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Deep Learning with R for Beginners : Design Neural Network Models in R 3. 5 Using TensorFlow, Keras, and MXNet.
This Learning Path is your step-by-step guide to building deep learning models using R's wide range of deep learning libraries and frameworks. Through multiple real-world projects and expert guidance and tips, you'll gain the exact knowledge you need to get started with developing deep mod...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Otros Autores: | , , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Birmingham :
Packt Publishing, Limited,
2019.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Title Page; Copyright and Credits; About Packt; Contributors; Table of Contents; Preface; Chapter 1: Getting Started with Deep Learning; What is deep learning?; A conceptual overview of neural networks; Neural networks as an extension of linear regression; Neural networks as a network of memory cells; Deep neural networks; Some common myths about deep learning; Setting up your R environment; Deep learning frameworks for R; MXNet; Keras; Do I need a GPU (and what is it, anyway)?; Setting up reproducible results; Summary; Chapter 2: Training a Prediction Model; Neural networks in R
- Building neural network models; Generating predictions from a neural network; The problem of overfitting data
- the consequences explained; Use case
- building and applying a neural network; Summary; Chapter 3: Deep Learning Fundamentals; Building neural networks from scratch in R; Neural network web application; Neural network code; Back to deep learning; The symbol, X, y, and ctx parameters; The num.round and begin.round parameters; The optimizer parameter; The initializer parameter; The eval.metric and eval.data parameters; The epoch.end.callback parameter; The array.batch.size parameter
- Using regularization to overcome overfitting; L1 penalty; L1 penalty in action; L2 penalty; L2 penalty in action; Weight decay (L2 penalty in neural networks); Ensembles and model-averaging; Use case
- improving out-of-sample model performance using dropout; Summary; Chapter 4: Training Deep Prediction Models; Getting started with deep feedforward neural networks; Activation functions; Introduction to the MXNet deep learning library; Deep learning layers; Building a deep learning model; Use case
- using MXNet for classification and regression; Data download and exploration
- Preparing the data for our modelsThe binary classification model; The regression model; Improving the binary classification model; The unreasonable effectiveness of data; Summary; Chapter 5: Image Classification Using Convolutional Neural Networks; CNNs; Convolutional layers; Pooling layers; Dropout; Flatten layers, dense layers, and softmax; Image classification using the MXNet library; Base model (no convolutional layers); LeNet; Classification using the fashion MNIST dataset; References/further reading; Summary; Chapter 6: Tuning and Optimizing Models
- Evaluation metrics and evaluating performance; Types of evaluation metric; Evaluating performance; Data preparation; Different data distributions; Data partition between training, test, and validation sets; Standardization; Data leakage; Data augmentation; Using data augmentation to increase the training data; Test time augmentation; Using data augmentation in deep learning libraries; Tuning hyperparameters; Grid search; Random search; Use case-using LIME for interpretability; Model interpretability with LIME; Summary; Chapter 7: Natural Language Processing Using Deep Learning