| Abstract | The next generation of database management, directory browsing,information retrieval, hypermedia, scientific data management, and library
systems can enable convenient exploration of growing information spaces by
a wider range of users. User interface designers can provide more
powerful search techniques, more comprehensible query facilities, better
presentation methods, and smoother integration of technology with task.
This paper offers novel graphical and direct manipulation approaches to
query formulation and information presentation/manipulation. These
approaches include a graphical approach to restricted boolean query
formulation based on generalization/aggregation hierarchies, a filter/flow
metaphor for complete boolean expressions, dynamic query methods with
continuous visual presentation of results as the query is changed
(possibly employing parallel computation), and color-coded 2-dimensional
space-filling tree-maps that present multiple-level hierarchies in a
single display (hundreds of directories and more than a thousand files can
be seen at once).
(Also cross-referenced as CAR-TR-577)
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