dotnet/machinelearning

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ML.NET is an open source and cross-platform machine learning framework for .NET.

Stars: 9.4k
Forks: 2k
Open beginner issues: 0
Indexed issues: 738
Avg merge: 2d 20h
Merged PRs (30d): 11

Dominant language: C#
License: MIT
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

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738 open issues indexed

Docker issue with TensorFlow inception_v3.meta model Open

area-Vision needs-author-action

dotnet/machinelearning#5083 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
[DataFrame] LoadCsv throws IndexOutOfRangeException Open

area-DataFrame

dotnet/machinelearning#5654 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
[DataFrame] Product, Min, Max Aggregations returning 0 on GroupBy Open

area-DataFrame

dotnet/machinelearning#5704 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Add line limit to readMultilines in TextLoader Open

area-Core enhancement Priority:2 usability

dotnet/machinelearning#5144 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[feature request] Dimensionality Reduction API Open

area-Transforms enhancement Priority:2

dotnet/machinelearning#5183 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add Half support to Microsoft.Data.Analysis Open

area-DataFrame

dotnet/machinelearning#5651 · 8 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Unseen labels during retraining map to value "0", results in System.InvalidOperationException: 'No valid training instances found, all instances have missing features.' Open

area-Trainers enhancement Priority:2

dotnet/machinelearning#5214 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Retrain Custom TensorFlow Model Feature Request Open

area-TensorFlow enhancement Priority:2

dotnet/machinelearning#5215 · 3 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
DirectML support Open

area-Native enhancement Priority:2

dotnet/machinelearning#5240 · 23 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
DnnFeaturizeImage for Resnet18 should return Vector<Single, 512> instead of Vector<Single, 1, 512, 1, 1> Open

area-Vision Priority:2

dotnet/machinelearning#5254 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Request: Support Image segmentation Open

area-Vision enhancement Priority:2

dotnet/machinelearning#5276 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
No ONNX model export support for {FixedPlatt, Isotonic, Naive}CalibratorEstimator(s) Open

area-ONNX enhancement

dotnet/machinelearning#5277 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Request : Apply Lemma / stemming in FeaturizeText options Open

area-Transforms enhancement Priority:2

dotnet/machinelearning#5281 · 10 comments · 11 reactions · 0 assignees · Indexed Sep 15, 2026
ML.NET CLI support for F# Open

area-AutoML enhancement Priority:2

dotnet/machinelearning#5284 · 2 comments · 4 reactions · 0 assignees · Indexed Sep 15, 2026
Unable to load DLL 'FastTreeNative' in Azure Function Open

area-Native Priority:2

dotnet/machinelearning#5308 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
throw a more useful error if a user loads a newer model than is supported by the current ML․NET version Open

area-Core enhancement Priority:2

dotnet/machinelearning#5311 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Handle null/empty values better for training and consumption Open

area-Core

dotnet/machinelearning#5952 · 9 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
ML.NET Is unable to export model in Text format as MAML used to do Open

area-Core enhancement Priority:2

dotnet/machinelearning#5330 · 2 comments · 4 reactions · 0 assignees · Indexed Sep 15, 2026
Reenabling Analyzers rules Open

area-Infrastructure enhancement Priority:2

dotnet/machinelearning#5334 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Passing serialized TensorFlow Example to TF Serving SavedModel Open

area-TensorFlow enhancement

dotnet/machinelearning#5336 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Image classification can't run on CPU that doesn't support AVX instruction Open

area-TensorFlow enhancement Priority:2

dotnet/machinelearning#5341 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
how to retrain the image classify model incrementally? Open

area-Vision enhancement Priority:2

dotnet/machinelearning#5355 · 13 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support for FHE and SMPC Open

area-Meta enhancement Priority:2

dotnet/machinelearning#5358 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add re-training support for MatrixFactorization. Open

area-Recommender enhancement Priority:2

dotnet/machinelearning#5365 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
DataFrame.Clone should have an overload that takes an IEnumerable<int> Open

area-DataFrame

dotnet/machinelearning#5703 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
if all iterations are completed, I don't want to wait until the train-time reaches 0 Open

area-AutoML enhancement

dotnet/machinelearning#5418 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
BinaryClassification.Trainer produces System.ArgumentOutOfRangeException: 'Not large enough to hold these values. Parameter Name: destinantion Open

area-Trainers

dotnet/machinelearning#5452 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Dataframe load data from excel and query using sql Open

area-DataFrame

dotnet/machinelearning#5646 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
TimeSeries forecasting not work well Open

area-TimeSeries Priority:3 question

dotnet/machinelearning#5481 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Load Tensorflow model from stream Open

area-TensorFlow enhancement Priority:2

dotnet/machinelearning#5486 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Absorb Accord.net as a whole or in parts Open

area-Meta enhancement

dotnet/machinelearning#5501 · 0 comments · 8 reactions · 0 assignees · Indexed Sep 15, 2026
Failed to deploy ML image classification model with aspnetcore webapi: Open

area-TensorFlow

dotnet/machinelearning#5508 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Verify word embedding model downloader Open

area-Transforms enhancement good first issue help wanted Priority:2

dotnet/machinelearning#5532 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Small bug in AutoMl "Value prediction" scenario input Open

area-AutoML

dotnet/machinelearning#5536 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
SVMLightLoader Fails above 128 dense rows Open

area-Core bug Priority:1

dotnet/machinelearning#5566 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve SamplingKeyColumn documentation and usability Open

area-Core documentation help wanted usability

dotnet/machinelearning#5567 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
OMP: Error #15: Initializing libiomp5.dylib in Image Classification with AutoML Open

area-Native bug Priority:1

dotnet/machinelearning#5569 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AutoML doesn't allow ignored columns of incorrect type Open

area-AutoML bug

dotnet/machinelearning#5573 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
OVA-PriorPredictor fails Open

area-Trainers bug

dotnet/machinelearning#5575 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AutoML should skip/ignore trainers that don't work on the current machine Open

area-AutoML enhancement Priority:2

dotnet/machinelearning#5576 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Install CLI tool using nuget. Open

area-MAML question

dotnet/machinelearning#5589 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Searching for documentation on image regression Open

area-Vision question

dotnet/machinelearning#5595 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Slow inference on CPU Open

area-ONNX question

dotnet/machinelearning#5597 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Enable SDL / release tooling on ML.NET Open

area-Infrastructure

dotnet/machinelearning#5600 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Cannot use LearnerFeatureSelectionTransform due to "does not derive from 'Microsoft.ML.ITrainer" error Open

area-Transforms bug

dotnet/machinelearning#5606 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
NimbusML Archived? Open

area-Meta question

dotnet/machinelearning#5607 · 1 comment · 4 reactions · 0 assignees · Indexed Sep 15, 2026
Add missing trainers to AutoML BinaryClassificationExperiment Open

area-AutoML Priority:2

dotnet/machinelearning#5609 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Use function to create dynamic Bitmap runtime Open

area-Vision needs-author-action

dotnet/machinelearning#5610 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AutoML + Can't create PredictionEngine because of type error Open

area-AutoML Priority:2

dotnet/machinelearning#5613 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
System.OperationCanceledException after AutoML experiment Open

area-AutoML needs-author-action

dotnet/machinelearning#5620 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

dotnet/machinelearning

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