%0 Journal Article %J Institute for Systems Research Technical Reports %D 2005 %T An Augmented Visual Query Mechanism for Finding Patterns in Time Series Data (2002) %A Keogh,Eamonn %A Hochheiser,Harry %A Shneiderman, Ben %K Technical Report %X Relatively few query tools exist for data exploration and pattern identification in time series data sets. In previous work we introduced Timeboxes. 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. %B Institute for Systems Research Technical Reports %8 2005/// %G eng %U http://drum.lib.umd.edu/handle/1903/6495