Create intelligent features and enable new experiences for your apps by leveraging powerful on-device machine learning. Learn how to build, train, and deploy machine learning models into your iPhone, iPad, Apple Watch, and Mac apps.
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Core ML
Learn Machine Learning Course from 9+ years experienced industry experts in Delhi, Noida & Gurugram. News and Updates. I course have been upgraded to the latest version of ROS, ROS Noetic, with several new videos explaining the fundamental concepts of ROS with hands-on illustrations.It will also give you the required skills to later learn ROS2 and navigation stack, as presented in my two other courses.
Core ML delivers blazingly fast performance with easy integration of machine learning models, allowing you to build apps with intelligent new features using just a few lines of code. Easily add pre-built machine learning features into your apps using APIs powered by Core ML or use Create ML for more flexibility and train custom Core ML models right on your Mac. You can also convert models from other training libraries using Core ML Converters or download ready-to-use Core ML models.
Machine Learning APIs
Bring on-device machine learning features, like object detection in images and video, language analysis, and sound classification, to your app with just a few lines of code.
Vision
Build features that can process and analyze images and video using computer vision.
Natural Language
Process and make sense of text in different ways, like embedding or classifying words.
Speech
Take advantage of speech recognition and saliency features for a variety of languages.
Sound
Analyze audio and recognize it as a particular type, such as laughter or applause.
Create ML
Create ML lets you quickly build and train Core ML models right on your Mac with no code. The easy-to-use app interface and models available for training make the process easier than ever, so all you need to get started is your training data. You can even take control of the training process with features like snapshots and previewing to help you visualize model training and accuracy.
Models
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Download models that have been converted to the Core ML format and are ready to be integrated into your app.
Resources
Access tools like Core ML Converters that let you convert a model to Core ML from another format.
< Back to Our BlogEvery company is sucking up data scientists and machine learning engineers. You usually hear that serious machine learning needs a beefy computer and a high-end Nvidia graphics card. While that might have been true a few years ago, Apple has been stepping up its machine learning game quite a bit. Let’s take a look at where machine learning is on macOS now and what we can expect soon.
2019 Started Strong
More Cores, More Memory
The new MacBook Pro’s 6 cores and 32 GB of memory make on-device machine learning faster than ever.
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Depending on the problem you are trying to solve, you might not be using the GPU at all. Scikit-learn and some others only support the CPU, with no plans to add GPU support.
eGPU Support
If you are in the domain of neural networks or other tools that would benefit from GPU, macOS Mojave brought good news: It added support for external graphics cards (eGPUs).
(Well, for some. macOS only supports AMD eGPUs. This won’t let you use Nvidia’s parallel computing platform CUDA. Nvidia have stepped into the gap to try to provide eGPU macOS drivers, but they are slow to release updates for new versions of macOS, and those drivers lack Apple’s support.)
Neural Engine
2018’s iPhones and new iPad Pro run on the A12 and A12X Bionic chips, which include an 8-core Neural Engine. Apple has opened the Neural Engine to third-party developers. The Neural Engine runs Metal and Core ML code faster than ever, so on-device predictions and computer vision work better than ever. This makes on-device machine learning usable where it wouldn’t have been before.
Experience Report
I have been doing neural network training on my 2017 MacBook Pro using an external AMD Vega Frontier Edition graphics card. I have been amazed at macOS’s ability to get the most out of this card.
PlaidML
To put this to work, I relied on Intel’s PlaidML. PlaidML supports Nvidia, AMD, and Intel GPUs. In May 2018, it even added support for Metal. I have taken Keras code written to be executed on top of TensorFlow, changed Keras’s backend to be PlaidML, and, without any other changes, I was now training my network on my Vega chipset on top of Metal, instead of OpenCL.
What about Core ML?
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Why didn’t I just use Core ML, an Apple framework that also uses Metal? Because Core ML cannot train models. Once you have a trained model, though, Core ML is the right tool to run them efficiently on device and with great Xcode integration.
