An Empirical Evaluation of the Interactive Visualization of Metadata to Support Document Use
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Digital Libraries currently focus on delivering documents. Since information needs are often satisfied at the sub-document level, digital libraries should explore ways to support document use as well as retrieval. This paper describes the design and initial evaluation of a technology being developed for document use. It uses interactive visualization of paragraph level metadata to allow rapid goal-directed search and navigation within documents. An experimental evaluation of a prototype’s performance on representative work tasks is described. Quantitative analysis finds that the prototype does not increase performance. However, qualitative analysis of the data suggests that there is room for performance improvements and has inspired design changes to realize this potential.
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