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ISAAC
2004
Springer
112views Algorithms» more  ISAAC 2004»
13 years 9 months ago
Guarding Art Galleries by Guarding Witnesses
Kyung-Yong Chwa, Byung-Cheol Jo, Christian Knauer,...
ISAAC
2004
Springer
142views Algorithms» more  ISAAC 2004»
13 years 9 months ago
On Partial Lifting and the Elliptic Curve Discrete Logarithm Problem
It has been suggested that a major obstacle in finding an index calculus attack on the elliptic curve discrete logarithm problem lies in the difficulty of lifting points from elli...
Qi Cheng, Ming-Deh A. Huang
ISAAC
2004
Springer
88views Algorithms» more  ISAAC 2004»
13 years 9 months ago
On the Range Maximum-Sum Segment Query Problem
The range minimum query problem, RMQ for short, is to preprocess a sequence of real numbers A[1 . . . n] for subsequent queries of the form: “Given indices i, j, what is the ind...
Kuan-Yu Chen, Kun-Mao Chao
ISAAC
2004
Springer
102views Algorithms» more  ISAAC 2004»
13 years 9 months ago
On-Line Windows Scheduling of Temporary Items
In this paper we study on-line windows scheduling (WS) of temporary items. In a broadcasting system, there are some broadcast channels, each can broadcast one item in one time unit...
Wun-Tat Chan, Prudence W. H. Wong
ISAAC
2004
Springer
135views Algorithms» more  ISAAC 2004»
13 years 9 months ago
Geometric Optimization Problems Over Sliding Windows
Abstract. We study the problem of maintaining a (1+ )-factor approximation of the diameter of a stream of points under the sliding window model. In one dimension, we give a simple ...
Timothy M. Chan, Bashir S. Sadjad
ISAAC
2004
Springer
137views Algorithms» more  ISAAC 2004»
13 years 9 months ago
The Polymatroid Steiner Problems
The Steiner tree problem asks for a minimum cost tree spanning a given set of terminals S ⊆ V in a weighted graph G = (V, E, c), c : E → R+ . In this paper we consider a genera...
Gruia Calinescu, Alexander Zelikovsky
ISAAC
2004
Springer
87views Algorithms» more  ISAAC 2004»
13 years 9 months ago
Random Access to Advice Strings and Collapsing Results
We propose a model of computation where a Turing machine is given random access to an advice string. With random access, an advice string of exponential length becomes meaningful ...
Jin-yi Cai, Osamu Watanabe
ISAAC
2004
Springer
95views Algorithms» more  ISAAC 2004»
13 years 9 months ago
Flexibility of Steiner Trees in Uniform Orientation Metrics
Marcus Brazil, Pawel Winter, Martin Zachariasen
ISAAC
2004
Springer
103views Algorithms» more  ISAAC 2004»
13 years 9 months ago
Structural Similarity in Graphs (A Relaxation Approach for Role Assignment)
Standard methods for role assignment partition the vertex set of a graph in such a way that vertices in the same class can be considered to have equivalent roles in the graph. Seve...
Ulrik Brandes, Jürgen Lerner