Document (#39707)

Author
Yang, P.
Gao, W.
Tan, Q.
Wong, K.-F.
Title
¬A link-bridged topic model for cross-domain document classification
Source
Information processing and management. 49(2013) no.6, S.1181-1193
Year
2013
Abstract
Transfer learning utilizes labeled data available from some related domain (source domain) for achieving effective knowledge transformation to the target domain. However, most state-of-the-art cross-domain classification methods treat documents as plain text and ignore the hyperlink (or citation) relationship existing among the documents. In this paper, we propose a novel cross-domain document classification approach called Link-Bridged Topic model (LBT). LBT consists of two key steps. Firstly, LBT utilizes an auxiliary link network to discover the direct or indirect co-citation relationship among documents by embedding the background knowledge into a graph kernel. The mined co-citation relationship is leveraged to bridge the gap across different domains. Secondly, LBT simultaneously combines the content information and link structures into a unified latent topic model. The model is based on an assumption that the documents of source and target domains share some common topics from the point of view of both content information and link structure. By mapping both domains data into the latent topic spaces, LBT encodes the knowledge about domain commonality and difference as the shared topics with associated differential probabilities. The learned latent topics must be consistent with the source and target data, as well as content and link statistics. Then the shared topics act as the bridge to facilitate knowledge transfer from the source to the target domains. Experiments on different types of datasets show that our algorithm significantly improves the generalization performance of cross-domain document classification.
Content
Vgl.: doi: 10.1016/j.ipm.2013.05.002.
Theme
Automatisches Klassifizieren

Similar documents (author)

  1. Salton, G.; Wong, A.; Yang, C.S.: ¬A vector space model for automatic indexing (1975) 4.08 
    4.076929 = sum of:
  4.076929 = sum of:
    1.6312529 = weight(author_txt:yang in 2934) [ClassicSimilarity], result of:
      1.6312529 = score(doc=2934,freq=1.0), product of:
        0.60679144 = queryWeight, product of:
          7.168868 = idf(docFreq=92, maxDocs=44421)
          0.084642574 = queryNorm
        2.6883254 = fieldWeight in 2934, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.168868 = idf(docFreq=92, maxDocs=44421)
          0.375 = fieldNorm(doc=2934)
    2.445676 = weight(author_txt:wong in 2934) [ClassicSimilarity], result of:
      2.445676 = score(doc=2934,freq=1.0), product of:
        0.794861 = queryWeight, product of:
          1.1445266 = boost
          8.20496 = idf(docFreq=32, maxDocs=44421)
          0.084642574 = queryNorm
        3.07686 = fieldWeight in 2934, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.20496 = idf(docFreq=32, maxDocs=44421)
          0.375 = fieldNorm(doc=2934)
  2. Wong, S.K.M.: On modelling information retrieval with probabilistic inference (1995) 2.04 
    2.0380633 = sum of:
  2.0380633 = product of:
    4.0761266 = sum of:
      4.0761266 = weight(author_txt:wong in 2006) [ClassicSimilarity], result of:
        4.0761266 = score(doc=2006,freq=1.0), product of:
          0.794861 = queryWeight, product of:
            1.1445266 = boost
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.084642574 = queryNorm
          5.1281 = fieldWeight in 2006, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.625 = fieldNorm(doc=2006)
    0.5 = coord(1/2)
  3. Wong, K.: Frühe Spuren des menschlichen Geistes (2005) 2.04 
    2.0380633 = sum of:
  2.0380633 = product of:
    4.0761266 = sum of:
      4.0761266 = weight(author_txt:wong in 1983) [ClassicSimilarity], result of:
        4.0761266 = score(doc=1983,freq=1.0), product of:
          0.794861 = queryWeight, product of:
            1.1445266 = boost
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.084642574 = queryNorm
          5.1281 = fieldWeight in 1983, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.625 = fieldNorm(doc=1983)
    0.5 = coord(1/2)
