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Let T be a terrain, and let P be a set of points (locations) on its surface. An important problem in Geographic Information Science (GIS) is computing the visibility index of a point p on P, that is,… (More)
XML and the XPath querying language have become ubiquitous data and querying standards used in many industrial settings and across the World-Wide Web. The high latency of XPath queries over large XML… (More)
XML and the XPath querying language are global standards that are used in industrial settings. The high latency of queries over large XML databases remains a problem for many applications. While this… (More)
Abstract The GPU is an effective architecture for sorting due to its massive parallelism and high memory bandwidth. However, for input datasets that exceed global memory capacity, the communication… (More)