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» Approximating Node-Connectivity Augmentation Problems
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FSTTCS
2009
Springer
15 years 4 months ago
Iterative Methods in Combinatorial Optimization
We describe a simple iterative method for proving a variety of results in combinatorial optimization. It is inspired by Jain’s iterative rounding method (FOCS 1998) for designing...
R. Ravi
93
Voted
PVLDB
2008
174views more  PVLDB 2008»
14 years 9 months ago
Relaxation in text search using taxonomies
In this paper we propose a novel document retrieval model in which text queries are augmented with multi-dimensional taxonomy restrictions. These restrictions may be relaxed at a ...
Marcus Fontoura, Vanja Josifovski, Ravi Kumar, Chr...
ICALP
2010
Springer
15 years 2 months ago
Thresholded Covering Algorithms for Robust and Max-min Optimization
The general problem of robust optimization is this: one of several possible scenarios will appear tomorrow, but things are more expensive tomorrow than they are today. What should...
Anupam Gupta, Viswanath Nagarajan, R. Ravi
WEA
2005
Springer
93views Algorithms» more  WEA 2005»
15 years 3 months ago
From Static Code Distribution to More Shrinkage for the Multiterminal Cut
We present the problem of statically distributing instructions of a common programming language, a problem which we prove equivalent to the multiterminal cut problem. We design eï¬...
Bram De Wachter, Alexandre Genon, Thierry Massart
89
Voted
ESANN
2008
14 years 11 months ago
Multilayer Perceptrons with Radial Basis Functions as Value Functions in Reinforcement Learning
Using multilayer perceptrons (MLPs) to approximate the state-action value function in reinforcement learning (RL) algorithms could become a nightmare due to the constant possibilit...
Victor Uc Cetina