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Machine Learning by Tutorials

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  • Platform iOS 12
  • Language Swift 5
  • Editor Xcode 10

The best book on machine learning for iOS.

Covers CoreML, Vison, image and sequence classifiers, natural language processing, and more.

Developer Guide


For Beginner Developers

Get started with Machine Learning for Apple and iOS!

Want to know a secret? Machine learning isn't really that hard to learn. The truth is, you don't need a PhD from a prestigious university or a background in mathematics to do machine learning. If you already know how to code, you can pick up machine learning quite easily — promise!

This book will get you started with machine learning on iOS and Apple devices. The first bit is a gentle introduction to the world of machine learning and what it has to offer — as well as what its limitations are. In the rest of the book, you'll look at each of these topics in more detail, until you know enough to make machine learning a useful tool in your software development toolbox.

There are now several high-level Apple frameworks, including Natural Language, Speech, and Vision, that provide advanced machine learning functionality behind simple APIs as part of Apple's iOS tooling. Whether you want to convert speech to text, recognize language or grammatical structure, detect faces in photos or track moving objects in video, these frameworks have got you covered.

In this book, you'll learn how to use these tools and frameworks to make your apps smarter. Even better, you'll learn how machine learning works behind the scenes — and why this technology is awesome.

This book is for all Apple and iOS developers who are interested in learning how to train models, code image recognition systems, learn how natural language processing works, build sequence classifiers and more.

Table of Contents

Section I: Machine Learning with Images


Machine Learning, iOS & You

In this introduction chapter, you’ll learn what machine learning is all about. You’ll touch on everything from, the difference between supervised and unsupervised learning, to what transfer learning is. You’ll even go over the ethics of machine learning, and how bias can affect models.


Getting Started with Image Classification

In this chapter, you’ll build your first iOS app by adding a CoreML model to detect whether a snack is healthy or unhealthy. You’ll focus on how machine learning can be used to solve classification problems such as trying to identify what an object might be.


Training the Image Classifier

In this chapter, you’ll start to build your first machine learning model using Create ML. You’ll be introduced to the dataset used to create the model, along with how Create ML uses transfer learning to get amazing classification results. Moreover, you’ll learn what it means to evaluate the performance of your model.


Getting Started with Python & Turi Create

In this chapter, you’ll get a quick primer on Python. You’ll learn how to setup your Python environment using Conda, and how to install external libraries. You’ll learn how to run and use Jupyter notebooks to iterate quickly with Python.


Digging Deeper Into Turi Create

In this chapter, you’ll learn to use Turi Create to build a classification model. You’ll use the snacks dataset to create your model. You’ll learn how to analyze your model’s performance, and how to go under the hood with Turi Create in order to improve your model.


Taking Control of Training with Keras

In this chapter, you’ll learn to how to take control of your model’s training with Keras. You’ll design your first neural network, and how to pass your dataset into Keras for training.


Going Convolutional

In this chapter, you’ll learn why a simple neural network might not be enough when it comes to solving problems with images using machine learning. You’ll learn about how using a convolutional neural network provides a better approach to solving classification problems.


Advanced Convolutional Neural Networks

In this chapter, you’ll learn about advanced model architectures used for solving image classification. You’ll learn how you can use Keras to do transfer learning, and how applying advanced techniques such as dropout and regularization can improve your model’s performance.


Beyond Classification

In this chapter, you’ll learn how to identify an object’s location in an image. You’ll learn how to build a simple localization model that predicts a single bounding box.


YOLO & Semantic Segmentation

In this final chapter, you’ll learn about some advanced localization models. You’ll learn about one-shot detectors like YOLO and SSD and how they can be used to identify multiple objects in an image. You’ll also learn about how machine learning can be used for segmentation to separate an object from its background.

Section II: Machine Learning with Sequences


Data Collection for Sequence Classification

In this chapter, you’ll learn how working with sequences differs from working with discrete data like individual images. You’ll learn how to collect iPhone sensor data, as well as what it takes to build a good training dataset.


Training a Model for Sequence Classification - New

In this chapter, you’ll learn about neural networks designed to work with sequences. You’ll also learn how to use Turi Create to train an activity classification model using data from the previous chapter.


Sequence Classification - New

In this chapter, you’ll learn how to pass real-time sequential data captured from a device’s motion sensors into your Core ML model. You’ll learn some tricks to help keep your apps responsive and accurate while processing sequences of streaming data.

Section III: Natural Language Processing


Natural Language Classification - New

In this chapter, you’ll learn how to use Apple’s Natural Language framework to handle several useful text-related tasks. You’ll explore this API in the context of a movie review app that supports multiple languages.


Natural Language Transformation - Part 1 - New

In this chapter, you’ll learn about sequence-to-sequence models and how you can use them to do things like language translation. You’ll build a model with Keras that attempts to translate Spanish-language movie reviews into English.


Natural Language Transformation - Part 2 - New

This chapter introduces additional techniques you can use to improve the performance of your sequence-to-sequence models.

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Machine Learning by Tutorials

The best book on machine learning for iOS.

Covers CoreML, Vison, image and sequence classifiers, natural language processing, and more.