Paolo Perrotta – Medium

Paolo Perrotta

Featured Book

Programming Machine Learning

Programming Machine Learning

Start from scratch and code your way to a working machine learning system.

2020

Stories

Published in
The Pragmatic Programmers

Google Colab: The First Few Steps

Google Colab is a “computational notebook”. Let’s see what that means, with a quick hands-on tutorial.

Dec 15, 2021

Google Colab: The First Few Steps

Dec 15, 2021

Published in
Level Up Coding

Neural Networks Visualized

Let’s walk though a neural network and visualize everything that happens inside it, step by step.

Dec 29, 2020

Neural Networks Visualized

Dec 29, 2020

Published in
Level Up Coding

Killer Combo: Softmax and Cross Entropy

The derivative of the softmax and the cross entropy loss, explained step by step.

Jun 27, 2020

Killer Combo: Softmax and Cross Entropy

Jun 27, 2020

Published in
The Startup

This Is Machine Learning, Part 2: Supervised Learning

In the second post of this series, we talk about a specific approach to machine learning — one that reaped impressive results.

May 4, 2020

This Is Machine Learning, Part 2: Supervised Learning

May 4, 2020

Published in
The Startup

This Is Machine Learning, Part 1: Learning vs. Coding

This is the first of three posts adapted from Chapter 1 of Programming Machine Learning.

Apr 30, 2020

This Is Machine Learning, Part 1: Learning vs. Coding

Apr 30, 2020

Of Gradients and Matrices

This artcle explains a line of code in my book, Programming Machine Learning–the line that calculates the gradient of the loss.

Apr 22, 2020

Of Gradients and Matrices

Apr 22, 2020

Published in
Level Up Coding

Grokking the Cross Entropy Loss

This post explains the intuitive meaning of the cross entropy loss.

Mar 28, 2020

Grokking the Cross Entropy Loss

Mar 28, 2020

Published in
Level Up Coding

The Problem with Accuracy

To measure the performance of an ML classifier, “accuracy” is the easiest metric you can take–but it might also be misleading.

Mar 10, 2020

A fire alarm is triggered by the smoke from a freshly baked cake.

Mar 10, 2020

Paolo Perrotta

Paolo Perrotta

Book Author

Author of Programming Machine Learning (https://pragprog.com/book/pplearn).

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