Document (#40596)

Author
Arapakis, I.
Cambazoglu, B.B.
Lalmas, M.
Title
On the feasibility of predicting popular news at cold start
Source
Journal of the Association for Information Science and Technology. 68(2017) no.5, S.1149-1164
Year
2017
Abstract
Prominent news sites on the web provide hundreds of news articles daily. The abundance of news content competing to attract online attention, coupled with the manual effort involved in article selection, necessitates the timely prediction of future popularity of these news articles. The future popularity of a news article can be estimated using signals indicating the article's penetration in social media (e.g., number of tweets) in addition to traditional web analytics (e.g., number of page views). In practice, it is important to make such estimations as early as possible, preferably before the article is made available on the news site (i.e., at cold start). In this paper we perform a study on cold-start news popularity prediction using a collection of 13,319 news articles obtained from Yahoo News, a major news provider. We characterize the popularity of news articles through a set of online metrics and try to predict their values across time using machine learning techniques on a large collection of features obtained from various sources. Our findings indicate that predicting news popularity at cold start is a difficult task, contrary to the findings of a prior work on the same topic. Most articles' popularity may not be accurately anticipated solely on the basis of content features, without having the early-stage popularity values.
Content
Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23756/full.
Field
Kommunikationswissenschaften

Similar documents (author)

  1. Arapakis, I.; Lalmas, M.; Cambazoglu, B.B.; MarcosM.-C.; Jose, J.M.: User engagement in online news : under the scope of sentiment, interest, affect, and gaze (2014) 4.03
    4.030471 = sum of:
      4.030471 = sum of:
        1.5986671 = weight(author_txt:lalmas in 2497) [ClassicSimilarity], result of:
          1.5986671 = score(doc=2497,freq=1.0), product of:
            0.60308635 = queryWeight, product of:
              8.482592 = idf(docFreq=24, maxDocs=44421)
              0.07109694 = queryNorm
            2.6508098 = fieldWeight in 2497, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.482592 = idf(docFreq=24, maxDocs=44421)
              0.3125 = fieldNorm(doc=2497)
        2.431804 = weight(author_txt:cambazoglu in 2497) [ClassicSimilarity], result of:
          2.431804 = score(doc=2497,freq=1.0), product of:
            0.7976759 = queryWeight, product of:
              1.1500679 = boost
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.07109694 = queryNorm
            3.0486116 = fieldWeight in 2497, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.3125 = fieldNorm(doc=2497)
    
  2. Cambazoglu, B. Barla => Barla Cambazoglu, B.: 2.06
    2.0634542 = sum of:
      2.0634542 = product of:
        4.1269083 = sum of:
          4.1269083 = weight(author_txt:cambazoglu in 2505) [ClassicSimilarity], result of:
            4.1269083 = score(doc=2505,freq=2.0), product of:
              0.7976759 = queryWeight, product of:
                1.1500679 = boost
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.07109694 = queryNorm
              5.1736655 = fieldWeight in 2505, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.375 = fieldNorm(doc=2505)
        0.5 = coord(1/2)
    
  3. Lalmas, M.: Logical models in information retrieval : introduction and overview (1998) 1.60
    1.5986671 = sum of:
      1.5986671 = product of:
        3.1973343 = sum of:
          3.1973343 = weight(author_txt:lalmas in 3668) [ClassicSimilarity], result of:
            3.1973343 = score(doc=3668,freq=1.0), product of:
              0.60308635 = queryWeight, product of:
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.07109694 = queryNorm
              5.3016195 = fieldWeight in 3668, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.625 = fieldNorm(doc=3668)
        0.5 = coord(1/2)
    
  4. Lalmas, M.: XML information retrieval (2009) 1.60
    1.5986671 = sum of:
      1.5986671 = product of:
        3.1973343 = sum of:
          3.1973343 = weight(author_txt:lalmas in 867) [ClassicSimilarity], result of:
            3.1973343 = score(doc=867,freq=1.0), product of:
              0.60308635 = queryWeight, product of:
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.07109694 = queryNorm
              5.3016195 = fieldWeight in 867, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.625 = fieldNorm(doc=867)
        0.5 = coord(1/2)
    
