Skip to content

AutoML.Net avoid empty dataset in trainValidationDatasetManager #6756

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jul 6, 2023
Merged

AutoML.Net avoid empty dataset in trainValidationDatasetManager #6756

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 9 additions & 1 deletion src/Microsoft.ML.AutoML/AutoMLExperiment/IDatasetManager.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,15 @@ public IDataView LoadTrainDataset(MLContext context, TrialSettings? settings)
var subSampleRatio = parameter.ContainsKey(_subSamplingKey) ? parameter[_subSamplingKey].AsType<double>() : 1;
if (subSampleRatio < 1.0)
{
var subSampledTrainDataset = context.Data.TakeRows(_trainDataset, (long)(subSampleRatio * _rowCount));
var count = (long)(subSampleRatio * _rowCount);
if (count <= 10)
{
// fix issue https://github.com/dotnet/machinelearning-modelbuilder/issues/2734
// take at least 10 rows to avoid empty dataset
count = 10;
}

var subSampledTrainDataset = context.Data.TakeRows(_trainDataset, count);
return subSampledTrainDataset;
}
}
Expand Down