Issue No. 03 - March (2013 vol. 19)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TVCG.2012.128
Tuan Nhon Dang , Dept. of Comput. Sci., Univ. of Illinois at Chicago, Chicago, IL, USA
A. Anand , Dept. of Comput. Sci., Univ. of Illinois at Chicago, Chicago, IL, USA
L. Wilkinson , Dept. of Comput. Sci., Univ. of Illinois at Chicago, Chicago, IL, USA
We introduce a method (Scagnostic time series) and an application (TimeSeer) for organizing multivariate time series and for guiding interactive exploration through high-dimensional data. The method is based on nine characterizations of the 2D distributions of orthogonal pairwise projections on a set of points in multidimensional euclidean space. These characterizations include measures, such as, density, skewness, shape, outliers, and texture. Working directly with these Scagnostic measures, we can locate anomalous or interesting subseries for further analysis. Our application is designed to handle the types of doubly multivariate data series that are often found in security, financial, social, and other sectors.
Time series analysis, Lenses, Shape, Length measurement, Employment, Density measurement, Visualization
Tuan Nhon Dang, A. Anand and L. Wilkinson, "TimeSeer: Scagnostics for High-Dimensional Time Series," in IEEE Transactions on Visualization & Computer Graphics, vol. 19, no. 3, pp. 470-483, 2013.