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» New primal-dual algorithms for Steiner tree problems
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FOCS
2005
IEEE
14 years 3 months ago
How to Pay, Come What May: Approximation Algorithms for Demand-Robust Covering Problems
Robust optimization has traditionally focused on uncertainty in data and costs in optimization problems to formulate models whose solutions will be optimal in the worstcase among ...
Kedar Dhamdhere, Vineet Goyal, R. Ravi, Mohit Sing...
ICALP
2010
Springer
14 years 3 months ago
Network Design via Core Detouring for Problems without a Core
Some of the currently best-known approximation algorithms for network design are based on random sampling. One of the key steps of such algorithms is connecting a set of source nod...
Fabrizio Grandoni, Thomas Rothvoß
SODA
2010
ACM
178views Algorithms» more  SODA 2010»
14 years 7 months ago
Tree Embeddings for Two-Edge-Connected Network Design
The group Steiner problem is a classical network design problem where we are given a graph and a collection of groups of vertices, and want to build a min-cost subgraph that conne...
Anupam Gupta, Ravishankar Krishnaswamy, R. Ravi
ICCAD
1998
IEEE
81views Hardware» more  ICCAD 1998»
14 years 2 months ago
A simultaneous routing tree construction and fanout optimization algorithm
- This paper presents an optimal algorithm for solving the problem of simultaneous fanout optimization and routing tree construction for an ordered set of critical sinks. The algor...
Amir H. Salek, Jinan Lou, Massoud Pedram
APPROX
2005
Springer
136views Algorithms» more  APPROX 2005»
14 years 3 months ago
What About Wednesday? Approximation Algorithms for Multistage Stochastic Optimization
The field of stochastic optimization studies decision making under uncertainty, when only probabilistic information about the future is available. Finding approximate solutions to...
Anupam Gupta, Martin Pál, R. Ravi, Amitabh ...