Kinder, gentler average-case analysis for convex hulls and maximal vectors

Author:

Dwyer Rex A.1

Affiliation:

1. North Carolina State University

Abstract

While the derivations of precise asymptotic estimates found in the mathematical literature are not easily accessible to the non-specialist, there are rather simple arguments for deriving rougher "big-theta" bounds on the expected size of random convex hulls. These arguments are presented, then applied to verify a recently published conjecture on the expected number of maximal vectors among a set of random points chosen from a ball. A summary of recent progress follows. Results relevant for analyzing algorithms are emphasized.

Publisher

Association for Computing Machinery (ACM)

Reference21 articles.

1. F. Affentranger and J . A. Wieacker . On the convex hull of uniform random points in a simple d-polytope . Discrete and Computational Geometry to appear .

2. I . Barany. Intrinsic volumes and f-vectors of random polytopes . manuscript 1989 .

3. Convex bodies, economic cap coverings, random polytopes

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2. Unoriented $Theta$-Maxima in the Plane: Complexity and Algorithms;SIAM Journal on Computing;1998-01

3. A provably fast linear-expected-time maxima-finding algorithm;Algorithmica;1994-06

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