Search (5 results, page 1 of 1)

  • × author_ss:"Li, L."
  1. Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents 0.02
    0.02001835 = product of:
      0.0800734 = sum of:
        0.0800734 = product of:
          0.2402202 = sum of:
            0.2402202 = weight(_text_:3a in 2514) [ClassicSimilarity], result of:
              0.2402202 = score(doc=2514,freq=2.0), product of:
                0.42742437 = queryWeight, product of:
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.050415643 = queryNorm
                0.56201804 = fieldWeight in 2514, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2514)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Content
    Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
  2. Li, L.; He, D.; Zhang, C.; Geng, L.; Zhang, K.: Characterizing peer-judged answer quality on academic Q&A sites : a cross-disciplinary case study on ResearchGate (2018) 0.02
    0.017121121 = product of:
      0.034242243 = sum of:
        0.017165681 = weight(_text_:information in 4637) [ClassicSimilarity], result of:
          0.017165681 = score(doc=4637,freq=8.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.19395474 = fieldWeight in 4637, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4637)
        0.01707656 = product of:
          0.03415312 = sum of:
            0.03415312 = weight(_text_:22 in 4637) [ClassicSimilarity], result of:
              0.03415312 = score(doc=4637,freq=2.0), product of:
                0.17654699 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050415643 = queryNorm
                0.19345059 = fieldWeight in 4637, 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=4637)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    Purpose Academic social (question and answer) Q&A sites are now utilised by millions of scholars and researchers for seeking and sharing discipline-specific information. However, little is known about the factors that can affect their votes on the quality of an answer, nor how the discipline might influence these factors. The paper aims to discuss this issue. Design/methodology/approach Using 1,021 answers collected over three disciplines (library and information services, history of art, and astrophysics) in ResearchGate, statistical analysis is performed to identify the characteristics of high-quality academic answers, and comparisons were made across the three disciplines. In particular, two major categories of characteristics of the answer provider and answer content were extracted and examined. Findings The results reveal that high-quality answers on academic social Q&A sites tend to possess two characteristics: first, they are provided by scholars with higher academic reputations (e.g. more followers, etc.); and second, they provide objective information (e.g. longer answer with fewer subjective opinions). However, the impact of these factors varies across disciplines, e.g., objectivity is more favourable in physics than in other disciplines. Originality/value The study is envisioned to help academic Q&A sites to select and recommend high-quality answers across different disciplines, especially in a cold-start scenario where the answer has not received enough judgements from peers.
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 70(2018) no.3, S.269-287
  3. Jeng, W.; DesAutels, S.; He, D.; Li, L.: Information exchange on an academic social networking site : a multidiscipline comparison on researchgate Q&A (2017) 0.01
    0.005255895 = product of:
      0.02102358 = sum of:
        0.02102358 = weight(_text_:information in 3431) [ClassicSimilarity], result of:
          0.02102358 = score(doc=3431,freq=12.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.23754507 = fieldWeight in 3431, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3431)
      0.25 = coord(1/4)
    
    Abstract
    The increasing popularity of academic social networking sites (ASNSs) requires studies on the usage of ASNSs among scholars and evaluations of the effectiveness of these ASNSs. However, it is unclear whether current ASNSs have fulfilled their design goal, as scholars' actual online interactions on these platforms remain unexplored. To fill the gap, this article presents a study based on data collected from ResearchGate. Adopting a mixed-method design by conducting qualitative content analysis and statistical analysis on 1,128 posts collected from ResearchGate Q&A, we examine how scholars exchange information and resources, and how their practices vary across three distinct disciplines: library and information services, history of art, and astrophysics. Our results show that the effect of a questioner's intention (i.e., seeking information or discussion) is greater than disciplinary factors in some circumstances. Across the three disciplines, responses to questions provide various resources, including experts' contact details, citations, links to Wikipedia, images, and so on. We further discuss several implications of the understanding of scholarly information exchange and the design of better academic social networking interfaces, which should stimulate scholarly interactions by minimizing confusion, improving the clarity of questions, and promoting scholarly content management.
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.3, S.638-652
  4. Jin, B.; Li, L.; Rousseau, R.: Long-term influences of interventions in the normal development of science : China and the cultural revolution (2004) 0.00
    0.0036413912 = product of:
      0.014565565 = sum of:
        0.014565565 = weight(_text_:information in 2232) [ClassicSimilarity], result of:
          0.014565565 = score(doc=2232,freq=4.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.16457605 = fieldWeight in 2232, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=2232)
      0.25 = coord(1/4)
    
    Abstract
    Intellectual and technological talents and skills are the driving force for scientific and industrial development, especially in our times characterized by a knowledgebased economy. Major events in society and related political decisions, however, can have a long-term effect an a country's scientific weIl-being. Although the Cultural Revolution took place from 1966 to 1976, its aftermath can still be felt. This is shown by this study of the production and productivity of Chinese scientists as a function of their age. Based an the 1995-2000 data from the Chinese Science Citation database (CSCD), this article investigates the year-by-year age distribution of scientific and technological personnel publishing in China. It is shown that the "Talent Fault" originating during the Cultural Revolution still exists, and that a new gap resulting from recent brain drain might be developing. The purpose of this work is to provide necessary information about the current situation and especially the existing problems of the S&T workforce in China.
    Source
    Journal of the American Society for Information Science and Technology. 55(2004) no.6, S.544-550
  5. Slota, S.C.; Fleischmann, K.R.; Greenberg, S.; Verma, N.; Cummings, B.; Li, L.; Shenefiel, C.: Locating the work of artificial intelligence ethics (2023) 0.00
    0.0025748524 = product of:
      0.01029941 = sum of:
        0.01029941 = weight(_text_:information in 899) [ClassicSimilarity], result of:
          0.01029941 = score(doc=899,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.116372846 = fieldWeight in 899, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=899)
      0.25 = coord(1/4)
    
    Source
    Journal of the Association for Information Science and Technology. 74(2023) no.3, S.311-322