matrices - How is the preconditioned conjugate gradient algorithm related to the steepest descent method? - Mathematics Stack Exchange
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There is a method to greatly simplify the preconditioned conjugate method into the steepest descent method, also known as gradient descent. I'm aware that the gradient is equal to $$2A^t(A\vec{x}
Distributed estimation over sensor networks based on distributed conjugate gradient strategies - Xu - 2016 - IET Signal Processing - Wiley Online Library
convex optimization - Conjugate gradient method on quadratic function - Mathematics Stack Exchange
Solved Use conjugate gradients on the steepest descent
Solved 1. Perform two iterations of steepest descent and
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