = weight(abstract_txt:unknown in 460) [ClassicSimilarity], result of:
            0.06977082 = score(doc=460,freq=3.0), product of:
              0.088521816 = queryWeight, product of:
                7.280864 = idf(docFreq=79, maxDocs=42740)
                0.012158147 = queryNorm
              0.7881766 = fieldWeight in 460, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.280864 = idf(docFreq=79, maxDocs=42740)
                0.0625 = fieldNorm(doc=460)
          0.03042312 = weight(abstract_txt:according in 460) [ClassicSimilarity], result of:
            0.03042312 = score(doc=460,freq=1.0), product of:
              0.09249551 = queryWeight, product of:
                1.4456067 = boost
                5.262633 = idf(docFreq=601, maxDocs=42740)
                0.012158147 = queryNorm
              0.32891455 = fieldWeight in 460, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.262633 = idf(docFreq=601, maxDocs=42740)
                0.0625 = fieldNorm(doc=460)
          0.045417693 = weight(abstract_txt:words in 460) [ClassicSimilarity], result of:
            0.045417693 = score(doc=460,freq=2.0), product of:
              0.095894024 = queryWeight, product of:
                1.4719248 = boost
                5.358442 = idf(docFreq=546, maxDocs=42740)
                0.012158147 = queryNorm
              0.4736238 = fieldWeight in 460, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.358442 = idf(docFreq=546, maxDocs=42740)
                0.0625 = fieldNorm(doc=460)
          0.07157915 = weight(abstract_txt:sentences in 460) [ClassicSimilarity], result of:
            0.07157915 = score(doc=460,freq=1.0), product of:
              0.1636223 = queryWeight, product of:
                1.9226981 = boost
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.012158147 = queryNorm
              0.43746573 = fieldWeight in 460, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9994516 = idf(docFreq=105, maxDocs=42740)
                0.0625 = fieldNorm(doc=460)
          0.17625444 = weight(abstract_txt:sentence in 460) [ClassicSimilarity], result of:
            0.17625444 = score(doc=460,freq=3.0), product of:
              0.2368108 = queryWeight, product of:
                2.8329325 = boost
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.012158147 = queryNorm
              0.74428374 = fieldWeight in 460, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.8753986 = idf(docFreq=119, maxDocs=42740)
                0.0625 = fieldNorm(doc=460)
          0.095798045 = weight(abstract_txt:word in 460) [ClassicSimilarity], result of:
            0.095798045 = score(doc=460,freq=2.0), product of:
              0.19871132 = queryWeight, product of:
                2.996513 = boost
                5.4543004 = idf(docFreq=496, maxDocs=42740)
                0.012158147 = queryNorm
              0.48209658 = fieldWeight in 460, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4543004 = idf(docFreq=496, maxDocs=42740)
                0.0625 = fieldNorm(doc=460)
          0.4560804 = weight(abstract_txt:summarization in 460) [ClassicSimilarity], result of:
            0.4560804 = score(doc=460,freq=4.0), product of:
              0.5109356 = queryWeight, product of:
                5.884825 = boost
                7.141102 = idf(docFreq=91, maxDocs=42740)
                0.012158147 = queryNorm
              0.8926377 = fieldWeight in 460, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.141102 = idf(docFreq=91, maxDocs=42740)
                0.0625 = fieldNorm(doc=460)
        0.28 = coord(7/25)