  4. Salton, G.; Wong, A.: Generation and search of clustered files (1978) 1.63 
    1.6304507 = sum of:
  1.6304507 = product of:
    3.2609015 = sum of:
      3.2609015 = weight(author_txt:wong in 2410) [ClassicSimilarity], result of:
        3.2609015 = score(doc=2410,freq=1.0), product of:
          0.794861 = queryWeight, product of:
            1.1445266 = boost
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.084642574 = queryNorm
          4.10248 = fieldWeight in 2410, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.5 = fieldNorm(doc=2410)
    0.5 = coord(1/2)
  5. Wong, S.K.M.; Yao, Y.Y.: ¬An information-theoretic measure of term specifics (1992) 1.63 
    1.6304507 = sum of:
  1.6304507 = product of:
    3.2609015 = sum of:
      3.2609015 = weight(author_txt:wong in 4806) [ClassicSimilarity], result of:
        3.2609015 = score(doc=4806,freq=1.0), product of:
          0.794861 = queryWeight, product of:
            1.1445266 = boost
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.084642574 = queryNorm
          4.10248 = fieldWeight in 4806, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.20496 = idf(docFreq=32, maxDocs=44421)
            0.5 = fieldNorm(doc=4806)
    0.5 = coord(1/2)

Similar documents (content)

  1. Finn, A.; Kushmerick, N.: Learning to classify documents according to genre (2006) 0.22 
    0.22042604 = sum of:
  0.22042604 = product of:
    0.6888314 = sum of:
      0.10083332 = weight(abstract_txt:transfer in 10) [ClassicSimilarity], result of:
        0.10083332 = score(doc=10,freq=2.0), product of:
          0.14540532 = queryWeight, product of:
            1.3492703 = boost
            6.2765174 = idf(docFreq=226, maxDocs=44421)
            0.017169695 = queryNorm
          0.69346374 = fieldWeight in 10, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.2765174 = idf(docFreq=226, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
      0.03424962 = weight(abstract_txt:document in 10) [ClassicSimilarity], result of:
        0.03424962 = score(doc=10,freq=1.0), product of:
          0.102091245 = queryWeight, product of:
            1.3846778 = boost
            4.29415 = idf(docFreq=1647, maxDocs=44421)
            0.017169695 = queryNorm
          0.33548045 = fieldWeight in 10, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.29415 = idf(docFreq=1647, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
      0.051892128 = weight(abstract_txt:classification in 10) [ClassicSimilarity], result of:
        0.051892128 = score(doc=10,freq=2.0), product of:
          0.11764909 = queryWeight, product of:
            1.7163985 = boost
            3.9921594 = idf(docFreq=2228, maxDocs=44421)
            0.017169695 = queryNorm
          0.44107544 = fieldWeight in 10, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.9921594 = idf(docFreq=2228, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
      0.09903307 = weight(abstract_txt:documents in 10) [ClassicSimilarity], result of:
        0.09903307 = score(doc=10,freq=6.0), product of:
          0.12550682 = queryWeight, product of:
            1.7727908 = boost
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.017169695 = queryNorm
          0.7890653 = fieldWeight in 10, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
      0.10527533 = weight(abstract_txt:topic in 10) [ClassicSimilarity], result of:
        0.10527533 = score(doc=10,freq=2.0), product of:
          0.1885408 = queryWeight, product of:
            2.1728337 = boost
            5.053779 = idf(docFreq=770, maxDocs=44421)
            0.017169695 = queryNorm
          0.558369 = fieldWeight in 10, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.053779 = idf(docFreq=770, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
      0.07554896 = weight(abstract_txt:topics in 10) [ClassicSimilarity], result of:
        0.07554896 = score(doc=10,freq=1.0), product of:
          0.19040714 = queryWeight, product of:
            2.1835616 = boost
            5.078731 = idf(docFreq=751, maxDocs=44421)
            0.017169695 = queryNorm
          0.39677587 = fieldWeight in 10, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.078731 = idf(docFreq=751, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
