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math.OC2020
Hessian approximations
Warren Hare, Gabriel Jarry-Bolduc, Chayne Planiden
This work introduces the nested-set Hessian approximation, a second-order approximation method that can be used in any derivative-free optimization routine that requires such infor…
math.OC2020
A deterministic algorithm to compute the cosine measure of a finite positive spanning set
Warren Hare, Gabriel Jarry-Bolduc
Originally developed in 1954, positive bases and positive spanning sets have been found to be a valuable concept in derivative-free optimization (DFO). The quality of a positive ba…