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Wildemuth, B.M.; Jacob, E.K.; Fullington, A.;; Bliek, R. de; Friedman, C.P.: ¬A detailed analysis of end-user search behaviours (1991)
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- Abstract
- Search statements in this revision process can be viewed as a 'move' in the overall search strategy. Very little is known about how end users develop and revise their search strategies. A study was conducted to analyse the moves made in 244 data base searches conducted by 26 medical students at the University of North Carolina at Chapel Hill. Students search INQUIRER, a data base of facts and concepts in microbiology. The searches were conducted during a 3-week period in spring 1990 and were recorded by the INQUIRER system. Each search statement was categorised, using Fidel's online searching moves (S. Online review 9(1985) S.61-74) and Bates' search tactics (s. JASIS 30(1979) S.205-214). Further analyses indicated that the most common moves were Browse/Specity, Select Exhaust, Intersect, and Vary, and that selection of moves varied by student and by problem. Analysis of search tactics (combinations of moves) identified 5 common search approaches. The results of this study have implcations for future research on search behaviours, for thedesign of system interfaces and data base structures, and for the training of end users
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Beebe, C.; Jacob, E.K.: Graphic language documents : structures and functions (1998)
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- Abstract
- This paper proposes to explore the nature of graphic language documents from the contrasting perspectives of structure and function -- from the perspectives of the document's structure as a spatially-oriented object. Using design principles derived from Gestalt theory and the Bauhaus concept that form (or structure) follows function, the paper addresses the relationship that exists between structure and function in the broad domain of graphic language documents
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Jacob, E.K.: ¬The structure of context : implications of structure for the creation of context in information systems (2004)
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- 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.
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Jacob, E.K.; Albrechtsen, H.: When essence becomes function : post-structuralist implications for an ecological theory of organizational classification systems (1999)
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Jacob, E.K.; Priss, U.: Nontraditional indexing structures for the management of electronic resources (2001)
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- Abstract
- Controlled vocabulary and fixed citation order are two of the mechanisms used to effect collocation in traditional bibliographic classification schemes. Analysis of the rationale underlying application of each of these mechanisms provides a framework for the development of nontraditional approaches to the organization of resources available an the World Wide Web. When supported by an extralinguistic faceted vocabulary of concepts, this framework facilitates construction and implementation of flexible, dynamic indexing systems that can be applied in the design of electronic information systems and the organization of Web-based knowledge resources.
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Jacob, E.K.: Augmenting human capabilities : classification as cognitive scaffolding (2003)
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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.
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Jacob, E.K.: ¬The everyday world of work : two approaches to the investigation of classification in context (2001)
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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.
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Ding, Y.; Jacob, E.K.; Fried, M.; Toma, I.; Yan, E.; Foo, S.; Milojevicacute, S.: Upper tag ontology for integrating social tagging data (2010)
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Hajibayova, L.; Jacob, E.K.: Factors influencing user-generated vocabularies : how basic are basic level terms? (2015)
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