      0.10002633 = weight(abstract_txt:domains in 10) [ClassicSimilarity], result of:
        0.10002633 = score(doc=10,freq=1.0), product of:
          0.2295834 = queryWeight, product of:
            2.3976958 = boost
            5.576784 = idf(docFreq=456, maxDocs=44421)
            0.017169695 = queryNorm
          0.43568626 = fieldWeight in 10, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.576784 = idf(docFreq=456, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
      0.12197268 = weight(abstract_txt:domain in 10) [ClassicSimilarity], result of:
        0.12197268 = score(doc=10,freq=1.0), product of:
          0.33015355 = queryWeight, product of:
            4.0662756 = boost
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.017169695 = queryNorm
          0.36944228 = fieldWeight in 10, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.078125 = fieldNorm(doc=10)
    0.32 = coord(8/25)
  2. Joo, S.; Choi, I.; Choi, N.: Topic analysis of the research domain in knowledge organization : a Latent Dirichlet Allocation approach (2018) 0.22 
    0.21924615 = sum of:
  0.21924615 = product of:
    0.68514425 = sum of:
      0.017486319 = weight(abstract_txt:into in 304) [ClassicSimilarity], result of:
        0.017486319 = score(doc=304,freq=1.0), product of:
          0.075675786 = queryWeight, product of:
            1.1921556 = boost
            3.697102 = idf(docFreq=2993, maxDocs=44421)
            0.017169695 = queryNorm
          0.23106888 = fieldWeight in 304, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.697102 = idf(docFreq=2993, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
      0.027399695 = weight(abstract_txt:document in 304) [ClassicSimilarity], result of:
        0.027399695 = score(doc=304,freq=1.0), product of:
          0.102091245 = queryWeight, product of:
            1.3846778 = boost
            4.29415 = idf(docFreq=1647, maxDocs=44421)
            0.017169695 = queryNorm
          0.26838437 = fieldWeight in 304, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.29415 = idf(docFreq=1647, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
      0.050406776 = weight(abstract_txt:knowledge in 304) [ClassicSimilarity], result of:
        0.050406776 = score(doc=304,freq=6.0), product of:
          0.09284242 = queryWeight, product of:
            1.5247444 = boost
            3.5463927 = idf(docFreq=3480, maxDocs=44421)
            0.017169695 = queryNorm
          0.5429283 = fieldWeight in 304, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            3.5463927 = idf(docFreq=3480, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
      0.02935462 = weight(abstract_txt:classification in 304) [ClassicSimilarity], result of:
        0.02935462 = score(doc=304,freq=1.0), product of:
          0.11764909 = queryWeight, product of:
            1.7163985 = boost
            3.9921594 = idf(docFreq=2228, maxDocs=44421)
            0.017169695 = queryNorm
          0.24950996 = fieldWeight in 304, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.9921594 = idf(docFreq=2228, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
      0.103148334 = weight(abstract_txt:topic in 304) [ClassicSimilarity], result of:
        0.103148334 = score(doc=304,freq=3.0), product of:
          0.1885408 = queryWeight, product of:
            2.1728337 = boost
            5.053779 = idf(docFreq=770, maxDocs=44421)
            0.017169695 = queryNorm
          0.5470876 = fieldWeight in 304, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.053779 = idf(docFreq=770, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
      0.12087833 = weight(abstract_txt:topics in 304) [ClassicSimilarity], result of:
        0.12087833 = score(doc=304,freq=4.0), product of:
          0.19040714 = queryWeight, product of:
            2.1835616 = boost
            5.078731 = idf(docFreq=751, maxDocs=44421)
            0.017169695 = queryNorm
          0.6348414 = fieldWeight in 304, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            5.078731 = idf(docFreq=751, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
