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COCOON
2005
Springer
15 years 3 months ago
Randomized Quicksort and the Entropy of the Random Source
Abstract. The worst-case complexity of an implementation of Quicksort depends on the random number generator that is used to select the pivot elements. In this paper we estimate th...
Beatrice List, Markus Maucher, Uwe Schöning, ...
COCOON
2005
Springer
15 years 3 months ago
Opportunistic Data Structures for Range Queries
Abstract In this paper, we study the problem of supporting range sum queries on a compressed sequence of values. For a sequence of n k-bit integers, k ≤ O(log n), our data struct...
Chung Keung Poon, Wai Keung Yiu
COCOON
2005
Springer
15 years 3 months ago
Algorithms for Terminal Steiner Trees
The terminal Steiner tree problem (TST) consists of finding a minimum cost Steiner tree where each terminal is a leaf. We describe a factor 2ρ−ρ/(3ρ−2) approximation algor...
Fábio Viduani Martinez, José Coelho ...
COCOON
2005
Springer
15 years 3 months ago
Some New Results on Inverse Sorting Problems
Abstract. In this paper, we consider two types of inverse sorting problems. The first type is an inverse sorting problem under weighted Hamming distance with bound constraints, wh...
Xiaoguang Yang, Jianzhong Zhang 0001
CPM
2005
Springer
87views Combinatorics» more  CPM 2005»
15 years 3 months ago
Two Dimensional Parameterized Matching
Two equal length strings, or two equal sized two-dimensional texts, parameterize match (p-match) if there is a one-one mapping (relative to the alphabet) of their characters. Two-...
Carmit Hazay, Moshe Lewenstein, Dekel Tsur