Average-case analysis of QuickSort and Binary Insertion Tree height using incompressibility |
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Authors: | Brendan Lucier Tao Jiang Ming Li |
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Affiliation: | a Department of Computer Science, University of Waterloo, Waterloo, Ont. N2L 3G1, Canada b Department of Compute Science, University of California, Riverside, CA 92521, USA |
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Abstract: | We study the Kolmogorov complexity of a Binary Insertion Tree, and present a succinct encoding scheme for Binary Insertion Trees produced from incompressible permutations. Based on the encoding scheme, we obtain a simple incompressibility argument that yields an asymptotic analysis of the average height of a Binary Insertion Tree. This argument further implies that the QuickSort algorithm sorts a permutation of n elements in Θ(nlgn) comparisons on average. |
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Keywords: | Analysis of algorithms Binary insertion trees Incompressibility Kolmogorov complexity QuickSort |
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