      0.118278764 = weight(abstract_txt:latent in 304) [ClassicSimilarity], result of:
        0.118278764 = score(doc=304,freq=1.0), product of:
          0.2706632 = queryWeight, product of:
            2.2545977 = boost
            6.9919376 = idf(docFreq=110, maxDocs=44421)
            0.017169695 = queryNorm
          0.4369961 = fieldWeight in 304, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.9919376 = idf(docFreq=110, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
      0.21819139 = weight(abstract_txt:domain in 304) [ClassicSimilarity], result of:
        0.21819139 = score(doc=304,freq=5.0), product of:
          0.33015355 = queryWeight, product of:
            4.0662756 = boost
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.017169695 = queryNorm
          0.6608785 = fieldWeight in 304, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.0625 = fieldNorm(doc=304)
    0.32 = coord(8/25)
  3. Bar-Ilan, J.: What do we know about links and linking? : a framework for studying links in academic environments (2005) 0.21 
    0.20855984 = sum of:
  0.20855984 = product of:
    0.7448566 = sum of:
      0.021857899 = weight(abstract_txt:into in 2058) [ClassicSimilarity], result of:
        0.021857899 = score(doc=2058,freq=1.0), product of:
          0.075675786 = queryWeight, product of:
            1.1921556 = boost
            3.697102 = idf(docFreq=2993, maxDocs=44421)
            0.017169695 = queryNorm
          0.2888361 = fieldWeight in 2058, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.697102 = idf(docFreq=2993, maxDocs=44421)
            0.078125 = fieldNorm(doc=2058)
      0.05214074 = weight(abstract_txt:relationship in 2058) [ClassicSimilarity], result of:
        0.05214074 = score(doc=2058,freq=1.0), product of:
          0.13510439 = queryWeight, product of:
            1.5929025 = boost
            4.9398947 = idf(docFreq=863, maxDocs=44421)
            0.017169695 = queryNorm
          0.3859293 = fieldWeight in 2058, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.9398947 = idf(docFreq=863, maxDocs=44421)
            0.078125 = fieldNorm(doc=2058)
      0.063554615 = weight(abstract_txt:classification in 2058) [ClassicSimilarity], result of:
        0.063554615 = score(doc=2058,freq=3.0), product of:
          0.11764909 = queryWeight, product of:
            1.7163985 = boost
            3.9921594 = idf(docFreq=2228, maxDocs=44421)
            0.017169695 = queryNorm
          0.5402049 = fieldWeight in 2058, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.9921594 = idf(docFreq=2228, maxDocs=44421)
            0.078125 = fieldNorm(doc=2058)
      0.04043008 = weight(abstract_txt:documents in 2058) [ClassicSimilarity], result of:
        0.04043008 = score(doc=2058,freq=1.0), product of:
          0.12550682 = queryWeight, product of:
            1.7727908 = boost
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.017169695 = queryNorm
          0.32213452 = fieldWeight in 2058, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.078125 = fieldNorm(doc=2058)
      0.107946716 = weight(abstract_txt:source in 2058) [ClassicSimilarity], result of:
        0.107946716 = score(doc=2058,freq=2.0), product of:
          0.19171697 = queryWeight, product of:
            2.191059 = boost
            5.0961695 = idf(docFreq=738, maxDocs=44421)
            0.017169695 = queryNorm
          0.5630525 = fieldWeight in 2058, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.0961695 = idf(docFreq=738, maxDocs=44421)
            0.078125 = fieldNorm(doc=2058)
      0.23146486 = weight(abstract_txt:target in 2058) [ClassicSimilarity], result of:
        0.23146486 = score(doc=2058,freq=2.0), product of:
          0.3187946 = queryWeight, product of:
            2.8253958 = boost
            6.571569 = idf(docFreq=168, maxDocs=44421)
            0.017169695 = queryNorm
          0.72606266 = fieldWeight in 2058, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.571569 = idf(docFreq=168, maxDocs=44421)
            0.078125 = fieldNorm(doc=2058)
      0.22746171 = weight(abstract_txt:link in 2058) [ClassicSimilarity], result of:
        0.22746171 = score(doc=2058,freq=2.0), product of:
          0.36070892 = queryWeight, product of:
