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Uniformly check conditions #91
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Hmm, won't this be a problem for non-smooth optimization if the gradient happens to be exactly 0 at the neighborhood of the minimum? Think of a cut-off abs function. |
What good is a line search if the search direction is the zero element ? It’ll take the exact same step whatever alpha is . |
Isn't that a sign of convergence to a local optimum point, unless I missed something? |
Exactly ? The test I’m describing here will terminate the line search immediately if the search direction is zero. |
Ah, now I think I know what you mean, it should not error of course, just stop :) |
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