Search (5 results, page 1 of 1)

  • × author_ss:"Jacob, E.K."
  • × language_ss:"e"
  • × year_i:[2000 TO 2010}
  1. Jacob, E.K.: ¬The structure of context : implications of structure for the creation of context in information systems (2004) 0.10 
    0.09875835 = product of:
  0.16459724 = sum of:
    0.11181675 = weight(_text_:context in 2636) [ClassicSimilarity], result of:
      0.11181675 = score(doc=2636,freq=6.0), product of:
        0.17622331 = queryWeight, product of:
          4.14465 = idf(docFreq=1904, maxDocs=44218)
          0.04251826 = queryNorm
        0.6345174 = fieldWeight in 2636, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          4.14465 = idf(docFreq=1904, maxDocs=44218)
          0.0625 = fieldNorm(doc=2636)
    0.03727935 = weight(_text_:system in 2636) [ClassicSimilarity], result of:
      0.03727935 = score(doc=2636,freq=2.0), product of:
        0.13391352 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.04251826 = queryNorm
        0.27838376 = fieldWeight in 2636, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0625 = fieldNorm(doc=2636)
    0.015501143 = product of:
      0.04650343 = sum of:
        0.04650343 = weight(_text_:29 in 2636) [ClassicSimilarity], result of:
          0.04650343 = score(doc=2636,freq=2.0), product of:
            0.14956595 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.04251826 = queryNorm
            0.31092256 = fieldWeight in 2636, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=2636)
      0.33333334 = coord(1/3)
  0.6 = coord(3/5)
    Abstract
    Structural differences between systems of classification and categorization lead to meaningful differences in the contexts within which information can be apprehended. Examination of systemic properties, forms of interaction and functional capabilities that distinguish classification and categorization can identify the fundamental features that influence the conceptual context of an information system and contribute to its utility as a meaningful information environment.
    Date
    29. 8.2004 9:56:28
  2. Jacob, E.K.: ¬The everyday world of work : two approaches to the investigation of classification in context (2001) 0.03 
    0.032144334 = product of:
  0.08036084 = sum of:
    0.057061244 = weight(_text_:context in 4494) [ClassicSimilarity], result of:
      0.057061244 = score(doc=4494,freq=4.0), product of:
        0.17622331 = queryWeight, product of:
          4.14465 = idf(docFreq=1904, maxDocs=44218)
          0.04251826 = queryNorm
        0.32380077 = fieldWeight in 4494, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.14465 = idf(docFreq=1904, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4494)
    0.023299592 = weight(_text_:system in 4494) [ClassicSimilarity], result of:
      0.023299592 = score(doc=4494,freq=2.0), product of:
        0.13391352 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.04251826 = queryNorm
        0.17398985 = fieldWeight in 4494, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4494)
  0.4 = coord(2/5)
    Abstract
    One major aspect of T.D. Wilson's research has been his insistence on situating the investigation of information behaviour within the context of its occurrence - within the everyday world of work. The significance of this approach is reviewed in light of the notion of embodied cognition that characterises the evolving theoretical episteme in cognitive science research. Embodied cognition employs complex external props such as stigmergic structures and cognitive scaffoldings to reduce the cognitive burden on the individual and to augment human problem-solving activities. The cognitive function of the classification scheme is described as exemplifying both stigmergic structures and cognitive scaffoldings. Two different but complementary approaches to the investigation of situated cognition are presented: cognition-as-scaffolding and cognition-as-infrastructure. Classification-as-scaffolding views the classification scheme as a knowledge storage device supporting and promoting cognitive economy. Classification-as-infrastructure views the classification system as a social convention that, when integrated with technological structures and organisational practices, supports knowledge management work. Both approaches are shown to build upon and extend Wilson's contention that research is most productive when it attends to the social and organisational contexts of cognitive activity by focusing on the everyday world of work.
  3. Hert, C.A.; Jacob, E.K.; Dawson, P.: ¬A usability assessment of online indexing structures in the networked environment (2000) 0.02 
    0.020057717 = product of:
  0.100288585 = sum of:
    0.100288585 = weight(_text_:index in 5158) [ClassicSimilarity], result of:
      0.100288585 = score(doc=5158,freq=10.0), product of:
        0.18579477 = queryWeight, product of:
          4.369764 = idf(docFreq=1520, maxDocs=44218)
          0.04251826 = queryNorm
        0.5397815 = fieldWeight in 5158, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          4.369764 = idf(docFreq=1520, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5158)
  0.2 = coord(1/5)
    Abstract
    Usability of Web sites has become an increasingly important area of research as Web sites proliferate and problems with use are noted. Generally, aspects of Web sites that have been investigated focus on such areas as overall design and navigation. The exploratory study reported on here investigates one specific component of a Web site-the index structure. By employing index usability metrics developed by Liddy and Jörgensen (1993; Jörgensen & Liddy, 1996) and modified to accommodate a hypertext environment, the study compared the effectiveness and efficiency of 20 subjects who used one existing index (the A-Z index on the FedStats Web site at http://www.fedstats.gov) and three experimental variants to complete five researcher-generated tasks. User satisfaction with the indexes was also evaluated. The findings indicate that a hypertext index with multiple access points for each concept, all linked to the same resource, led to greater effectiveness and efficiency of retrieval on almost all measures. Satisfaction measures were more variable. The study offers insight into potential improvements in the design of Web-based indexes and provides preliminary assessment of the validity of the measures employed
  4. Jacob, E.K.: Classification and categorization : a difference that makes a difference (2004) 0.01 
    0.006523886 = product of:
  0.03261943 = sum of:
    0.03261943 = weight(_text_:system in 834) [ClassicSimilarity], result of:
      0.03261943 = score(doc=834,freq=2.0), product of:
        0.13391352 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.04251826 = queryNorm
        0.2435858 = fieldWeight in 834, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0546875 = fieldNorm(doc=834)
  0.2 = coord(1/5)
    Abstract
    Examination of the systemic properties and forms of interaction that characterize classification and categorization reveals fundamental syntactic differences between the structure of classification systems and the structure of categorization systems. These distinctions lead to meaningful differences in the contexts within which information can be apprehended and influence the semantic information available to the individual. Structural and semantic differences between classification and categorization are differences that make a difference in the information environment by influencing the functional activities of an information system and by contributing to its constitution as an information environment.
  5. Jacob, E.K.: ¬The legacy of pragmatism : implications for knowledge organization in a pluralistic universe (2000) 0.00 
    0.0026882975 = product of:
  0.013441487 = sum of:
    0.013441487 = product of:
      0.04032446 = sum of:
        0.04032446 = weight(_text_:22 in 119) [ClassicSimilarity], result of:
          0.04032446 = score(doc=119,freq=2.0), product of:
            0.1488917 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04251826 = queryNorm
            0.2708308 = fieldWeight in 119, 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=119)
      0.33333334 = coord(1/3)
  0.2 = coord(1/5)
    Pages
    S.16-22

Authors

Themes