Deep Learning By Example

Overview of this book

Deep learning is a popular subset of machine learning, and it allows you to build complex models that are faster and give more accurate predictions. This book is your companion to take your first steps into the world of deep learning, with hands-on examples to boost your understanding of the topic. This book starts with a quick overview of the essential concepts of data science and machine learning which are required to get started with deep learning. It introduces you to Tensorflow, the most widely used machine learning library for training deep learning models. You will then work on your first deep learning problem by training a deep feed-forward neural network for digit classification, and move on to tackle other real-world problems in computer vision, language processing, sentiment analysis, and more. Advanced deep learning models such as generative adversarial networks and their applications are also covered in this book. By the end of this book, you will have a solid understanding of all the essential concepts in deep learning. With the help of the examples and code provided in this book, you will be equipped to train your own deep learning models with more confidence.

Preface

Who this book is for

What this book covers

To get the most out of this book

Get in touch

Free Chapter

Data Science - A Birds' Eye View

Understanding data science by an example

Design procedure of data science algorithms

Getting to learn

Implementing the fish recognition/detection model

Different learning types

Data size and industry needs

Summary

Data Modeling in Action - The Titanic Example

Linear models for regression

Linear models for classification

Titanic example – model building and training

Different types of errors

Apparent (training set) error

Generalization/true error

Summary

Feature Engineering and Model Complexity – The Titanic Example Revisited

Feature engineering

The curse of dimensionality

Titanic example revisited – all together

Bias-variance decomposition

Learning visibility

Summary

Get Up and Running with TensorFlow

TensorFlow installation

The TensorFlow environment

Computational graphs

TensorFlow data types, variables, and placeholders

Getting output from TensorFlow

TensorBoard – visualizing learning

Summary

TensorFlow in Action - Some Basic Examples

Capacity of a single neuron

Activation functions

Feed-forward neural network

The need for multilayer networks

TensorFlow terminologies – recap

Linear regression model – building and training

Logistic regression model – building and training

Summary

Deep Feed-forward Neural Networks - Implementing Digit Classification

Hidden units and architecture design

MNIST dataset analysis

Digit classification – model building and training

Summary

Introduction to Convolutional Neural Networks

The convolution operation

Motivation

Different layers of CNNs

CNN basic example – MNIST digit classification

Summary

Object Detection – CIFAR-10 Example

Object detection

CIFAR-10 – modeling, building, and training

Summary

Object Detection – Transfer Learning with CNNs

Transfer learning

CIFAR-10 object detection – revisited

Summary

Recurrent-Type Neural Networks - Language Modeling

The intuition behind RNNs

LSTM networks

Implementation of the language model

Summary

Representation Learning - Implementing Word Embeddings

Introduction to representation learning

Word2Vec

A practical example of the skip-gram architecture

Skip-gram Word2Vec implementation

Summary

Neural Sentiment Analysis

General sentiment analysis architecture

Sentiment analysis – model implementation

Summary

Autoencoders – Feature Extraction and Denoising

Introduction to autoencoders

Examples of autoencoders

Autoencoder architectures

Compressing the MNIST dataset

Convolutional autoencoder

Denoising autoencoders

Applications of autoencoders

Summary

Generative Adversarial Networks

An intuitive introduction

Simple implementation of GANs

Summary

Face Generation and Handling Missing Labels

Face generation

Semi-supervised learning with Generative Adversarial Networks (GANs)

Summary

Implementing Fish Recognition

Code for fish recognition

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Summary

In this chapter, we went through building a learning system for fish recognition; we also saw how we can build complex applications, such as fish recognition, using a few lines of code with the help of TensorFlow and Keras. This coding example was not meant to be understood from your side, rather to demonstrate the visibility of building complex systems and how data science in general and specifically deep learning became an easy-to-use tool.

We saw the challenges that you might encounter in your daily life as a data scientist while building a learning system.

We also looked at the typical design cycle for building a learning system and explained the overall idea of each component involved in this cycle.

Finally, we went through different learning types, having big data generated daily by big and small companies, and how this vast amount of data raises a red alert to build scalable tools to be able to analyze and extract value from this data.

At this point, the reader may be overwhelmed by all the information mentioned so far, but most of what we explained in this chapter will be addressed in other chapters, including data science challenges and the fish recognition example. The whole purpose of this chapter was to get an overall idea about data science and its development cycle, without any deep understanding of the challenges and the coding example. The coding example was mentioned in this chapter to break the fear of most newcomers in the field of data science and show them how complex systems such as fish recognition can be done in a few lines of code.

Next up, we will start our by example journey, by addressing the basic concepts of data science through an example. The next part will mainly focus on preparing you for the later advanced chapters, by going through the famous Titanic example. Lots of concepts will be addressed, including different learning methods for regression and classification, different types of performance errors and which one to care about most, and more about tackling some of the data science challenges and handling different forms of the data samples.

Deep Learning By Example

Deep Learning By Example

Overview of this book

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