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Machine Learning for Finance

Machine Learning for Finance

By : James Le , Jannes Klaas
4.1 (59)
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Machine Learning for Finance

Machine Learning for Finance

4.1 (59)
By: James Le , Jannes Klaas

Overview of this book

Machine Learning for Finance explores new advances in machine learning and shows how they can be applied across the financial sector, including insurance, transactions, and lending. This book explains the concepts and algorithms behind the main machine learning techniques and provides example Python code for implementing the models yourself. The book is based on Jannes Klaas’ experience of running machine learning training courses for financial professionals. Rather than providing ready-made financial algorithms, the book focuses on advanced machine learning concepts and ideas that can be applied in a wide variety of ways. The book systematically explains how machine learning works on structured data, text, images, and time series. You'll cover generative adversarial learning, reinforcement learning, debugging, and launching machine learning products. Later chapters will discuss how to fight bias in machine learning. The book ends with an exploration of Bayesian inference and probabilistic programming.
Table of Contents (15 chapters)
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Machine Learning for Finance
Contributors
Preface
Other Books You May Enjoy
Index

Preparing the data


Preparing the text is a task in its own right. This is because in the real world, text is often messy and cannot be fixed with a few simple scaling operations. For instance, people can often make typos after adding unnecessary characters as they are adding text encodings that we cannot read. NLP involves its own set of data cleaning challenges and techniques.

Sanitizing characters

To store text, computers need to encode the characters into bits. There are several different ways to do this, and not all of them can deal with all the characters out there.

It is good practice to keep all the text files in one encoding scheme, usually UTF-8, but of course, that does not always happen. Files might also be corrupted, meaning that a few bits are off, therefore rendering some characters unreadable. Therefore, before we do anything else, we need to sanitize our inputs.

Python offers a helpful codecs library, which allows us to deal with different encodings. Our data is UTF-8 encoded...

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