Metal
GPU programming is not easy. CUDA makes managing stuff like migrating data from CPU memory to GPU memory and back again a bit easier. Metal plays much the same role: Based on the code you ask it to execute, Metal selects the processor best-suited for the job, whether the CPU, GPU, or, if you’re on an iOS device, the Neural Engine. Metal takes care of sending memory and work to the best processor.
Many have mixed feelings about Metal. But my experience using it for machine learning left me entirely in love with the framework. I discovered Metal inserts a bit of Apple magic into the mix.
When training a neural network, you have to pick the batch size, and your system’s VRAM limits this. The number also changes based on the data you’re processing. With CUDA and OpenCL, your training run will crash with an “out of memory” error if it turns out to be too big for your VRAM.
When I got to 99.8% of my GPU’s available 16GB of RAM, my model wasn’t crashing under Metal the way it did under OpenCL. Instead, my Python memory usage jumped from 8GB to around 11GB.
When I went over the VRAM size, Metal didn’t crash. Instead, it started using RAM.
This VRAM management is pretty amazing.
While using RAM is slower than staying in VRAM, it beats crashing, or having to spend thousands of dollars on a beefier machine.
Training on My MBP
The new MacBook Pro’s Vega GPU has only 4GB of VRAM. Metal’s ability to transparently switch to RAM makes this workable.
I have yet to have issues loading models, augmenting data, or training complex models. I have done all of these using my 2017 MacBook Pro with an eGPU.
I ran a few benchmarks in training the “Hello World” of computer vision, the MNIST dataset. The test was to do 3 epochs of training:
- TensorFlow running on the CPU took about 130 seconds an epoch: 1 hour total.
- The Radeon Pro 560 built into the computer could do one epoch in about 47 seconds: 25 minutes total.
- My AMD Vega Frontier Edition eGPU with Metal was clocking in at about 25 seconds: 10 minutes total.
You’ll find a bit more detail in the table below.
3 Epochs training run of the MNIST dataset on a simple Neural Network
| Average per Epoch | Total | Configuration |
|---|---|---|
| 130.3s | 391s | TensorFlow on Intel CPU |
| 47.6s | 143s | Metal on Radeon Pro 560 (Mac’s Built in GPU) |
| 42.0s | 126s | OpenCL on Vega Frontier Edition |
| 25.6s | 77s | Metal on Vega Frontier Edition |
| N/A | N/A | Metal on Intel Graphics HD (crashed – feature was experimental) |
Looking Forward
Thanks to Apple’s hard work, macOS Machine Learning is only going to get better. Learning speed will increase, and tools will improve.
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TensorFlow on Metal
Apple announced at their WWDC 2018 State of the Union that they are working with Google to bring TensorFlow to Metal. I was initially just excited to know TensorFlow would soon be able to do GPU programming on the Mac. However, knowing what Metal is capable of, I can’t wait for the release to come out some time in Q1 of 2019. Factor in Swift for TensorFlow, and Apple are making quite the contribution to Machine Learning.
Create ML
Not all jobs require low-level tools like TensorFlow and scikit-learn. Apple released Create ML this year. It is currently limited to only a few kinds of problems, but it has made making some models for iOS so easy that, with a dataset in hand, you can have a model on your phone in no time.
Turi Create
Create ML is not Apple’s only project. Turi Create provides a bit more control than Create ML, but it still doesn’t require the in-depth knowledge of Neural Networks that TensorFlow would need. Turi Create is well-suited to many kinds of machine learning problems. It does a lot with transfer learning, which works well for smaller startups that need accurate models but lack the data needed to fine-tune a model. Version 5 added GPU support for a few of its models. They say more will support GPUs soon.
Unfortunately, my experience with Turi Create was marred by lots of bugs and poor documentation. I eventually abandonded it to build Neural Networks directly with Keras. But Turi Create continues to improve, and I’m very excited to see where it is in a few years.
Conclusion
It’s an exciting time to get started with Machine Learning on macOS. Tools are getting better all the time. You can use tools like Keras on top of PlaidML now, and TensorFlow is expected to come to Metal later this quarter (2019Q1). There are great eGPU cases on the market, and high-end AMD GPUs have flooded the used market thanks to the crypto crash.
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