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Studies have shown that cognitive styles have some impacts on user performance in various types of systems. The current study focused on the effects of cognitive styles on users' information‐seeking task performance between an information visualization system and a generic information system. Thirty‐two graduate students participated in a controlled laboratory experiment. Each of them completed an...
This study investigated the effect of visualization on user performance of information systems by comparing an information visualization system with a textual based system. The results indicate that the difference is significant in terms of task completion time, user satisfaction, and total number of mouse clicks.
Users of digital libraries and other information systems typically carry out searches with very short queries, on the order of two words or so. This makes it very difficult for the systems to disambiguate their queries and identify potentially relevant documents, resulting in sub‐optimal retrieval performance. We hypothesize that users will provide better and more useful descriptions of their information...
We report findings that help us better understand the difficulty of tasks which involve information seeking, retrieving, gathering, and use. We examined the data gathered from two interactive information retrieval user studies on how users' perception of task difficulty changes before and after searching for information to solve tasks, and how the difficulty of tasks relates with users' background,...
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