diff --git a/dotnet/xml/ns-Microsoft.ML.Calibrators.xml b/dotnet/xml/ns-Microsoft.ML.Calibrators.xml
index 42bb60839..6c8057d50 100644
--- a/dotnet/xml/ns-Microsoft.ML.Calibrators.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Calibrators.xml
@@ -1,8 +1,10 @@
- Namespace containing estimators and transformers that take as input the output scores of binary classifiers,
- and calibrate them to produce a probability distribution.
+ Namespace containing components for binary classification calibration.
+
+ These components calculate probabilities from scores, for binary classifiers.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.Data.xml b/dotnet/xml/ns-Microsoft.ML.Data.xml
index 34f77e7c2..976d7dbfb 100644
--- a/dotnet/xml/ns-Microsoft.ML.Data.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Data.xml
@@ -1,5 +1,7 @@
- Namespace containing data loading, data definition and data saving capabilities.
+
+ Namespace containing data loading and saving, data schema definitions, and model training metrics components.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.Runtime.xml b/dotnet/xml/ns-Microsoft.ML.Runtime.xml
index 1a1d55066..647a07bb2 100644
--- a/dotnet/xml/ns-Microsoft.ML.Runtime.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Runtime.xml
@@ -1,6 +1,7 @@
- To be added.
- To be added.
+
+ Namespace containing types needed by the ML.NET runtime.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.SamplesUtils.xml b/dotnet/xml/ns-Microsoft.ML.SamplesUtils.xml
index bc6619d73..e0013530a 100644
--- a/dotnet/xml/ns-Microsoft.ML.SamplesUtils.xml
+++ b/dotnet/xml/ns-Microsoft.ML.SamplesUtils.xml
@@ -1,8 +1,10 @@
- Namespace containing utilities to download and featurize datasets for the API reference samples.
- It is part of the Microsoft.ML.SampleUtils nuget package.
+ Namespace containing utilities to download and featurize datasets for the API reference samples.
+
+ Included in the Microsoft.ML.SampleUtils nuget package.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.Trainers.FastTree.xml b/dotnet/xml/ns-Microsoft.ML.Trainers.FastTree.xml
index 667a44cb3..97948f761 100644
--- a/dotnet/xml/ns-Microsoft.ML.Trainers.FastTree.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Trainers.FastTree.xml
@@ -1,5 +1,5 @@
- Namespace containing estimators, model parameters and other utilities related to the Fast Tree group of trainers.
+ Namespace containing trainers, model parameters, and utilities for Fast Tree algorithms.
diff --git a/dotnet/xml/ns-Microsoft.ML.Trainers.LightGbm.xml b/dotnet/xml/ns-Microsoft.ML.Trainers.LightGbm.xml
index 8af084e27..c9227c064 100644
--- a/dotnet/xml/ns-Microsoft.ML.Trainers.LightGbm.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Trainers.LightGbm.xml
@@ -1,7 +1,10 @@
- Namespace containing the various LightGBM trainers.
- This namespace is contained in the Microsoft.ML.LightGBM nuget package.
+
+ Namespace containing trainers, model parameters, and utilities for LightGBM algorithms.
+
+ Included in the Microsoft.ML.LightGbm nuget package.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.Trainers.Recommender.xml b/dotnet/xml/ns-Microsoft.ML.Trainers.Recommender.xml
index cbe27d789..52a2d2ffe 100644
--- a/dotnet/xml/ns-Microsoft.ML.Trainers.Recommender.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Trainers.Recommender.xml
@@ -1,7 +1,7 @@
- Namespace containing estimators and transformers to perform recommendation.
+ Namespace containing trainers, model parameters, and utilities for recommendation.
diff --git a/dotnet/xml/ns-Microsoft.ML.Trainers.xml b/dotnet/xml/ns-Microsoft.ML.Trainers.xml
index ab188c8dd..65e2ec218 100644
--- a/dotnet/xml/ns-Microsoft.ML.Trainers.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Trainers.xml
@@ -1,7 +1,7 @@
- The namespace containing the algorithms used for training a
- machine learning model.
+
+ Namespace containing trainers, model parameters, and utilities.
diff --git a/dotnet/xml/ns-Microsoft.ML.Transforms.Image.xml b/dotnet/xml/ns-Microsoft.ML.Transforms.Image.xml
index bf363c65e..1d9e6c7ff 100644
--- a/dotnet/xml/ns-Microsoft.ML.Transforms.Image.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Transforms.Image.xml
@@ -1,8 +1,10 @@
- Namespace containing image loading and transformation capabilities.
- It is contained in the Microsoft.ML.ImageAnalytics nuget package.
+ Namespace containing image loading and transformation components.
+
+ Contained in the Microsoft.ML.ImageAnalytics nuget package.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.Transforms.Onnx.xml b/dotnet/xml/ns-Microsoft.ML.Transforms.Onnx.xml
index 69715c9c8..fba587ef3 100644
--- a/dotnet/xml/ns-Microsoft.ML.Transforms.Onnx.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Transforms.Onnx.xml
@@ -1,6 +1,7 @@
- To be added.
- To be added.
+
+ Namespace containing ONNX model loading and transformation components.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.Transforms.TensorFlow.xml b/dotnet/xml/ns-Microsoft.ML.Transforms.TensorFlow.xml
index 579c3c148..a03d9d5da 100644
--- a/dotnet/xml/ns-Microsoft.ML.Transforms.TensorFlow.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Transforms.TensorFlow.xml
@@ -1,8 +1,7 @@
- The namespace containing the data transformations wrapping tensorflow
- so it can be used as an estimator in ML.NET.
+ Namespace containing tensorflow model loading and transformation components.
diff --git a/dotnet/xml/ns-Microsoft.ML.Transforms.Text.xml b/dotnet/xml/ns-Microsoft.ML.Transforms.Text.xml
index 821290d82..4b82b43ef 100644
--- a/dotnet/xml/ns-Microsoft.ML.Transforms.Text.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Transforms.Text.xml
@@ -1,5 +1,7 @@
- The namespace containing the various data transformations for text datasets.
+
+ Namespace containing text data transformation components.
+
diff --git a/dotnet/xml/ns-Microsoft.ML.Transforms.TimeSeries.xml b/dotnet/xml/ns-Microsoft.ML.Transforms.TimeSeries.xml
index 28b229784..d081522fa 100644
--- a/dotnet/xml/ns-Microsoft.ML.Transforms.TimeSeries.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Transforms.TimeSeries.xml
@@ -1,7 +1,7 @@
- A set of time series transfomer, estimator and their utilities,
- used for anomaly detection.
+
+ Namespace containing time-series data transformation components.
diff --git a/dotnet/xml/ns-Microsoft.ML.Transforms.xml b/dotnet/xml/ns-Microsoft.ML.Transforms.xml
index 438d787a2..a27886726 100644
--- a/dotnet/xml/ns-Microsoft.ML.Transforms.xml
+++ b/dotnet/xml/ns-Microsoft.ML.Transforms.xml
@@ -1,6 +1,7 @@
- The namespace containing the various data transformations for text and numerical datasets.
+
+ Namespace containing data transformation components.
diff --git a/dotnet/xml/ns-Microsoft.ML.xml b/dotnet/xml/ns-Microsoft.ML.xml
index 341fb4ddc..77a7ed869 100644
--- a/dotnet/xml/ns-Microsoft.ML.xml
+++ b/dotnet/xml/ns-Microsoft.ML.xml
@@ -1,5 +1,7 @@
- The main namespace for ML.NET
+
+ The main namespace for ML.NET. Contains application and operation contexts, transformer and trainer catalogs, and components for data view processing.
+