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authorNathan Cassereau <84033440+ncassereau-idris@users.noreply.github.com>2021-11-17 11:16:24 +0100
committerGitHub <noreply@github.com>2021-11-17 11:16:24 +0100
commite235b08c2ac86f75b6c1b8e96e503305aa0449e1 (patch)
tree8699a99ef206f38cf4d6673b25f100441fa9cf32 /ot/optim.py
parentf4b363d865a79c07248176c1e36990e0cb6814ea (diff)
[MRG] SinkhornL1L2Transport bug (#312)
* solve bug * Linesearch no longer return None as alpha, only 0
Diffstat (limited to 'ot/optim.py')
-rw-r--r--ot/optim.py10
1 files changed, 5 insertions, 5 deletions
diff --git a/ot/optim.py b/ot/optim.py
index bd8ca26..cacec53 100644
--- a/ot/optim.py
+++ b/ot/optim.py
@@ -77,10 +77,12 @@ def line_search_armijo(f, xk, pk, gfk, old_fval,
alpha, phi1 = scalar_search_armijo(
phi, phi0, derphi0, c1=c1, alpha0=alpha0)
- # scalar_search_armijo can return alpha > 1
- if alpha is not None:
+ if alpha is None:
+ return 0., fc[0], phi0
+ else:
+ # scalar_search_armijo can return alpha > 1
alpha = min(1, alpha)
- return alpha, fc[0], phi1
+ return alpha, fc[0], phi1
def solve_linesearch(cost, G, deltaG, Mi, f_val,
@@ -273,8 +275,6 @@ def cg(a, b, M, reg, f, df, G0=None, numItermax=200, numItermaxEmd=100000,
# line search
alpha, fc, f_val = solve_linesearch(cost, G, deltaG, Mi, f_val, reg=reg, M=M, Gc=Gc, **kwargs)
- if alpha is None:
- alpha = 0.0
G = G + alpha * deltaG