會員

R Deep Learning Projects

Yuxi (Hayden) Liu Pablo Maldonado 著

更新時間：2021-06-24 19:27:10

開會員，本書免費讀 >

最新章節： Leave a review - let other readers know what you think

MachinelearningprofessionalsanddatascientistslookingtomasterdeeplearningbyimplementingpracticalprojectsinRwillfindthisbookausefulresource.AknowledgeofRprogrammingandthebasicconceptsofdeeplearningisrequiredtogetthebestoutofthisbook.

目錄(109章)

倒序

coverpage
Title Page
Packt Upsell
Why subscribe?
PacktPub.com
Contributors
About the authors
About the reviewer
Packt is searching for authors like you
Preface
Who this book is for
What this book covers
To get the most out of this book
Download the example code files
Conventions used
Get in touch
Reviews
Handwritten Digit Recognition Using Convolutional Neural Networks
What is deep learning and why do we need it?
What makes deep learning special?
What are the applications of deep learning?
Handwritten digit recognition using CNNs
Get started with exploring MNIST
First attempt – logistic regression
Going from logistic regression to single-layer neural networks
Adding more hidden layers to the networks
Extracting richer representation with CNNs
Summary
Traffic Sign Recognition for Intelligent Vehicles
How is deep learning applied in self-driving cars?
How does deep learning become a state-of-the-art solution?
Traffic sign recognition using CNN
Getting started with exploring GTSRB
First solution – convolutional neural networks using MXNet
Trying something new – CNNs using Keras with TensorFlow
Reducing overfitting with dropout
Dealing with a small training set – data augmentation
Reviewing methods to prevent overfitting in CNNs
Summary
Fraud Detection with Autoencoders
Getting ready
Installing Keras and TensorFlow for R
Installing H2O
Our first examples
A simple 2D example
Autoencoders and MNIST
Outlier detection in MNIST
Credit card fraud detection with autoencoders
Exploratory data analysis
The autoencoder approach – Keras
Fraud detection with H2O
Exercises
Variational Autoencoders
Image reconstruction using VAEs
Outlier detection in MNIST
Text fraud detection
From unstructured text data to a matrix
From text to matrix representation — the Enron dataset
Autoencoder on the matrix representation
Exercises
Summary
Text Generation Using Recurrent Neural Networks
What is so exciting about recurrent neural networks?
But what is a recurrent neural network really?
LSTM and GRU networks
LSTM
GRU
RNNs from scratch in R
Classes in R with R6
Perceptron as an R6 class
Logistic regression
Multi-layer perceptron
Implementing a RNN
Implementation as an R6 class
Implementation without R6
RNN without derivatives — the cross-entropy method
RNN using Keras
A simple benchmark implementation
Generating new text from old
Exercises
Summary
Sentiment Analysis with Word Embeddings
Warm-up – data exploration
Working with tidy text
The more the merrier – calculating n-grams instead of single words
Bag of words benchmark
Preparing the data
Implementing a benchmark – logistic regression
Exercises
Word embeddings
word2vec
GloVe
Sentiment analysis from movie reviews
Data preprocessing
From words to vectors
Sentiment extraction
The importance of data cleansing
Vector embeddings and neural networks
Bi-directional LSTM networks
Other LSTM architectures
Exercises
Mining sentiment from Twitter
Connecting to the Twitter API
Building our model
Exploratory data analysis
Using a trained model
Summary
Other Books You May Enjoy
Leave a review - let other readers know what you think 更新時間：2021-06-24 19:27:10

官术网_书友最值得收藏!

R Deep Learning Projects