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Neural Networks with R

You're reading from  Neural Networks with R

Product type Book
Published in Sep 2017
Publisher Packt
ISBN-13 9781788397872
Pages 270 pages
Edition 1st Edition
Languages
Authors (2):
Balaji Venkateswaran Balaji Venkateswaran
Profile icon Balaji Venkateswaran
Giuseppe Ciaburro Giuseppe Ciaburro
Profile icon Giuseppe Ciaburro
View More author details
Toc

Table of Contents (14) Chapters close

Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Neural Network and Artificial Intelligence Concepts 2. Learning Process in Neural Networks 3. Deep Learning Using Multilayer Neural Networks 4. Perceptron Neural Network Modeling – Basic Models 5. Training and Visualizing a Neural Network in R 6. Recurrent and Convolutional Neural Networks 7. Use Cases of Neural Networks – Advanced Topics

LSTM using the iris dataset


Continuing with the LSTM architecture for RNN introduced in Chapter 6, Recurrent and Convolutional Neural Networks, we present the iris dataset processing using the mxnet LSTM function. The function expects all inputs and outputs as numeric. It is particularly useful for processing text sequences, but here we will train an LSTM model on the iris dataset. The input values are petal.length, petal.width, sepal.length, and sepal.width. The output variable is Species, which is converted to a numeric value between one and three. The iris dataset has been detailed in Chapter 4, Perceptron Neural Network Modeling – Basic Models:

#################################################################
### Chapter 7 - Neural Networks with R - Use cases      #########
### Prediction using LSTM on IRIS dataset               #########
#################################################################

##Required one time
library("mxnet")

data(iris)

x = iris[1:5!=5,-5]
y = as.integer...
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