Central Swaths (A Generalization of the Central Path)

Details Central Swaths (A Generalization of the Central Path) Central Swaths (A Generalization of the Central Path)

2010-05-30

arxiv.org/abs/1005.5495v2

Mathematics

Optimization and Control

Scientific paper

We develop a natural generalization to the notion of the central path -- a notion that lies at the heart of interior-point methods for convex optimization. The generalization is accomplished via the "derivative cones" of a "hyperbolicity cone," the derivatives being direct and mathematically-appealing relaxations of the underlying (hyperbolic) conic constraint, be it the non-negative orthant, the cone of positive semidefinite matrices, or other. We prove that a dynamics inherent to the derivative cones generates paths always leading to optimality, the central path arising from a special case in which the derivative cones are quadratic. Derivative cones of higher degree better fit the underlying conic constraint, raising the prospect that the paths they generate lead to optimality quicker than the central path.

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