diff --git a/src/Microsoft.ML.Data/Transforms/ColumnCopying.cs b/src/Microsoft.ML.Data/Transforms/ColumnCopying.cs
index bc681c5dbb..bd08e9c211 100644
--- a/src/Microsoft.ML.Data/Transforms/ColumnCopying.cs
+++ b/src/Microsoft.ML.Data/Transforms/ColumnCopying.cs
@@ -49,7 +49,6 @@ namespace Microsoft.ML.Transforms
/// ]]>
///
///
- ///
///
public sealed class ColumnCopyingEstimator : TrivialEstimator
{
diff --git a/src/Microsoft.ML.Data/Transforms/ValueMapping.cs b/src/Microsoft.ML.Data/Transforms/ValueMapping.cs
index a9c07decd6..8bab27f412 100644
--- a/src/Microsoft.ML.Data/Transforms/ValueMapping.cs
+++ b/src/Microsoft.ML.Data/Transforms/ValueMapping.cs
@@ -160,8 +160,6 @@ public sealed override SchemaShape GetOutputSchema(SchemaShape inputSchema)
///
/// Specifies the key type.
/// Specifies the value type.
- ///
- ///
///
public sealed class ValueMappingEstimator : ValueMappingEstimator
{
diff --git a/src/Microsoft.ML.Transforms/RandomFourierFeaturizing.cs b/src/Microsoft.ML.Transforms/RandomFourierFeaturizing.cs
index 44cc3564ca..4dc0637eaa 100644
--- a/src/Microsoft.ML.Transforms/RandomFourierFeaturizing.cs
+++ b/src/Microsoft.ML.Transforms/RandomFourierFeaturizing.cs
@@ -622,7 +622,6 @@ private void TransformFeatures(in VBuffer src, ref VBuffer dst, Tr
/// Check the See Also section for links to usage examples.
/// ]]>
///
- ///
///
public sealed class ApproximatedKernelMappingEstimator : IEstimator
{