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To reduce storage and computational cost for processing and visualizing large-scale 3D point clouds, an efficient resampling strategy is needed to select a representative subset of 3D points that can preserve contours in the original 3D point cloud. We tackle this problem by using graph-based techniques as graphs can represent underlying surfaces and lend themselves well to efficient computation....
Alice and Bob possess sequences x and y respectively and would like to compute the ℓ1 distance, namely || x - y ||1 under privacy and communication constraints. The privacy constraint requires that Alice and Bob do not reveal their data to each other. The communication constraint requires that they accomplish the secure distance calculation with a small number of protocol transmissions and key exchanges...
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