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Deep Learning with TensorFlow

You're reading from  Deep Learning with TensorFlow

Product type Book
Published in Apr 2017
Publisher Packt
ISBN-13 9781786469786
Pages 320 pages
Edition 1st Edition
Languages
Authors (3):
Giancarlo Zaccone Giancarlo Zaccone
Profile icon Giancarlo Zaccone
Md. Rezaul Karim Md. Rezaul Karim
Profile icon Md. Rezaul Karim
Ahmed Menshawy Ahmed Menshawy
Profile icon Ahmed Menshawy
View More author details

Table of Contents (11) Chapters

Preface Getting Started with Deep Learning First Look at TensorFlow Using TensorFlow on a Feed-Forward Neural Network TensorFlow on a Convolutional Neural Network Optimizing TensorFlow Autoencoders Recurrent Neural Networks GPU Computing Advanced TensorFlow Programming Advanced Multimedia Programming with TensorFlow Reinforcement Learning

Implementing an autoencoder

Training an autoencoder is basically a simple process. It is a neural network whose output is same as the input. The basic architecture of the autoencoder is as follows.

There is an input layer, which is followed by a few hidden layers, and then, after a certain depth, the hidden layers follow the reverse architecture until we reach a point where the final layer is the same as the input layer. We pass data into the network whose embedding we wish to learn.

In this example, we use the images input by the MNIST dataset. We begin our implementation by importing all the main libraries:

import tensorflow as tf 
import numpy as np
import matplotlib.pyplot as plt
import mnist_data

We then prepare the MNIST dataset. We use the input_data function to load and set up the data:

from tensorflow.examples.tutorials.mnist import input_data 
mnist = input_data.read_data_sets("MNIST_data/",one_hot...
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