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Deep Learning with TensorFlow

You're reading from   Deep Learning with TensorFlow Explore neural networks with Python

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Product type Paperback
Published in Apr 2017
Publisher Packt
ISBN-13 9781786469786
Length 320 pages
Edition 1st Edition
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Authors (4):
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Md. Rezaul Karim Md. Rezaul Karim
Author Profile Icon Md. Rezaul Karim
Md. Rezaul Karim
Ahmed Menshawy Ahmed Menshawy
Author Profile Icon Ahmed Menshawy
Ahmed Menshawy
Giancarlo Zaccone Giancarlo Zaccone
Author Profile Icon Giancarlo Zaccone
Giancarlo Zaccone
Fabrizio Milo Fabrizio Milo
Author Profile Icon Fabrizio Milo
Fabrizio Milo
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Table of Contents (11) Chapters Close

Preface 1. Getting Started with Deep Learning 2. First Look at TensorFlow FREE CHAPTER 3. Using TensorFlow on a Feed-Forward Neural Network 4. TensorFlow on a Convolutional Neural Network 5. Optimizing TensorFlow Autoencoders 6. Recurrent Neural Networks 7. GPU Computing 8. Advanced TensorFlow Programming 9. Advanced Multimedia Programming with TensorFlow 10. Reinforcement Learning

The programming model

A TensorFlow program is generally divided into three phases:

  • Construction of the computational graph
  • Running a session, which is performed for the operations defined in the graph
  • Resulting data collection and analysis

These main steps define the programming model in TensorFlow.

Consider the following example, in which we want to multiply two numbers.

import tensorflow as tf 
with tf.Session() as session:
x = tf.placeholder(tf.float32,[1],name="x")
y = tf.placeholder(tf.float32,[1],name="y")
z = tf.constant(2.0)
y = x * z
x_in = [100]
y_output = session.run(y,{x:x_in})
print(y_output)

Surely TensorFlow is not necessary to multiply two numbers; also the number of lines of the code for this simple operation is so many. However, the example wants to clarify how to structure any code, from the simplest as in this instance, to the most complex.

Furthermore, the...

You have been reading a chapter from
Deep Learning with TensorFlow
Published in: Apr 2017
Publisher: Packt
ISBN-13: 9781786469786
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