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Depth-Based Local Recentering of Maxmin Landmarks for Lazy Witness Persistence

Zhang, Yifan
arXiv (All) · Papers
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combinatoricscomputational-geometry
We study a local post-processing rule for maxmin (farthest-point) landmark selection in lazy witness persistence. Maxmin landmarks induce nearest-landmark cells. Within each cell, the landmark is moved toward a data point of maximum empirical halfspace depth, with smaller moves in sparsely populated
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