Search (7 results, page 1 of 1)

  • × author_ss:"Jacob, E.K."
  • × year_i:[2000 TO 2010}
  1. Ding, Y.; Jacob, E.K.; Zhang, Z.; Foo, S.; Yan, E.; George, N.L.; Guo, L.: Perspectives on social tagging (2009) 0.08 
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    Abstract
    Social tagging is one of the major phenomena transforming the World Wide Web from a static platform into an actively shared information space. This paper addresses various aspects of social tagging, including different views on the nature of social tagging, how to make use of social tags, and how to bridge social tagging with other Web functionalities; it discusses the use of facets to facilitate browsing and searching of tagging data; and it presents an analogy between bibliometrics and tagometrics, arguing that established bibliometric methodologies can be applied to analyze tagging behavior on the Web. Based on the Upper Tag Ontology (UTO), a Web crawler was built to harvest tag data from Delicious, Flickr, and YouTube in September 2007. In total, 1.8 million objects, including bookmarks, photos, and videos, 3.1 million taggers, and 12.1 million tags were collected and analyzed. Some tagging patterns and variations are identified and discussed.
    Theme
    Social tagging
  2. Jacob, E.K.: ¬The everyday world of work : two approaches to the investigation of classification in context (2001) 0.01 
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    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. Jacob, E.K.: Augmenting human capabilities : classification as cognitive scaffolding (2003) 0.01 
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    Abstract
    The argument presented here seeks to extend the notion of the classification scheme as a culturally-transmitted tool by emphasizing the cognitive value of the scheme's internal patterns of relationship. lt elaborates an the use of classification as cognitive scaffolding (Jacob, 2001) and amplifies this idea through application of three constructs - constraints, selections and expectations - derived from Luhmann's (1995) theory of social systems.
  4. Tennis, J.T.; Jacob, E.K.: Toward a theory of structure in information organization frameworks (2008) 0.01 
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    Theme
    Social tagging
  5. George, N.L.; Jacob, E.K.; Guo, L.; Hajibayova, L.; Chuttur, M.Y.: ¬A case study of tagging patterns in del.icio.us (2008) 0.01 
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    Theme
    Social tagging
  6. Hert, C.A.; Jacob, E.K.; Dawson, P.: ¬A usability assessment of online indexing structures in the networked environment (2000) 0.01 
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    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
  7. Jacob, E.K.: ¬The legacy of pragmatism : implications for knowledge organization in a pluralistic universe (2000) 0.01 
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    Pages
    S.16-22

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