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Hands-On Machine Learning for Algorithmic Trading

Hands-On Machine Learning for Algorithmic Trading

By : Yau, Stefan Jansen
4.1 (20)
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Hands-On Machine Learning for Algorithmic Trading

Hands-On Machine Learning for Algorithmic Trading

4.1 (20)
By: Yau, 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)
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Dimensionality reduction

In linear algebra terms, the features of a dataset create a vector space whose dimensionality corresponds to the number of linearly independent columns (assuming there are more observations than features). Two columns are linearly dependent when they are perfectly correlated so that one can be computed from the other using the linear operations of addition and multiplication.

In other words, they are parallel vectors that represent the same rather than different directions or axes and only constitute a single dimension. Similarly, if one variable is a linear combination of several others, then it is an element of the vector space created by those columns, rather than adding a new dimension of its own.

The number of dimensions of a dataset matter because each new dimension can add a signal concerning an outcome. However, there is also a downside known as...

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