            3.6808481 = boost
            5.707506 = idf(docFreq=400, maxDocs=44421)
            0.017169695 = queryNorm
          0.6305963 = fieldWeight in 2058, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.707506 = idf(docFreq=400, maxDocs=44421)
            0.078125 = fieldNorm(doc=2058)
    0.28 = coord(7/25)
  4. Zhao, D.; Strotmann, A.: Mapping knowledge domains on Wikipedia : an author bibliographic coupling analysis of traditional Chinese medicine (2022) 0.20 
    0.19532606 = sum of:
  0.19532606 = product of:
    0.5425724 = sum of:
      0.016601868 = weight(abstract_txt:data in 1609) [ClassicSimilarity], result of:
        0.016601868 = score(doc=1609,freq=3.0), product of:
          0.061401844 = queryWeight, product of:
            1.0738539 = boost
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.017169695 = queryNorm
          0.27038062 = fieldWeight in 1609, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.3302255 = idf(docFreq=4320, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.020549772 = weight(abstract_txt:document in 1609) [ClassicSimilarity], result of:
        0.020549772 = score(doc=1609,freq=1.0), product of:
          0.102091245 = queryWeight, product of:
            1.3846778 = boost
            4.29415 = idf(docFreq=1647, maxDocs=44421)
            0.017169695 = queryNorm
          0.20128828 = fieldWeight in 1609, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.29415 = idf(docFreq=1647, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.051188327 = weight(abstract_txt:knowledge in 1609) [ClassicSimilarity], result of:
        0.051188327 = score(doc=1609,freq=11.0), product of:
          0.09284242 = queryWeight, product of:
            1.5247444 = boost
            3.5463927 = idf(docFreq=3480, maxDocs=44421)
            0.017169695 = queryNorm
          0.5513463 = fieldWeight in 1609, product of:
            3.3166249 = tf(freq=11.0), with freq of:
              11.0 = termFreq=11.0
            3.5463927 = idf(docFreq=3480, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.030350188 = weight(abstract_txt:citation in 1609) [ClassicSimilarity], result of:
        0.030350188 = score(doc=1609,freq=1.0), product of:
          0.13240105 = queryWeight, product of:
            1.5768856 = boost
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.017169695 = queryNorm
          0.22922921 = fieldWeight in 1609, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.03430606 = weight(abstract_txt:documents in 1609) [ClassicSimilarity], result of:
        0.03430606 = score(doc=1609,freq=2.0), product of:
          0.12550682 = queryWeight, product of:
            1.7727908 = boost
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.017169695 = queryNorm
          0.27334023 = fieldWeight in 1609, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.123322 = idf(docFreq=1954, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.04466454 = weight(abstract_txt:topic in 1609) [ClassicSimilarity], result of:
        0.04466454 = score(doc=1609,freq=1.0), product of:
          0.1885408 = queryWeight, product of:
            2.1728337 = boost
            5.053779 = idf(docFreq=770, maxDocs=44421)
            0.017169695 = queryNorm
          0.23689589 = fieldWeight in 1609, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.053779 = idf(docFreq=770, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.07851279 = weight(abstract_txt:topics in 1609) [ClassicSimilarity], result of:
        0.07851279 = score(doc=1609,freq=3.0), product of:
          0.19040714 = queryWeight, product of:
            2.1835616 = boost
            5.078731 = idf(docFreq=751, maxDocs=44421)
            0.017169695 = queryNorm
          0.4123416 = fieldWeight in 1609, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.078731 = idf(docFreq=751, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.120031595 = weight(abstract_txt:domains in 1609) [ClassicSimilarity], result of:
        0.120031595 = score(doc=1609,freq=4.0), product of:
          0.2295834 = queryWeight, product of:
            2.3976958 = boost
            5.576784 = idf(docFreq=456, maxDocs=44421)
            0.017169695 = queryNorm
