TaoTermL1SetEpsilon

Set an \(\epsilon\) smoothing parameter.

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoTermL1SetEpsilon(TaoTerm term, PetscReal epsilon)

Logically collective

Input Parameters

• term - a TaoTerm of type TAOTERML1

• epsilon - a real number \(\geq 0\)

Options Database Keys

• -tao_term_l1_epsilon - \(\epsilon\)

If \(\epsilon = 0\) (the default), then term computes \(\|x - p\|_1\), but if \(\epsilon > 0\), then it computes \(\sum_{i=0}^{n-1} \left(\sqrt{(x_i-p_i)^2 + \epsilon^2} - \epsilon\right)\).

See Also

TaoTerm: composable objective function terms, TaoTerm, TAOTERML1, TaoTermL1GetEpsilon()

Level

advanced

Location

src/tao/term/impls/l1/taoterml1.c

Implementations

TaoTermL1SetEpsilon_L1() in src/tao/term/impls/l1/taoterml1.c

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