▪️ For beginners
▪️ End-to-end
▪️ Practice instead of theory
▪️ Intuition instead of definition
▪️ Minimum math
▪️ Real-world dataset
▪️ Flexible example applications
▪️ Built with community feedback
Let's go through these points 👇
For beginners
Only Python knowledge will be required to do the course. No previous machine learning experience needed.
End-to-end
We will cover the whole pipeline - from collecting and cleaning data to deploying a trained model.
We will also discuss some topics like ethics and bias and problem framing.
Practice instead of theory
The course will be practice-oriented. It will not teach you the latest theoretical advances in the ML field, but it will give you the basics for all the building blocks you need to start building ML applications yourself.
Intuition instead of definition
I don't plan to go deep and explain all the details of concepts like backpropagation, optimization etc - there are enough courses that do that.
I will teach you the most important ideas and give you intuition on how you can use these concepts.
Minimum math
The point above means also less focus on math. While important to get a deep understanding and develop new techniques, only minimal math knowledge is needed to get started with ML and build a useful application!
Real-world dataset
We are not going to use MNIST or CIFAR 😀. All exercises will be using the (amazing) @unsplash dataset!
There will also be no predefined application - you will be able to work on a problem you find interesting!
Built with community feedback
I plan to post lots of information about the creation process and collect feedback. I'm just finishing the first tutorial and I'll make it publicly available for anybody who is interested to take a look and share their opinion.
Stay tuned! 😀
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Here are some insights I found particulalry interesting 👇
"Neural networks are parallel computers"
That is why they are so powerful - you can train a generic computer to solve your problem. This is also the driver behind Software 2.0 - neural network are becoming more and more capable of solving all kinds of problems.
"Neural networks perform well on tasks that humans can perform very quickly"
Humans don't think much when listening, observing or performing simple tasks.
This means that a neural network can be trained to be good at it as well: NLP, computer vision and reinforcement learning.
My setup for recording videos for my machine learning course 🎥
A lot of people asked about my setup the other day, so here a short thread on that. It's nothing fancy, but it does a good job 🤷♂️
Details 👇
Hardware ⚙️
▪️ MacBook Pro (2015 model) - screen sharing and recording
▪️ iPhone XS - using the back camera for video recording
▪️ Omnidiretional external mic - connected to the iPhone
▪️ Highly professional camera rig - books mostly about cooking and travel 😄
👇
Software 💻
▪️ OBS Studio - recording of the screen and the camera image
▪️ EpocCam - use your iPhone as a web cam. You can connect your iPhone both over WiFi and cable.
▪️ Google Slides - for presentation
▪️ Jupyter notebooks and Google Colab - for experimenting with code
Let's talk about a common problem in ML - imbalanced data ⚖️
Imagine we want to detect all pixels belonging to a traffic light from a self-driving car's camera. We train a model with 99.88% performance. Pretty cool, right?
Actually, this model is useless ❌
Let me explain 👇
The problem is the data is severely imbalanced - the ratio between traffic light pixels and background pixels is 800:1.
If we don't take any measures, our model will learn to classify each pixel as background giving us 99.88% accuracy. But it's useless!
What can we do? 👇
Let me tell you about 3 ways of dealing with imbalanced data:
▪️ Choose the right evaluation metric
▪️ Undersampling your dataset
▪️ Oversampling your dataset
▪️ Adapting the loss
I like using VS Code when working with Jupyter notebooks. One pain point has always been automatic code formatting, but now I have a good solution.
You need:
▪️ VS Code 1.60 (August 2021)
▪️ YAPF formatter
Details 👇
VS Code 1.60
The latest VS Code version from August 2021 contains many improvements for the native display of Jupyter notebooks (which came in July 2021). They now support the command Format Cell with which you can automatically format your code.
👇
Keyboard shortcuts
You can quickly do it with a keyboard shortcut.
▪️ Windows: Shift + Alt + F
▪️ Mac: Shift + Option + F
▪️ Linux: Ctrl + Shift + I
I had to remap Shift + Option + F on my Mac, because it seems to be a macOS shortcut for some strange character...