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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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How to train a neural network

The goal of neural network training is to adjust the hidden and output layer parameters to best predict new data based on training samples. Backpropagation, often simply called backprop, ensures that the information about the performance of the current parameter values gleaned from the evaluation of the cost function for one or several samples flows back to parameters and facilitates optimal updates.

Backpropagation refers to the computation of the gradient of the function that relates the internal parameters that we wish to update to the cost function. The gradient is useful because it indicates the direction of parameter change, which causes the maximal increase in the cost function. Hence, adjusting the parameters in the direction of the negative gradient should produce an optimal cost reduction for the observed samples, as we saw in Chapter 6...

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