  5. Lalmas, M.: XML retrieval (2009) 1.60
    1.5986671 = sum of:
      1.5986671 = product of:
        3.1973343 = sum of:
          3.1973343 = weight(author_txt:lalmas in 998) [ClassicSimilarity], result of:
            3.1973343 = score(doc=998,freq=1.0), product of:
              0.60308635 = queryWeight, product of:
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.07109694 = queryNorm
              5.3016195 = fieldWeight in 998, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.482592 = idf(docFreq=24, maxDocs=44421)
                0.625 = fieldNorm(doc=998)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Arapakis, I.; Lalmas, M.; Cambazoglu, B.B.; MarcosM.-C.; Jose, J.M.: User engagement in online news : under the scope of sentiment, interest, affect, and gaze (2014) 0.19
    0.1869886 = sum of:
      0.1869886 = product of:
        0.7791192 = sum of:
          0.020981863 = weight(abstract_txt:content in 2497) [ClassicSimilarity], result of:
            0.020981863 = score(doc=2497,freq=3.0), product of:
              0.04637328 = queryWeight, product of:
                1.0225208 = boost
                4.1796083 = idf(docFreq=1847, maxDocs=44421)
                0.010850758 = queryNorm
              0.45245588 = fieldWeight in 2497, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.1796083 = idf(docFreq=1847, maxDocs=44421)
                0.0625 = fieldNorm(doc=2497)
          0.01667734 = weight(abstract_txt:collection in 2497) [ClassicSimilarity], result of:
            0.01667734 = score(doc=2497,freq=1.0), product of:
              0.057389185 = queryWeight, product of:
                1.1375048 = boost
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.010850758 = queryNorm
              0.29060075 = fieldWeight in 2497, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.0625 = fieldNorm(doc=2497)
          0.019302377 = weight(abstract_txt:article in 2497) [ClassicSimilarity], result of:
            0.019302377 = score(doc=2497,freq=2.0), product of:
              0.057478644 = queryWeight, product of:
                1.3942387 = boost
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.010850758 = queryNorm
              0.33581826 = fieldWeight in 2497, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.0625 = fieldNorm(doc=2497)
          0.031597868 = weight(abstract_txt:obtained in 2497) [ClassicSimilarity], result of:
            0.031597868 = score(doc=2497,freq=1.0), product of:
              0.08787204 = queryWeight, product of:
                1.4075493 = boost
                5.7534328 = idf(docFreq=382, maxDocs=44421)
                0.010850758 = queryNorm
              0.35958955 = fieldWeight in 2497, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7534328 = idf(docFreq=382, maxDocs=44421)
                0.0625 = fieldNorm(doc=2497)
          0.045294814 = weight(abstract_txt:articles in 2497) [ClassicSimilarity], result of:
            0.045294814 = score(doc=2497,freq=1.0), product of:
              0.15162048 = queryWeight, product of:
                2.9233928 = boost
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.010850758 = queryNorm
              0.2987381 = fieldWeight in 2497, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.0625 = fieldNorm(doc=2497)
          0.6452649 = weight(abstract_txt:news in 2497) [ClassicSimilarity], result of:
            0.6452649 = score(doc=2497,freq=8.0), product of:
              0.6126024 = queryWeight, product of:
                9.47511 = boost
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.010850758 = queryNorm
              1.0533177 = fieldWeight in 2497, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.0625 = fieldNorm(doc=2497)
        0.24 = coord(6/25)
    
