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STACS
2005
Springer
14 years 6 months ago
Worst-Case and Average-Case Approximations by Simple Randomized Search Heuristics
Abstract. In recent years, probabilistic analyses of algorithms have received increasing attention. Despite results on the average-case complexity and smoothed complexity of exact ...
Carsten Witt
STACS
2005
Springer
14 years 6 months ago
Dynamic Complexity Theory Revisited
Dynamic complexity investigates the required effort to maintain knowledge about a property of a structure under changing operations. This article introduces a refined notion of ...
Volker Weber, Thomas Schwentick
STACS
2005
Springer
14 years 6 months ago
How Common Can Be Universality for Cellular Automata?
Abstract. We address the problem of the density of intrinsically universal cellular automata among cellular automata or a subclass of cellular automata. We show that captive cellul...
Guillaume Theyssier
STACS
2005
Springer
14 years 6 months ago
Exact Quantum Algorithms for the Leader Election Problem
Abstract. It is well-known that no classical algorithm can solve exactly (i.e., in bounded time without error) the leader election problem in anonymous networks. This paper propose...
Seiichiro Tani, Hirotada Kobayashi, Keiji Matsumot...
STACS
2005
Springer
14 years 6 months ago
Algorithmics in Exponential Time
Exponential algorithms, i.e. algorithms of complexity O(cn ) for some c > 1, seem to be unavoidable in the case of NP-complete problems (unless P=NP), especially if the problem ...
Uwe Schöning
STACS
2005
Springer
14 years 6 months ago
Improving the Alphabet-Size in High Noise, Almost Optimal Rate List Decodable Codes
We revisit the construction of high noise, almost optimal rate list decodable code of Guruswami [1]. Guruswami showed that if one can explicitly construct optimal extractors then o...
Eran Rom, Amnon Ta-Shma
STACS
2005
Springer
14 years 6 months ago
Cellular Automata: Real-Time Equivalence Between One-Dimensional Neighborhoods
Abstract. It is well known that one-dimensional cellular automata working on the usual neighborhood are Turing complete, and many acceleration theorems are known. However very litt...
Victor Poupet
STACS
2005
Springer
14 years 6 months ago
Kolmogorov-Loveland Randomness and Stochasticity
An infinite binary sequence X is Kolmogorov-Loveland (or KL) random if there is no computable non-monotonic betting strategy that succeeds on X in the sense of having an unbounde...
Wolfgang Merkle, Joseph S. Miller, André Ni...
STACS
2005
Springer
14 years 6 months ago
Cost Sharing and Strategyproof Mechanisms for Set Cover Games
Abstract. We develop for set cover games several general cost-sharing methods that are approximately budget-balanced, core, and/or group-strategyproof. We first study the cost sha...
Xiang-Yang Li, Zheng Sun, Weizhao Wang
STACS
2005
Springer
14 years 6 months ago
A Polynomial Time Algorithm for Minimum Cycle Basis in Directed Graphs
Abstract. We consider the problem of computing a minimum cycle basis in a directed graph G with m arcs and n vertices. The arcs of G have non-negative weights assigned to them. We ...
Telikepalli Kavitha, Kurt Mehlhorn