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Hands-On Meta Learning with Python

You're reading from   Hands-On Meta Learning with Python Meta learning using one-shot learning, MAML, Reptile, and Meta-SGD with TensorFlow

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Product type Paperback
Published in Dec 2018
Publisher Packt
ISBN-13 9781789534207
Length 226 pages
Edition 1st Edition
Languages
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Author (1):
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Sudharsan Ravichandiran Sudharsan Ravichandiran
Author Profile Icon Sudharsan Ravichandiran
Sudharsan Ravichandiran
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Toc

Table of Contents (12) Chapters Close

Preface 1. Introduction to Meta Learning 2. Face and Audio Recognition Using Siamese Networks FREE CHAPTER 3. Prototypical Networks and Their Variants 4. Relation and Matching Networks Using TensorFlow 5. Memory-Augmented Neural Networks 6. MAML and Its Variants 7. Meta-SGD and Reptile 8. Gradient Agreement as an Optimization Objective 9. Recent Advancements and Next Steps 10. Assessments 11. Other Books You May Enjoy

Building relation networks using TensorFlow


The relation function is pretty simple, right? We will understand relation networks better by implementing one in TensorFlow.

You can also check the code available as a Jupyter Notebook with an explanation here: https://github.com/sudharsan13296/Hands-On-Meta-Learning-With-Python/blob/master/04.%20Relation%20and%20Matching%20Networks%20Using%20Tensorflow/4.5%20Building%20Relation%20Network%20Using%20Tensorflow.ipynb.

First, we import all of the required libraries:

import tensorflow as tf
import numpy as np

We will randomly generate our data points. Let's say we have two classes in our dataset; we will randomly generate some 1,000 data points for each of these classes:

classA = np.random.rand(1000,18)
ClassB = np.random.rand(1000,18)

We create our dataset by combining both of these classes:

data = np.vstack([classA, ClassB])

Now, we set the labels; we assign the 1label for classA and the 0label for classB:

label = np.vstack([np.ones((len(classA),1)),np.zeros...
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