  2. Ma, Z.; Sun, A.; Cong, G.: On predicting the popularity of newly emerging hashtags in Twitter (2013) 0.18
    0.18386184 = sum of:
      0.18386184 = product of:
        0.5107273 = sum of:
          0.01713162 = weight(abstract_txt:content in 1967) [ClassicSimilarity], result of:
            0.01713162 = score(doc=1967,freq=2.0), product of:
              0.04637328 = queryWeight, product of:
                1.0225208 = boost
                4.1796083 = idf(docFreq=1847, maxDocs=44421)
                0.010850758 = queryNorm
              0.36942866 = fieldWeight in 1967, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1796083 = idf(docFreq=1847, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.012604069 = weight(abstract_txt:future in 1967) [ClassicSimilarity], result of:
            0.012604069 = score(doc=1967,freq=1.0), product of:
              0.04761598 = queryWeight, product of:
                1.0361308 = boost
                4.23524 = idf(docFreq=1747, maxDocs=44421)
                0.010850758 = queryNorm
              0.2647025 = fieldWeight in 1967, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.23524 = idf(docFreq=1747, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.041093357 = weight(abstract_txt:features in 1967) [ClassicSimilarity], result of:
            0.041093357 = score(doc=1967,freq=7.0), product of:
              0.054730233 = queryWeight, product of:
                1.1108409 = boost
                4.5406218 = idf(docFreq=1287, maxDocs=44421)
                0.010850758 = queryNorm
              0.7508347 = fieldWeight in 1967, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.5406218 = idf(docFreq=1287, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.01667734 = weight(abstract_txt:collection in 1967) [ClassicSimilarity], result of:
            0.01667734 = score(doc=1967,freq=1.0), product of:
              0.057389185 = queryWeight, product of:
                1.1375048 = boost
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.010850758 = queryNorm
              0.29060075 = fieldWeight in 1967, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.010280573 = weight(abstract_txt:using in 1967) [ClassicSimilarity], result of:
            0.010280573 = score(doc=1967,freq=1.0), product of:
              0.047583256 = queryWeight, product of:
                1.2685598 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.010850758 = queryNorm
              0.21605442 = fieldWeight in 1967, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.013648843 = weight(abstract_txt:article in 1967) [ClassicSimilarity], result of:
            0.013648843 = score(doc=1967,freq=1.0), product of:
              0.057478644 = queryWeight, product of:
                1.3942387 = boost
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.010850758 = queryNorm
              0.23745938 = fieldWeight in 1967, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.06168414 = weight(abstract_txt:prediction in 1967) [ClassicSimilarity], result of:
            0.06168414 = score(doc=1967,freq=1.0), product of:
              0.13725491 = queryWeight, product of:
                1.7591472 = boost
                7.190608 = idf(docFreq=90, maxDocs=44421)
                0.010850758 = queryNorm
              0.449413 = fieldWeight in 1967, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.190608 = idf(docFreq=90, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.0690841 = weight(abstract_txt:predicting in 1967) [ClassicSimilarity], result of:
            0.0690841 = score(doc=1967,freq=1.0), product of:
              0.14802359 = queryWeight, product of:
                1.8268534 = boost
                7.467361 = idf(docFreq=68, maxDocs=44421)
                0.010850758 = queryNorm
              0.46671006 = fieldWeight in 1967, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.467361 = idf(docFreq=68, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
          0.26852322 = weight(abstract_txt:popularity in 1967) [ClassicSimilarity], result of:
            0.26852322 = score(doc=1967,freq=2.0), product of:
              0.4409738 = queryWeight, product of:
                5.8990035 = boost
                6.889283 = idf(docFreq=122, maxDocs=44421)
                0.010850758 = queryNorm
              0.6089324 = fieldWeight in 1967, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.889283 = idf(docFreq=122, maxDocs=44421)
                0.0625 = fieldNorm(doc=1967)
        0.36 = coord(9/25)
    
