subdifferential

English

Etymology

From sub- +‎ differential.

Noun

subdifferential (plural subdifferentials)

1. (mathematics) subderivative
   • 2015, Amin Jalali, Lin Xiao, Maryam Fazel, “Variational Gram Functions: Convex Analysis and Optimization”, in arXiv‎^[1]:

     We give a characterization of the associated subdifferential and the proximal operator, and discuss efficient optimization algorithms for some structured regularized loss-minimization problems using VGFs.