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[AutoML] If first three iterations all fail, short-circuit AutoML experiment #3591

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Merged
daholste merged 3 commits into from
Apr 26, 2019
Merged

[AutoML] If first three iterations all fail, short-circuit AutoML experiment #3591

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c14a367
If first three iterations all fail, short-circuit AutoML experiment
daholste Apr 25, 2019
931631a
throw exception if first 3 runs failed
daholste Apr 26, 2019
1530f08
rev error message
daholste Apr 26, 2019
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6 changes: 6 additions & 0 deletions src/Microsoft.ML.Auto/Experiment/Experiment.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,12 @@ public IList<TRunDetail> Execute()
break;
}

// If after third run, all runs have failed so far, break
if (_history.Count() == 3 && _history.All(r => !r.RunSucceded))
{
break;

@vinodshanbhag vinodshanbhag Apr 26, 2019

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throw

@daholste daholste Apr 26, 2019

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you're right -- thanks!

}

} while (_history.Count < _experimentSettings.MaxModels &&
!_experimentSettings.CancellationToken.IsCancellationRequested &&
stopwatch.Elapsed.TotalSeconds < _experimentSettings.MaxExperimentTimeInSeconds);
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