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From takuti <>
Subject [GitHub] incubator-hivemall issue #87: [HIVEMALL-108] Support `-iter` option in gener...
Date Tue, 04 Jul 2017 06:17:40 GMT
Github user takuti commented on the issue:
    @myui That's why I repeatedly tried a wide variety of combinations and finally found `-lambda
1e-6 -tol 1e-3f -iter 512` leads successful. 
    What `-tol` did is to compare the absolute difference between the last and current cumulative
loss; that is, the initial implementation checked convergence based on **absolute difference**.
Meanwhile, `-cv_rate` looks **relative difference**. Hence, in a precise sense, your commit
feb9bb132afb8d81357f43cf2ee2d94f6e0aa9b6 is not "refactor," and I need to find a completely
different optimal combination of hyper-parameters for testing.

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