194 citations · 285 across the 12 of their papers we have counts for
3 papers · 1 filter
Expected decrease for derivative-free algorithms using random subspaces
Warren Hare, Lindon Roberts, Clément W. Royer
Derivative-free algorithms seek the minimum of a given function based only on function values queried at appropriate points. Although these methods are widely used in practice, the…
Using orthogonally structured positive bases for constructing positive -spanning sets with cosine measure guarantees
Warren Hare, Gabriel Jarry-Bolduc, Sébastien Kerleau +1
Positive spanning sets span a given vector space by nonnegative linear combinations of their elements. These have attracted significant attention in recent years, owing to their ex…
A matrix algebra approach to approximate Hessians
W. Hare, G. Jarry-Bolduc, C. Planiden
This work presents a novel matrix-based method for constructing an approximation Hessian using only function evaluations. The method requires less computational power than interpol…