Search (7 results, page 1 of 1)

  • × theme_ss:"Informetrie"
  • × theme_ss:"Internet"
  1. Menczer, F.: Lexical and semantic clustering by Web links (2004) 0.03
    0.027950348 = product of:
      0.055900697 = sum of:
        0.055900697 = product of:
          0.11180139 = sum of:
            0.11180139 = weight(_text_:light in 3090) [ClassicSimilarity], result of:
              0.11180139 = score(doc=3090,freq=2.0), product of:
                0.2920221 = queryWeight, product of:
                  5.7753086 = idf(docFreq=372, maxDocs=44218)
                  0.050563898 = queryNorm
                0.3828525 = fieldWeight in 3090, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.7753086 = idf(docFreq=372, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3090)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Recent Web-searching and -mining tools are combining text and link analysis to improve ranking and crawling algorithms. The central assumption behind such approaches is that there is a correiation between the graph structure of the Web and the text and meaning of pages. Here I formalize and empirically evaluate two general conjectures drawing connections from link information to lexical and semantic Web content. The link-content conjecture states that a page is similar to the pages that link to it, and the link-cluster conjecture that pages about the same topic are clustered together. These conjectures are offen simply assumed to hold, and Web search tools are built an such assumptions. The present quantitative confirmation sheds light an the connection between the success of the latest Web-mining techniques and the small world topology of the Web, with encouraging implications for the design of better crawling algorithms.
  2. Thelwall, M.: Webometrics (2009) 0.03
    0.027950348 = product of:
      0.055900697 = sum of:
        0.055900697 = product of:
          0.11180139 = sum of:
            0.11180139 = weight(_text_:light in 3906) [ClassicSimilarity], result of:
              0.11180139 = score(doc=3906,freq=2.0), product of:
                0.2920221 = queryWeight, product of:
                  5.7753086 = idf(docFreq=372, maxDocs=44218)
                  0.050563898 = queryNorm
                0.3828525 = fieldWeight in 3906, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.7753086 = idf(docFreq=372, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3906)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Webometrics is an information science field concerned with measuring aspects of the World Wide Web (WWW) for a variety of information science research goals. It came into existence about five years after the Web was formed and has since grown to become a significant aspect of information science, at least in terms of published research. Although some webometrics research has focused on the structure or evolution of the Web itself or the performance of commercial search engines, most has used data from the Web to shed light on information provision or online communication in various contexts. Most prominently, techniques have been developed to track, map, and assess Web-based informal scholarly communication, for example, in terms of the hyperlinks between academic Web sites or the online impact of digital repositories. In addition, a range of nonacademic issues and groups of Web users have also been analyzed.
  3. Thelwall, M.; Ruschenburg, T.: Grundlagen und Forschungsfelder der Webometrie (2006) 0.01
    0.013701421 = product of:
      0.027402842 = sum of:
        0.027402842 = product of:
          0.054805685 = sum of:
            0.054805685 = weight(_text_:22 in 77) [ClassicSimilarity], result of:
              0.054805685 = score(doc=77,freq=2.0), product of:
                0.17706616 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050563898 = queryNorm
                0.30952093 = fieldWeight in 77, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=77)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    4.12.2006 12:12:22
  4. Zhang, Y.: ¬The impact of Internet-based electronic resources on formal scholarly communication in the area of library and information science : a citation analysis (1998) 0.01
    0.01211046 = product of:
      0.02422092 = sum of:
        0.02422092 = product of:
          0.04844184 = sum of:
            0.04844184 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
              0.04844184 = score(doc=2808,freq=4.0), product of:
                0.17706616 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050563898 = queryNorm
                0.27358043 = fieldWeight in 2808, 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=2808)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    30. 1.1999 17:22:22
  5. Neth, M.: Citation analysis and the Web (1998) 0.01
    0.011988743 = product of:
      0.023977486 = sum of:
        0.023977486 = product of:
          0.047954973 = sum of:
            0.047954973 = weight(_text_:22 in 108) [ClassicSimilarity], result of:
              0.047954973 = score(doc=108,freq=2.0), product of:
                0.17706616 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050563898 = queryNorm
                0.2708308 = fieldWeight in 108, 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=108)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    10. 1.1999 16:22:37
  6. Tonta, Y.: Scholarly communication and the use of networked information sources (1996) 0.01
    0.010276065 = product of:
      0.02055213 = sum of:
        0.02055213 = product of:
          0.04110426 = sum of:
            0.04110426 = weight(_text_:22 in 6389) [ClassicSimilarity], result of:
              0.04110426 = score(doc=6389,freq=2.0), product of:
                0.17706616 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050563898 = queryNorm
                0.23214069 = fieldWeight in 6389, 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=6389)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    IFLA journal. 22(1996) no.3, S.240-245
  7. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.01
    0.010276065 = product of:
      0.02055213 = sum of:
        0.02055213 = product of:
          0.04110426 = sum of:
            0.04110426 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
              0.04110426 = score(doc=2742,freq=2.0), product of:
                0.17706616 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050563898 = queryNorm
                0.23214069 = fieldWeight in 2742, 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=2742)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 17:49:11

Languages