  3. Arapakis, I.; Lalmas, M.; Ceylan, H.; Donmez, P.: Automatically embedding newsworthy links to articles : from implementation to evaluation (2014) 0.16
    0.16231959 = sum of:
      0.16231959 = product of:
        0.67633164 = sum of:
          0.011762393 = weight(abstract_txt:findings in 2185) [ClassicSimilarity], result of:
            0.011762393 = score(doc=2185,freq=1.0), product of:
              0.045471855 = queryWeight, product of:
                1.0125339 = boost
                4.1387863 = idf(docFreq=1924, maxDocs=44421)
                0.010850758 = queryNorm
              0.25867414 = fieldWeight in 2185, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1387863 = idf(docFreq=1924, maxDocs=44421)
                0.0625 = fieldNorm(doc=2185)
          0.012113885 = weight(abstract_txt:content in 2185) [ClassicSimilarity], result of:
            0.012113885 = score(doc=2185,freq=1.0), product of:
              0.04637328 = queryWeight, product of:
                1.0225208 = boost
                4.1796083 = idf(docFreq=1847, maxDocs=44421)
                0.010850758 = queryNorm
              0.26122552 = fieldWeight in 2185, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1796083 = idf(docFreq=1847, maxDocs=44421)
                0.0625 = fieldNorm(doc=2185)
          0.010280573 = weight(abstract_txt:using in 2185) [ClassicSimilarity], result of:
            0.010280573 = score(doc=2185,freq=1.0), product of:
              0.047583256 = queryWeight, product of:
                1.2685598 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.010850758 = queryNorm
              0.21605442 = fieldWeight in 2185, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.0625 = fieldNorm(doc=2185)
          0.019302377 = weight(abstract_txt:article in 2185) [ClassicSimilarity], result of:
            0.019302377 = score(doc=2185,freq=2.0), product of:
              0.057478644 = queryWeight, product of:
                1.3942387 = boost
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.010850758 = queryNorm
              0.33581826 = fieldWeight in 2185, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.0625 = fieldNorm(doc=2185)
          0.06405654 = weight(abstract_txt:articles in 2185) [ClassicSimilarity], result of:
            0.06405654 = score(doc=2185,freq=2.0), product of:
              0.15162048 = queryWeight, product of:
                2.9233928 = boost
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.010850758 = queryNorm
              0.42247945 = fieldWeight in 2185, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.0625 = fieldNorm(doc=2185)
          0.5588159 = weight(abstract_txt:news in 2185) [ClassicSimilarity], result of:
            0.5588159 = score(doc=2185,freq=6.0), product of:
              0.6126024 = queryWeight, product of:
                9.47511 = boost
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.010850758 = queryNorm
              0.9121999 = fieldWeight in 2185, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.0625 = fieldNorm(doc=2185)
        0.24 = coord(6/25)
    
  4. Montalvo, S.; Martínez, R.; Fresno, V.; Delgado, A.: Exploiting named entities for bilingual news clustering (2015) 0.16
    0.1572437 = sum of:
      0.1572437 = product of:
        0.6551821 = sum of:
          0.0146698505 = weight(abstract_txt:number in 2642) [ClassicSimilarity], result of:
            0.0146698505 = score(doc=2642,freq=1.0), product of:
              0.0454035 = queryWeight, product of:
                1.0117725 = boost
                4.1356745 = idf(docFreq=1930, maxDocs=44421)
                0.010850758 = queryNorm
              0.32309955 = fieldWeight in 2642, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1356745 = idf(docFreq=1930, maxDocs=44421)
                0.078125 = fieldNorm(doc=2642)
          0.019414788 = weight(abstract_txt:features in 2642) [ClassicSimilarity], result of:
            0.019414788 = score(doc=2642,freq=1.0), product of:
              0.054730233 = queryWeight, product of:
                1.1108409 = boost
                4.5406218 = idf(docFreq=1287, maxDocs=44421)
                0.010850758 = queryNorm
              0.3547361 = fieldWeight in 2642, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5406218 = idf(docFreq=1287, maxDocs=44421)
                0.078125 = fieldNorm(doc=2642)
          0.020846676 = weight(abstract_txt:collection in 2642) [ClassicSimilarity], result of:
            0.020846676 = score(doc=2642,freq=1.0), product of:
              0.057389185 = queryWeight, product of:
                1.1375048 = boost
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.010850758 = queryNorm
              0.36325094 = fieldWeight in 2642, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.078125 = fieldNorm(doc=2642)
          0.012850716 = weight(abstract_txt:using in 2642) [ClassicSimilarity], result of:
            0.012850716 = score(doc=2642,freq=1.0), product of:
              0.047583256 = queryWeight, product of:
                1.2685598 = boost
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.010850758 = queryNorm
              0.27006802 = fieldWeight in 2642, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4568708 = idf(docFreq=3806, maxDocs=44421)
                0.078125 = fieldNorm(doc=2642)
          0.017061053 = weight(abstract_txt:article in 2642) [ClassicSimilarity], result of:
            0.017061053 = score(doc=2642,freq=1.0), product of:
              0.057478644 = queryWeight, product of:
                1.3942387 = boost
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.010850758 = queryNorm
              0.29682422 = fieldWeight in 2642, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.078125 = fieldNorm(doc=2642)
          0.570339 = weight(abstract_txt:news in 2642) [ClassicSimilarity], result of:
            0.570339 = score(doc=2642,freq=4.0), product of:
              0.6126024 = queryWeight, product of:
                9.47511 = boost
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.010850758 = queryNorm
              0.9310101 = fieldWeight in 2642, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.078125 = fieldNorm(doc=2642)
        0.24 = coord(6/25)
    
