You're reading from Python Machine Learning - Third Edition

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Published inDec 2019

Reading LevelExpert

PublisherPackt

ISBN-139781789955750

Edition3rd Edition

Languages

Python

Tools

TensorFlow Keras

Concepts

Machine Learning

Authors (2):

Sebastian Raschka

Vahid Mirjalili

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TensorFlow's computation graphs: migrating to TensorFlow v2

TensorFlow performs its computations based on a directed acyclic graph (DAG). In TensorFlow v1.x, such graphs could be explicitly defined in the low-level API, although this was not trivial for large and complex models. In this section, we will see how these graphs can be defined for a simple arithmetic computation. Then, we will see how to migrate a graph to TensorFlow v2, the eager execution and dynamic graph paradigm, as well as the function decoration for faster computations.

Understanding computation graphs

TensorFlow relies on building a computation graph at its core, and it uses this computation graph to derive relationships between tensors from the input all the way to the output. Let's say that we have rank 0 (scalar) tensors a, b, and c and we want to evaluate . This evaluation can be represented as a computation graph, as shown in the following figure:

As you can see, the computation graph...

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Python Machine Learning - Third Edition

Published in: Dec 2019Publisher: PacktISBN-13: 9781789955750

Authors (2)

Sebastian Raschka

Sebastian Raschka is an Assistant Professor of Statistics at the University of Wisconsin-Madison focusing on machine learning and deep learning research. As Lead AI Educator at Grid AI, Sebastian plans to continue following his passion for helping people get into machine learning and artificial intelligence.
Read more about Sebastian Raschka

Vahid Mirjalili

Vahid Mirjalili is a deep learning researcher focusing on CV applications. Vahid received a Ph.D. degree in both Mechanical Engineering and Computer Science from Michigan State University.
Read more about Vahid Mirjalili

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You're reading from Python Machine Learning - Third Edition

TensorFlow's computation graphs: migrating to TensorFlow v2

Understanding computation graphs

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