          0.5228235 = fieldWeight in 1609, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            5.576784 = idf(docFreq=456, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
      0.14636722 = weight(abstract_txt:domain in 1609) [ClassicSimilarity], result of:
        0.14636722 = score(doc=1609,freq=4.0), product of:
          0.33015355 = queryWeight, product of:
            4.0662756 = boost
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.017169695 = queryNorm
          0.44333076 = fieldWeight in 1609, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.046875 = fieldNorm(doc=1609)
    0.36 = coord(9/25)
  5. Yan, E.: Finding knowledge paths among scientific disciplines (2014) 0.19 
    0.18713626 = sum of:
  0.18713626 = product of:
    0.6683438 = sum of:
      0.017486319 = weight(abstract_txt:into in 2534) [ClassicSimilarity], result of:
        0.017486319 = score(doc=2534,freq=1.0), product of:
          0.075675786 = queryWeight, product of:
            1.1921556 = boost
            3.697102 = idf(docFreq=2993, maxDocs=44421)
            0.017169695 = queryNorm
          0.23106888 = fieldWeight in 2534, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.697102 = idf(docFreq=2993, maxDocs=44421)
            0.0625 = fieldNorm(doc=2534)
      0.05703994 = weight(abstract_txt:transfer in 2534) [ClassicSimilarity], result of:
        0.05703994 = score(doc=2534,freq=1.0), product of:
          0.14540532 = queryWeight, product of:
            1.3492703 = boost
            6.2765174 = idf(docFreq=226, maxDocs=44421)
            0.017169695 = queryNorm
          0.39228234 = fieldWeight in 2534, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.2765174 = idf(docFreq=226, maxDocs=44421)
            0.0625 = fieldNorm(doc=2534)
      0.058204733 = weight(abstract_txt:knowledge in 2534) [ClassicSimilarity], result of:
        0.058204733 = score(doc=2534,freq=8.0), product of:
          0.09284242 = queryWeight, product of:
            1.5247444 = boost
            3.5463927 = idf(docFreq=3480, maxDocs=44421)
            0.017169695 = queryNorm
          0.62691957 = fieldWeight in 2534, product of:
            2.828427 = tf(freq=8.0), with freq of:
              8.0 = termFreq=8.0
            3.5463927 = idf(docFreq=3480, maxDocs=44421)
            0.0625 = fieldNorm(doc=2534)
      0.05722886 = weight(abstract_txt:citation in 2534) [ClassicSimilarity], result of:
        0.05722886 = score(doc=2534,freq=2.0), product of:
          0.13240105 = queryWeight, product of:
            1.5768856 = boost
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.017169695 = queryNorm
          0.43223873 = fieldWeight in 2534, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0625 = fieldNorm(doc=2534)
      0.21171583 = weight(abstract_txt:domains in 2534) [ClassicSimilarity], result of:
        0.21171583 = score(doc=2534,freq=7.0), product of:
          0.2295834 = queryWeight, product of:
            2.3976958 = boost
            5.576784 = idf(docFreq=456, maxDocs=44421)
            0.017169695 = queryNorm
          0.922174 = fieldWeight in 2534, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            5.576784 = idf(docFreq=456, maxDocs=44421)
            0.0625 = fieldNorm(doc=2534)
      0.12867178 = weight(abstract_txt:link in 2534) [ClassicSimilarity], result of:
        0.12867178 = score(doc=2534,freq=1.0), product of:
          0.36070892 = queryWeight, product of:
            3.6808481 = boost
            5.707506 = idf(docFreq=400, maxDocs=44421)
            0.017169695 = queryNorm
          0.35671914 = fieldWeight in 2534, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.707506 = idf(docFreq=400, maxDocs=44421)
            0.0625 = fieldNorm(doc=2534)
      0.13799633 = weight(abstract_txt:domain in 2534) [ClassicSimilarity], result of:
        0.13799633 = score(doc=2534,freq=2.0), product of:
          0.33015355 = queryWeight, product of:
            4.0662756 = boost
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.017169695 = queryNorm
          0.41797623 = fieldWeight in 2534, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.0625 = fieldNorm(doc=2534)
    0.28 = coord(7/25)