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Using BacktrackingLineSearch the algorithm does one history reset as well but calculates the correct result:
18:39:51.826 [main] ERROR breeze.optimize.LBFGS - Failure! Resetting history: breeze.optimize.NaNHistory:
Minimum = -172681.50132468613
So I probably made some mistake while porting or the problem posed somehow results in an edge-case situation that the StrongWolfeLineSearch does not handle fully yet.
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Hi Anthony,
if you send me the code I can try to integrate it into breeze. If it's already written in Scala it shouldn't be that hard.
Best regards
Martin