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MP
2011
13 years 3 months ago
An FPTAS for minimizing the product of two non-negative linear cost functions
We consider a quadratic programming (QP) problem (Π) of the form min xT Cx subject to Ax ≥ b where C ∈ Rn×n + , rank(C) = 1 and A ∈ Rm×n , b ∈ Rm . We present an FPTAS ...
Vineet Goyal, Latife Genç Kaya, R. Ravi
CDC
2008
IEEE
110views Control Systems» more  CDC 2008»
13 years 10 months ago
Topological identification in networks of dynamical systems
The paper deals with the problem of reconstructing the tree-like topological structure of a network of linear dynamical systems. A distance function is defined in order to evaluat...
Donatello Materassi, Giacomo Innocenti
CORR
2011
Springer
214views Education» more  CORR 2011»
13 years 6 days ago
Convex Approaches to Model Wavelet Sparsity Patterns
Statistical dependencies among wavelet coefficients are commonly represented by graphical models such as hidden Markov trees (HMTs). However, in linear inverse problems such as d...
Nikhil S. Rao, Robert D. Nowak, Stephen J. Wright,...
CISS
2008
IEEE
14 years 3 months ago
A linear integer programming approach to analyze P2P media streaming
Recent advancement in peer-to-peer (P2P) technologies has enabled a wide range of new applications. In this paper, we present mixed integer programming (MIP) formulations to analy...
Fulu Li, Jianwei Huang, Andrew Lippman
FOCS
1992
IEEE
14 years 23 days ago
Maximizing Non-Linear Concave Functions in Fixed Dimension
Consider a convex set P in IRd and a piecewise polynomial concave function F: P IR. Let A be an algorithm that given a point x IRd computes F(x) if x P, or returns a concave po...
Sivan Toledo