Efficient MaxCount and threshold operators of moving objects
Geoinformatica
Efficient traffic crash and snow complaint GIS system
Proceedings of the 12th Annual International Digital Government Research Conference: Digital Government Innovation in Challenging Times
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An approximate count of the number of (1) k-dimensional rectangles that contain, overlap or are within a query rectangle Q, and (2) linearly moving points that are to the left of a moving query point Q on the x-axis at time t, can be found in (poly)-logarithmic time in the number of rectangles or moving points.