Book Image

Hands-On Machine Learning with C++

By : Kirill Kolodiazhnyi
Book Image

Hands-On Machine Learning with C++

By: Kirill Kolodiazhnyi

Overview of this book

C++ can make your machine learning models run faster and more efficiently. This handy guide will help you learn the fundamentals of machine learning (ML), showing you how to use C++ libraries to get the most out of your data. This book makes machine learning with C++ for beginners easy with its example-based approach, demonstrating how to implement supervised and unsupervised ML algorithms through real-world examples. This book will get you hands-on with tuning and optimizing a model for different use cases, assisting you with model selection and the measurement of performance. You’ll cover techniques such as product recommendations, ensemble learning, and anomaly detection using modern C++ libraries such as PyTorch C++ API, Caffe2, Shogun, Shark-ML, mlpack, and dlib. Next, you’ll explore neural networks and deep learning using examples such as image classification and sentiment analysis, which will help you solve various problems. Later, you’ll learn how to handle production and deployment challenges on mobile and cloud platforms, before discovering how to export and import models using the ONNX format. By the end of this C++ book, you will have real-world machine learning and C++ knowledge, as well as the skills to use C++ to build powerful ML systems.
Table of Contents (19 chapters)
1
Section 1: Overview of Machine Learning
5
Section 2: Machine Learning Algorithms
12
Section 3: Advanced Examples
15
Section 4: Production and Deployment Challenges

Initializing matrix and tensor objects from C++ data structures

There are a variety of file formats used for datasets, and not all of them might be supported by libraries. For using data from unsupported formats, we might need to write custom parsers. After we read values to regular C++ containers, we usually need to convert them into object types used in the machine learning framework we use. As an example, let's consider the case of reading matrix data from files into C++ objects.

Eigen

Using the Eigen library, we can wrap a C++ array into the Eigen::Matrix object with the Eigen::Map type. The wrapped object will behave as a standard Eigen matrix. We have to parametrize the Eigen::Map type with the type of matrix that...