Spatiotemporal windows in InfoSphere

fig2Peter implemented polygonal, extent-based spatial windows in InfoSphere Streams (see below). The spatial window can be easily combined with a temporal window to create a spatiotemporal window. Peter is testing several spatial interpolation methods (IDW, natural neighborhood, thin plate spline, and kriging) to interpolate a temperature surface within the spatial window from simulated massive scattered data. The efficiency and accuracy of different interpolation methods under different configurations of spatiotemporal window is being compared.

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