Title
Improved Complexity for Maximum Volume Inscribed Ellipsoids
Abstract
Let ${\cal P}=\{x \,\vert\, Ax\le b\}$, where A is an m × n matrix. We assume that ${\cal P}$ contains a ball of radius one centered at the origin and is itself contained in a ball of radius R centered at the origin. We consider the problem of approximating the maximum volume ellipsoid inscribed in ${\cal P}$. Such ellipsoids have a number of interesting applications, including the inscribed ellipsoid method for convex optimization. We describe an optimization algorithm that obtains an ellipsoid whose volume is at least a factor $e^{-\epsilon}$ of the maximum possible in $O(m^{3.5}\ln(mR/\epsilon))$ operations. Our result provides an alternative to a saddlepoint-based approach with the same complexity, developed by Nemirovskii. We also show that a further reduction in complexity can be obtained by first computing an approximation of the analytic center of ${\cal P}$.
Year
DOI
Venue
2002
10.1137/S1052623401390902
SIAM Journal on Optimization
Keywords
Field
DocType
optimization algorithm,n matrix,maximum volume,cal p,maximum volume ellipsoid,inscribed ellipsoid method,radius r,improved complexity,convex optimization,saddlepoint-based approach,inscribed ellipsoids,analytic center,interesting application
Discrete mathematics,Ellipsoid,Mathematical optimization,Matrix (mathematics),Inscribed figure,Optimization algorithm,Ellipsoid method,Convex optimization,Mathematics
Journal
Volume
Issue
ISSN
13
2
1052-6234
Citations 
PageRank 
References 
6
1.71
5
Authors
1
Name
Order
Citations
PageRank
Kurt M. Anstreicher163386.40