Gain insights into JAX and Flax's features for deep learning. Learn about optimizers, functions, data loading, and model training. Explore hands-on projects for practical experience.

edujax_1.tar.gz

jaxbook

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This course comprehensively introduces JAX and Flax, two open-source libraries that have gained prominence for their efficiency, flexibility, and scalability in deep learning applications. 

In this course, you’ll explore deep learning principles and understand the unique features of JAX and Flax. You will learn the basics of JAX, optimizers using JAX and Flax, and loss and activation functions. You’ll also learn how to load datasets, perform classification using distributed learning, and use ResNet and LSTM models. In the end, you will complete a project for hands-on experience using JAX and Flax for transfer learning. 

By the end of the course, you’ll be proficient in implementing and customizing neural network models using JAX and Flax, equipped with hands-on skills in advanced optimization and distributed training.

Deep Learning with JAX and Flax

JAX doesn’t ship with data-loading utilities. This keeps JAX focused on providing a fast tool for building and training machine learning models. Loading data in JAX is done using either TensorFlow or PyTorch. This lesson will focus on how to load datasets in JAX using TensorFlow.

Let’s dive in!

# Loading text data in JAX

Let’s use the Worldcup tweets dataset to illustrate how to load text datasets with JAX. We import the standard data science packages and then view a sample of the data.


import pandas as pd

# Read the csv file by giving the path to the extracted file
df = pd.read_csv("/usr/local/notebooks/worldcup-tweets.csv") 
print(df.head())

# Clean the text data

Let's do some processing of the data before we proceed to load it using TensorFlow. Standard processing in text problems is to remove stop words. **Stop words** are common words, such as `a` or `the`, that don't help the model in identifying the polarity of a sentence. NLTK provides the stops words. Therefore, we can write a function to remove them from the Worldcup tweets dataset.


Course Introduction

Basics of JAX

Optimizers in JAX and Flax

Loss and Activation Functions

Load Datasets in JAX

Image Classification and Distributed Training

TensorBoard and State Handling

LSTM in JAX and Flax

Flax vs. TensorFlow

Using ResNet Model in Flax

Transfer Learning in JAX and Flax

Conclusion

Appendix

Preparing Text Dataset

Loading text data in JAX