Book Image

Hands-On Machine Learning for Algorithmic Trading

By : Stefan Jansen
Book Image

Hands-On Machine Learning for Algorithmic Trading

By: Stefan Jansen

Overview of this book

The explosive growth of digital data has boosted the demand for expertise in trading strategies that use machine learning (ML). This book enables you to use a broad range of supervised and unsupervised algorithms to extract signals from a wide variety of data sources and create powerful investment strategies. This book shows how to access market, fundamental, and alternative data via API or web scraping and offers a framework to evaluate alternative data. You’ll practice the ML work?ow from model design, loss metric definition, and parameter tuning to performance evaluation in a time series context. You will understand ML algorithms such as Bayesian and ensemble methods and manifold learning, and will know how to train and tune these models using pandas, statsmodels, sklearn, PyMC3, xgboost, lightgbm, and catboost. This book also teaches you how to extract features from text data using spaCy, classify news and assign sentiment scores, and to use gensim to model topics and learn word embeddings from financial reports. You will also build and evaluate neural networks, including RNNs and CNNs, using Keras and PyTorch to exploit unstructured data for sophisticated strategies. Finally, you will apply transfer learning to satellite images to predict economic activity and use reinforcement learning to build agents that learn to trade in the OpenAI Gym.
Table of Contents (23 chapters)

How to extract features from text data

Text data can be extremely valuable given how much information humans communicate and store using natural language—the diverse set of data sources relevant to investment range from formal documents such as company statements, contracts, and patents, to news, opinion, and analyst research, and even to commentary and various types of social media posts and messages.

Numerous and diverse text data samples are available online to explore the use of NLP algorithms, many of which are listed among the references for this chapter.

To guide our journey through the techniques and Python libraries that most effectively support the realization of this goal, we will highlight NLP challenges, introduce critical elements of the NLP workflow, and illustrate applications of ML from text data to algorithmic trading.

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