Search (5 results, page 1 of 1)

  • × author_ss:"Nicholas, D."
  • × theme_ss:"Internet"
  1. Nicholas, D.; Rowlands, I.: ¬The Internet : its impact and evaluation (2000) 0.01 
    0.014418405 = product of:
  0.02883681 = sum of:
    0.02883681 = product of:
      0.05767362 = sum of:
        0.05767362 = weight(_text_:m in 5654) [ClassicSimilarity], result of:
          0.05767362 = score(doc=5654,freq=2.0), product of:
            0.13110629 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.052685954 = queryNorm
            0.4398997 = fieldWeight in 5654, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.125 = fieldNorm(doc=5654)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Type
    m
  2. Nicholas, D.: Assessing information needs : tools, techniques and concepts for the Internet age (2000) 0.01 
    0.012616104 = product of:
  0.025232209 = sum of:
    0.025232209 = product of:
      0.050464418 = sum of:
        0.050464418 = weight(_text_:m in 4594) [ClassicSimilarity], result of:
          0.050464418 = score(doc=4594,freq=2.0), product of:
            0.13110629 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.052685954 = queryNorm
            0.38491225 = fieldWeight in 4594, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.109375 = fieldNorm(doc=4594)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Type
    m
  3. Huntington, P.; Nicholas, D.; Jamali, H.R.: Website usage metrics : a re-assessment of session data (2008) 0.01 
    0.008554382 = product of:
  0.017108764 = sum of:
    0.017108764 = product of:
      0.06843506 = sum of:
        0.06843506 = weight(_text_:authors in 2040) [ClassicSimilarity], result of:
          0.06843506 = score(doc=2040,freq=4.0), product of:
            0.24018547 = queryWeight, product of:
              4.558814 = idf(docFreq=1258, maxDocs=44218)
              0.052685954 = queryNorm
            0.28492588 = fieldWeight in 2040, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.558814 = idf(docFreq=1258, maxDocs=44218)
              0.03125 = fieldNorm(doc=2040)
      0.25 = coord(1/4)
  0.5 = coord(1/2)
    Abstract
    Metrics derived from user visits or sessions provide a means of evaluating Websites and an important insight into online information seeking behaviour, the most important of them being the duration of sessions and the number of pages viewed in a session, a possible busyness indicator. However, the identification of session (termed often 'sessionization') is fraught with difficulty in that there is no way of determining from a transactional log file that a user has ended their session. No one logs out. Instead a session delimiter has to be applied and this is typically done on the basis of a standard period of inactivity. To date researchers have discussed the issue of a time out delimiter in terms of a single value and if a page view time exceeds the cut-off value the session is deemed to have ended. This approach assumes that page view time is a single distribution and that the cut-off value is one point on that distribution. The authors however argue that page time distribution is composed of a number of quite separate view time distributions because of the marked differences in view times between pages (abstract, contents page, full text). This implies that a number of timeout delimiters should be applied. Employing data from a study of the OhioLINK digital journal library, the authors demonstrate how the setting of a time out delimiter impacts on the estimate of page view time and the number of estimated session. Furthermore, they also show how a number of timeout delimiters might apply and they argue that this gives a better and more robust estimate of the number of sessions, session time and page view time compared to an application of a single timeout delimiter.
  4. Nicholas, D.: Assessing information needs : tools, techniques and concepts for the Internet age (2000) 0.01 
    0.0054069017 = product of:
  0.010813803 = sum of:
    0.010813803 = product of:
      0.021627607 = sum of:
        0.021627607 = weight(_text_:m in 1745) [ClassicSimilarity], result of:
          0.021627607 = score(doc=1745,freq=2.0), product of:
            0.13110629 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.052685954 = queryNorm
            0.1649624 = fieldWeight in 1745, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.046875 = fieldNorm(doc=1745)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Type
    m
  5. Rowlands, I.; Nicholas, D.; Williams, P.; Huntington, P.; Fieldhouse, M.; Gunter, B.; Withey, R.; Jamali, H.R.; Dobrowolski, T.; Tenopir, C.: ¬The Google generation : the information behaviour of the researcher of the future (2008) 0.00 
    0.0045057517 = product of:
  0.009011503 = sum of:
    0.009011503 = product of:
      0.018023007 = sum of:
        0.018023007 = weight(_text_:m in 2017) [ClassicSimilarity], result of:
          0.018023007 = score(doc=2017,freq=2.0), product of:
            0.13110629 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.052685954 = queryNorm
            0.13746867 = fieldWeight in 2017, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2017)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Authors

Types

Themes

Subjects