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ISAAC
2004
Springer
112views Algorithms» more  ISAAC 2004»
14 years 24 days ago
Guarding Art Galleries by Guarding Witnesses
Kyung-Yong Chwa, Byung-Cheol Jo, Christian Knauer,...
ISAAC
2004
Springer
142views Algorithms» more  ISAAC 2004»
14 years 24 days 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»
14 years 24 days 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»
14 years 24 days 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»
14 years 24 days 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»
14 years 24 days 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»
14 years 24 days 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»
14 years 24 days ago
Flexibility of Steiner Trees in Uniform Orientation Metrics
Marcus Brazil, Pawel Winter, Martin Zachariasen
ISAAC
2004
Springer
103views Algorithms» more  ISAAC 2004»
14 years 24 days 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