Search (3 results, page 1 of 1)

  • × year_i:[1990 TO 2000}
  • × author_ss:"Cole, C."
  1. Cole, C.: Activity of understanding a problem during interaction with an 'enabling' information retrieval system : modeling information flow (1999) 0.03 
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    Abstract
    This article is about the mental coding processes involved in the flow of 'information' when the user is interacting with an 'enabling' information retrieval system. An 'enabling' IR system is designed to stimulate the user's grasping towards a higher understanding of the information need / problem / task that brought the user to the IR system. C. Shannon's (1949/1959) model of the flow of information and K.R. Popper's (1975) 3 worlds concept are used to diagram the flow of information between the user and system when the user receives a stimulating massage, with particluar emphasis on the decoding and encoding operations involved as the user processes the message. The key difference between the model of information flow proposed here and the linear transmission, receiver-oriented model now in use is that we assume that users of a truly interactive, 'enabling' IR system are primarily message senders, not passive receivers of the message, because they must create a new message back to the system, absed on a reconceptualization of their information need, while they are 'online' interacting with the system
    Date
    22. 5.1999 14:51:49
  2. Kennedy, L.; Cole, C.; Carter, S.: Connecting online search strategies and information needs : a user-centered, focus-labeling approach (1997) 0.01 
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    Abstract
    When assisting undergraduate students in accessing materials, academic librarians must balance the task of conducting reference interviews with instructing students on how to use databases (OPACs, CD-ROM and online databases). Presents a method for connecting these tasks via the construction of a search strategy which is wholly dependent on the user's information needs. Using this method, the librarian assesses and explicitly labels the student's information need (using a diagnostoc tool based on Kuhlthau's and Taylor's concept of 'focus'), then assigns the most appropriate online search strategy for the satisfaction of this need
  3. Cole, C.: Shannon revisited : information in terms of uncertainty (1993) 0.01 
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    Abstract
    Shannon's theory of communication is discussed from the point of view of his concept of uncertainty. It is suggested that there are two information concepts in Shannon, two different uncertainties, and at least two different entropy concepts. Information science focuses on the uncertainty associated with the transmission of the signal rather than the uncertainty associated with the selection of a message from a set of possible messages. The author believes the latter information concept, which is from the sender's point of view, has more to say to information science about what information is than the former, which is from the receiver's point of view and is mainly concerned with 'noise' reduction

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