  5. Sundar, S.S.; Knobloch-Westerwick, S.; Hastall, M.R.: News cues : information scent and cognitive heuristics (2007) 0.15
    0.15026595 = sum of:
      0.15026595 = product of:
        0.7513297 = sum of:
          0.016597042 = weight(abstract_txt:number in 1143) [ClassicSimilarity], result of:
            0.016597042 = score(doc=1143,freq=2.0), product of:
              0.0454035 = queryWeight, product of:
                1.0117725 = boost
                4.1356745 = idf(docFreq=1930, maxDocs=44421)
                0.010850758 = queryNorm
              0.36554542 = fieldWeight in 1143, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1356745 = idf(docFreq=1930, maxDocs=44421)
                0.0625 = fieldNorm(doc=1143)
          0.011762393 = weight(abstract_txt:findings in 1143) [ClassicSimilarity], result of:
            0.011762393 = score(doc=1143,freq=1.0), product of:
              0.045471855 = queryWeight, product of:
                1.0125339 = boost
                4.1387863 = idf(docFreq=1924, maxDocs=44421)
                0.010850758 = queryNorm
              0.25867414 = fieldWeight in 1143, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1387863 = idf(docFreq=1924, maxDocs=44421)
                0.0625 = fieldNorm(doc=1143)
          0.013648843 = weight(abstract_txt:article in 1143) [ClassicSimilarity], result of:
            0.013648843 = score(doc=1143,freq=1.0), product of:
              0.057478644 = queryWeight, product of:
                1.3942387 = boost
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.010850758 = queryNorm
              0.23745938 = fieldWeight in 1143, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.79935 = idf(docFreq=2702, maxDocs=44421)
                0.0625 = fieldNorm(doc=1143)
          0.06405654 = weight(abstract_txt:articles in 1143) [ClassicSimilarity], result of:
            0.06405654 = score(doc=1143,freq=2.0), product of:
              0.15162048 = queryWeight, product of:
                2.9233928 = boost
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.010850758 = queryNorm
              0.42247945 = fieldWeight in 1143, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.0625 = fieldNorm(doc=1143)
          0.6452649 = weight(abstract_txt:news in 1143) [ClassicSimilarity], result of:
            0.6452649 = score(doc=1143,freq=8.0), product of:
              0.6126024 = queryWeight, product of:
                9.47511 = boost
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.010850758 = queryNorm
              1.0533177 = fieldWeight in 1143, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                5.9584646 = idf(docFreq=311, maxDocs=44421)
                0.0625 = fieldNorm(doc=1143)
        0.2 = coord(5/25)