Book Image

Machine Learning for Developers

By : Rodolfo Bonnin, Md Mahmudul Hasan
Book Image

Machine Learning for Developers

By: Rodolfo Bonnin, Md Mahmudul Hasan

Overview of this book

Most of us have heard about the term Machine Learning, but surprisingly the question frequently asked by developers across the globe is, “How do I get started in Machine Learning?”. One reason could be attributed to the vastness of the subject area because people often get overwhelmed by the abstractness of ML and terms such as regression, supervised learning, probability density function, and so on. This book is a systematic guide teaching you how to implement various Machine Learning techniques and their day-to-day application and development. You will start with the very basics of data and mathematical models in easy-to-follow language that you are familiar with; you will feel at home while implementing the examples. The book will introduce you to various libraries and frameworks used in the world of Machine Learning, and then, without wasting any time, you will get to the point and implement Regression, Clustering, classification, Neural networks, and more with fun examples. As you get to grips with the techniques, you’ll learn to implement those concepts to solve real-world scenarios for ML applications such as image analysis, Natural Language processing, and anomaly detections of time series data. By the end of the book, you will have learned various ML techniques to develop more efficient and intelligent applications.

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Table of Contents (10 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
Introduction - Machine Learning and Statistical Science
Introduction - Machine Learning and Statistical Science
Machine learning in the bigger picture
Tools of the trade–programming language and libraries
Basic mathematical concepts
Summary
2
The Learning Process
The Learning Process
Understanding the problem
Dataset definition and retrieval
Feature engineering
Dataset preprocessing
Model definition
Loss function definition
Model fitting and evaluation
Model implementation and results interpretation
Summary
References
3
Clustering
Clustering
Grouping as a human activity
Automating the clustering process
Finding a common center - K-means
Nearest neighbors
K-NN sample implementation
Summary
References
4
Linear and Logistic Regression
Linear and Logistic Regression
Regression analysis
Linear regression
Data exploration and linear regression in practice
Logistic regression
Summary
References
5
Neural Networks
Neural Networks
History of neural models
Implementing a simple function with a single-layer perceptron
Summary
References
6
Convolutional Neural Networks
Convolutional Neural Networks
Origin of convolutional neural networks
Deep neural networks
Deploying a deep neural network with Keras
Exploring a convolutional model with Quiver
References
Summary
7
Recurrent Neural Networks
Recurrent Neural Networks
Solving problems with order — RNNs
LSTM
Univariate time series prediction with energy consumption data
Summary
References
8
Recent Models and Developments
Recent Models and Developments
GANs
Reinforcement learning
Basic RL techniques: Q-learning
References
Summary
9
Software Installation and Configuration
Software Installation and Configuration
Linux installation
macOS X environment installation
Windows installation
Summary

Finding a common center - K-means

Here we go! After some necessary preparation review, we will finally start to learn from data; in this case, we are looking to label data we observe in real life.

In this case, we have the following elements:

  • A set of N-dimensional elements of numeric type
  • A predetermined number of groups (this is tricky because we have to make an educated guess)
  • A set of common representative points for each group (called centroids)

The main objective of this method is to split the dataset into an arbitrary number of clusters, each of which can be represented by the mentioned centroids.

The word centroid comes from the mathematics world, and has been translated to calculus and physics. Here we find a classical representation of the analytical calculation of a triangle's centroid:

Graphical depiction of the centroid finding scheme for a triangle

The centroid...

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