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- W1512590959 abstract "Given a set S of n geq d points in general position in R^d, a random hyperplane split is obtained by sampling d points uniformly at random without replacement from S and splitting based on their affine hull. A random hyperplane search tree is a binary space partition tree obtained by recursive application of random hyperplane splits. We investigate the structural distributions of such random trees with a particular focus on the growth with d. A blessing of dimensionality arises--as d increases, random hyperplane splits more closely resemble perfectly balanced splits; in turn, random hyperplane search trees more closely resemble perfectly balanced binary search trees. We prove that, for any fixed dimension d, a random hyperplane search tree storing n points has height at most (1 + O(1/sqrt(d))) log_2 n and average element depth at most (1 + O(1/d)) log_2 n with high probability as n rightarrow infty. Further, we show that these bounds are asymptotically optimal with respect to d." @default.
- W1512590959 created "2016-06-24" @default.
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- W1512590959 date "2011-06-02" @default.
- W1512590959 modified "2023-09-27" @default.
- W1512590959 title "Random hyperplane search trees in high dimensions" @default.
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