Search (5 results, page 1 of 1)

  • × author_ss:"Li, J."
  1. Li, J.; Zhang, P.; Song, D.; Wu, Y.: Understanding an enriched multidimensional user relevance model by analyzing query logs (2017) 0.03
    0.032775383 = product of:
      0.13110153 = sum of:
        0.13110153 = weight(_text_:personalized in 3961) [ClassicSimilarity], result of:
          0.13110153 = score(doc=3961,freq=2.0), product of:
            0.27847424 = queryWeight, product of:
              7.1017675 = idf(docFreq=98, maxDocs=44218)
              0.039211962 = queryNorm
            0.47078514 = fieldWeight in 3961, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              7.1017675 = idf(docFreq=98, maxDocs=44218)
              0.046875 = fieldNorm(doc=3961)
      0.25 = coord(1/4)
    
    Abstract
    Modeling multidimensional relevance in information retrieval (IR) has attracted much attention in recent years. However, most existing studies are conducted through relatively small-scale user studies, which may not reflect a real-world and natural search scenario. In this article, we propose to study the multidimensional user relevance model (MURM) on large scale query logs, which record users' various search behaviors (e.g., query reformulations, clicks and dwelling time, etc.) in natural search settings. We advance an existing MURM model (including five dimensions: topicality, novelty, reliability, understandability, and scope) by providing two additional dimensions, that is, interest and habit. The two new dimensions represent personalized relevance judgment on retrieved documents. Further, for each dimension in the enriched MURM model, a set of computable features are formulated. By conducting extensive document ranking experiments on Bing's query logs and TREC session Track data, we systematically investigated the impact of each dimension on retrieval performance and gained a series of insightful findings which may bring benefits for the design of future IR systems.
  2. Zhu, Q.; Kong, X.; Hong, S.; Li, J.; He, Z.: Global ontology research progress : a bibliometric analysis (2015) 0.00
    0.0046957894 = product of:
      0.018783158 = sum of:
        0.018783158 = product of:
          0.037566315 = sum of:
            0.037566315 = weight(_text_:22 in 2590) [ClassicSimilarity], result of:
              0.037566315 = score(doc=2590,freq=4.0), product of:
                0.1373136 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.039211962 = queryNorm
                0.27358043 = fieldWeight in 2590, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2590)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    20. 1.2015 18:30:22
    17. 9.2018 18:22:23
  3. Lin, X.; Li, J.; Zhou, X.: Theme creation for digital collections (2008) 0.00
    0.004648594 = product of:
      0.018594377 = sum of:
        0.018594377 = product of:
          0.037188753 = sum of:
            0.037188753 = weight(_text_:22 in 2635) [ClassicSimilarity], result of:
              0.037188753 = score(doc=2635,freq=2.0), product of:
                0.1373136 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.039211962 = queryNorm
                0.2708308 = fieldWeight in 2635, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2635)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  4. Li, J.; Shi, D.: Sleeping beauties in genius work : when were they awakened? (2016) 0.00
    0.0039845095 = product of:
      0.015938038 = sum of:
        0.015938038 = product of:
          0.031876076 = sum of:
            0.031876076 = weight(_text_:22 in 2647) [ClassicSimilarity], result of:
              0.031876076 = score(doc=2647,freq=2.0), product of:
                0.1373136 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.039211962 = queryNorm
                0.23214069 = fieldWeight in 2647, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2647)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    22. 1.2016 14:13:32
  5. Zheng, R.; Li, J.; Chen, H.; Huang, Z.: ¬A framework for authorship identification of online messages : writing-style features and classification techniques (2006) 0.00
    0.0033204246 = product of:
      0.013281698 = sum of:
        0.013281698 = product of:
          0.026563397 = sum of:
            0.026563397 = weight(_text_:22 in 5276) [ClassicSimilarity], result of:
              0.026563397 = score(doc=5276,freq=2.0), product of:
                0.1373136 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.039211962 = queryNorm
                0.19345059 = fieldWeight in 5276, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5276)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    22. 7.2006 16:14:37