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fix issue #2718 from model builder #6768

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Jul 24, 2023
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fix issue #2718 from model builder #6768

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4 changes: 4 additions & 0 deletions src/Microsoft.ML.AutoML/AutoMLExperiment/Runner/SweepablePipelineRunner.cs
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Expand Up @@ -45,6 +45,10 @@ public TrialResult Run(TrialSettings settings)
var models = new List<ITransformer>();
foreach (var split in datasetSplit)
{
// a work-around to fix issue https://github.com/dotnet/machinelearning-modelbuilder/issues/2718
// where the root cause is the shape of deep learning model is determined by the first time when this model is trained
// therefore, the deep learning model can't be retrained using the same pipeline
mlnetPipeline = _pipeline.BuildFromOption(_mLContext, parameter);
var model = mlnetPipeline.Fit(split.TrainSet);
var eval = model.Transform(split.TestSet);
metrics.Add(_metricManager.Evaluate(_mLContext, eval));
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