Delve into PyTorch basics: autograd, model classes, datasets, and data loaders. Gain insights into model development while avoiding common pitfalls. Start creating and training your own PyTorch models.

Deep learning with Pytorch, A beginner's Guide By Daniel Godoy.png

jupyter_final.tar.gz

codesnip1

tensorboard

jupyterp-autograd

jupyterp-computation

jupyterp-rethinking

jupyterp-minibatch

jupyterp-dataloader

jupyterp-evaluation

jupyterp-saveload

jupyterp-predictions

jupyterp-training-predictions

jupyterp-checkpointing

jupyterp-classy

jupyterp-classification

jupyterp-retest

jupyterp-retest-copy

jupyterp-retest-copy-copy

jupyterp-retest-copy-copy-copy

jupyterp-retest-copy-copy-copy-copy

jupyterp-retest-question

jupyterp-retest-question-copy

jupyterp-retest-question-copy-copy

jupyterp-retest-question-copy-copy-copy

jupyterp-retest-question-copy-copy-copy-copy

jupyterp-retest-challenge

jupyterp-retest-challenge-copy

jupyterp-retest-challenge-copy-copy

jupyterp-retest-challenge-copy-copy-copy

jupyterp-retest-challenge-copy-copy-copy-copy

jupyterp-putting1

jupyterp-putting2

jupyterp-putting3

jupyterp-putting4

jupyterp-tensorboard

jupyterp-tensorboard-graphs

jupyterp-tensorboard-scalers

jupyterp-tensorboard-training

GUI-Tensorboard

GUI-Tensorboard-graphs

GUI-Tensorboard-scalers

GUI-Tensorboard-training

GUI-Chapter04

GUI-No-Jupyter-Tensorboard

This course is designed to provide you with an easy-to-follow, structured, incremental, and from-first-principles approach to learning PyTorch. In this course, you’ll be introduced to the fundamentals of PyTorch: autograd, model classes, datasets, data loaders, and more. You will develop, step-by-step, not only the models themselves but also your understanding of them. You'll be shown both the reasoning behind the code and how to avoid some common pitfalls and errors along the way. By the time you finish this course, you’ll have a thorough understanding of the concepts and tools necessary to start developing and training your own models using PyTorch.

Deep Learning with PyTorch Step-by-Step: Part I - Fundamentals

## Decision boundary for logistic regression

We have just figured out that whenever _z_ equals zero, we are in the **decision boundary**. But _z_ is given by a linear combination of features _x1_ and _x2_. If we work out some basic operations, we arrive at:

<div style="font-size: 1.32em;">
<center>

$z \space = \space 0 \space = \space b \space + \space w_1x_1 + \space w_2x_2$

$-w_2x_2 \space = \space b \space + \space w_1x_1$

$x_2 \space = \space -\dfrac{b}{w_2} - \dfrac{w_1}{w_2}x_1$

</center>
</div>

Given our model (_b_, _w1_, and _w2_), for any value of the first feature (_x1_), we can compute the corresponding value of the second feature (_x2_) that sits exactly at the decision boundary.

# Decision boundary for logistic regression

We have just figured out that whenever _z_ equals zero, we are in the **decision boundary**. But _z_ is given by a linear combination of features _x1_ and _x2_. If we work out some basic operations, we arrive at:

<div style="font-size: 1.32em;">
<center>

$z \space = \space 0 \space = \space b \space + \space w_1x_1 + \space w_2x_2$

$-w_2x_2 \space = \space b \space + \space w_1x_1$

$x_2 \space = \space -\dfrac{b}{w_2} - \dfrac{w_1}{w_2}x_1$

</center>
</div>

Given our model (_b_, _w1_, and _w2_), for any value of the first feature (_x1_), we can compute the corresponding value of the second feature (_x2_) that sits exactly at the decision boundary.

# Decision boundary for logistic regression

We have just figured out that whenever _z_ equals zero, we are in the **decision boundary**. But _z_ is given by a linear combination of features _x1_ and _x2_. If we work out some basic operations, we arrive at:

<div>
<center>

$z \space = \space 0 \space = \space b \space + \space w_1x_1 + \space w_2x_2$

$-w_2x_2 \space = \space b \space + \space w_1x_1$

$x_2 \space = \space -\dfrac{b}{w_2} - \dfrac{w_1}{w_2}x_1$

</center>
</div>

Given our model (_b_, _w1_, and _w2_), for any value of the first feature (_x1_), we can compute the corresponding value of the second feature (_x2_) that sits exactly at the decision boundary.

Learn about the concept of decision boundary.

Decision Boundary

Introduction

Visualizing Gradient Descent

A Simple Regression Problem

Rethinking the Training Loop

Going Classy

A Simple Classification Problem

Conclusion

Appendix

Decision Boundary

Decision boundary for logistic regression