Search (3 results, page 1 of 1)

  • × author_ss:"Buchanan, G."
  • × year_i:[2000 TO 2010}
  1. Jones, M.; Buchanan, G.; Cheng, T.-C.; Jain, P.: Changing the pace of search : supporting background information seeking (2006) 0.02 
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    Abstract
    Almost all Web searches are carried out while the user is sitting at a conventional desktop computer connected to the Internet. Although online, handheld, mobile search offers new possibilities, the fast-paced, focused style of interaction may not be appropriate for all user search needs. The authors explore an alternative, relaxed style for Web searching that asynchronously combines an offline handheld computer and an online desktop personal computer. They discuss the role and utility of such an approach, present a tool to meet these user needs, and discuss its relation to other systems.
    Date
    22. 7.2006 18:37:49
  2. Makri, S.; Blandford, A.; Gow, J.; Rimmer, J.; Warwick, C.; Buchanan, G.: ¬A library or just another information resource? : a case study of users' mental models of taditional and digital libraries (2007) 0.01 
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    Abstract
    A user's understanding of the libraries they work in, and hence of what they can do in those libraries, is encapsulated in their "mental models" of those libraries. In this article, we present a focused case study of users' mental models of traditional and digital libraries based on observations and interviews with eight participants. It was found that a poor understanding of access restrictions led to risk-averse behavior, whereas a poor understanding of search algorithms and relevance ranking resulted in trial-and-error behavior. This highlights the importance of rich feedback in helping users to construct useful mental models. Although the use of concrete analogies for digital libraries was not widespread, participants used their knowledge of Internet search engines to infer how searching might work in digital libraries. Indeed, most participants did not clearly distinguish between different kinds of digital resource, viewing the electronic library catalogue, abstracting services, digital libraries, and Internet search engines as variants on a theme.
  3. Hinze, A.; Buchanan, G.; Bainbridge, D.; Witten, I.: Semantics in Greenstone (2009) 0.01 
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    Abstract
    This chapter illustrates the impact on a well-known digital library system Greenstone when it is moved from fixed modules and simple metadatabased structures, to open semantic digital library modules. This change has profound effects on the tools available to end-users to retrieve relevant content from the library, and an equally significant impact on the digital library (DL) architecture. Most current DL systems contain protocols for internal communication that define information exchange solely in terms of searching, browsing, and document retrieval. These communications reect traditional user interactions in the library. However, this regimented approach results in inexible systems that are difficult to extend to support other retrieval techniques. Furthermore, simple field-based metadata limits the ability of the DL to connect or disambiguate key items of information, impeding the precision of retrieval.

Authors