An Augmented Visual Query Mechanism for Finding Patterns in Time Series Data

  • Authors:
  • Eamonn J. Keogh;Harry Hochheiser;Ben Shneiderman

  • Affiliations:
  • -;-;-

  • Venue:
  • FQAS '02 Proceedings of the 5th International Conference on Flexible Query Answering Systems
  • Year:
  • 2002

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Abstract

Relatively few query tools exist for data exploration and pattern identification in time series data sets. In previous work we introduced Time-boxes. Timeboxes are rectangular, direct-manipulation queries for studying time-series datasets. We demonstrated how Timeboxes can be used to support interactive exploration via dynamic queries, along with overviews of query results and drag-and-drop support for query-by-example. In this paper, we extend our work by introducing Variable Time Timeboxes (VTT). VTTs are a natural generalization of Timeboxes, which permit the specification of queries that allow a degree of uncertainty in the time axis. We carefully motivate the need for these more expressive queries, and demonstrate the utility of our approach on several data sets.