Core ML 3 was announced at WWDC with new features for the Core ML API. The Core ML framework allows importing machine learning models in the .mlmodel format, including updates to supported model types and operations defined in protobuf files. Core ML Tools was also updated with over 3500 new models and operations supported for conversion between Core ML and other frameworks like TensorFlow and PyTorch.

1. Core ML
3
#wwdctokyo

2. Core ML

3. WWDC

5. WWDC
API

6. Core ML 3 100
• WWDC

7. Core ML

8. Core ML API

10. • CoreML.framework mlmodel iOS

11. • CoreML.framework mlmodel iOS
Core ML

12. CoreML.framework
API

13. •
•
•

15. coremltools

16. : mlmodel/format

17. • Core ML .mlmodel Protocol Buffers
• coremltools
• → mlmodel/format .proto

18. NeuralNetwork.proto
ConvolutionLayerParams convolution = 100;
PoolingLayerParams pooling = 120;
ActivationParams activation = 130;
InnerProductLayerParams innerProduct = 140;
EmbeddingLayerParams embedding = 150;
...
→

19. Model.proto
• Core ML proto
•
message Model {
int32 specificationVersion = 1;
ModelDescription description = 2;
bool isUpdatable = 10;
oneof Type {
// pipeline starts at 200
PipelineClassifier pipelineClassifier = 200;
PipelineRegressor pipelineRegressor = 201;
Pipeline pipeline = 202;
// regressors start at 300
GLMRegressor glmRegressor = 300;
...

20. examples
•
•

23. •
• API

24. Create ML Turi Create
• Create ML
• TensorFlow PyTorch
•

26. note

27. • Core ML WWDC
Core ML API
• coremltools
• Core ML .mlmodel
•

29. Core ML Tools
• 3500 1500 +
•

30. WWDC2020
• 500
•