Search (3 results, page 1 of 1)

  • × author_ss:"Yuan, W."
  • × theme_ss:"Benutzerstudien"
  1. Marchionini, G.; Meadow, C.T.; Dwiggins, S.; Lin, X.; Jiabin, W.; Yuan, W.: ¬A study of user interaction with information retrieval interfaces : progress report (1991) 0.00 
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    Abstract
    Reports progress and future plans for a project to study the interactions of users with information retrieval interfaces. Tests are run with professional data base searchers and with end users who are members of a profession but have little or no searching experience. Interfaces tested include a command language search system used to search DIALOG bibliographic data bases, a non-procedural system that produces DIALOG commands, and several full text systems, including one using hypertext. The intent is to determine which kinds of users perform best with each type of interface. The project is being conducted jointly bay the University of Toronto and the University of Maryland
    Source
    Canadian journal of information science. 16(1991) no.4, S.42-59
  2. Yuan, W.; Meadow, C.T.: ¬A study of the use of variables in information retrieval user studies (1999) 0.00 
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    Abstract
    This article reports on an exploratory study of the measurement of commonality in the use of variables or measures by authors and groups of authors who have reported on studies of information retrieval system users. There is some similarity to co-citation analysis in that, when 2 individual papers, or 2 authors of sveral works, use the same variables, this indicates a similarity in approach to the subject. Such usage may be a stroger indication of similarity than co-citation be cause it represents what the authors did, rather than what they say
    Source
    Journal of the American Society for Information Science. 50(1999) no.2, S.140-150
  3. Yuan, W.: End-user searching behavior in information retrieval : a longitudinal study (1997) 0.00 
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    Abstract
    This study investigates the effects of end-user search experience on searching behavior in the use of an online information retrieval system by monitoring the QUICKLAW searches of a group of law students over a 1-year period. Searching behavior was examined in these aspects: Searcher command and feature repertoires (i.e., the set of commands and the set of features such as Boolean operators and truncation used), language usage patterns (command and feature use frequencies, state chains of first to third orders, and search effort measures), error patterns, search speed, learning approaches, and attitudes towards the search system. Results showed that search experience affected several aspects of end-user behavior, including the increase of participants' command and feature repertoires, some change of overall language usage patterns as reflected in the significant differences in the frequency distributions of commands and features used, increase of search speeds, and change of learning approaches. However, experience did not results in searchers making fewer errors or being helped to recover from errors
    Source
    Journal of the American Society for Information Science. 48(1997) no.3, S.218-234

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