Build a neural network model to simulate any functions using PyTorch — We know that the Linear Regression model can help generate a line to simulate “Linear Data”. A function in the form of f(x) = ax + b. So, what about other functions, like non-linear ones? Even an irregular shape that we know nothing about. Can we still simulate a model…

Leverage the idea from Neural Network to estimate weights for a system with multiple factors — Imagine you have a customer dataset with dozens of features, and you are trying to build a weighted system to predict certain customer behaviors (like buy or not buy). How to determine those individual weights value?

Understand how image Fourier Transform works and implement it with the shortest Python code — Image 2D Fourier Transform is so useful and powerful, that you will use it sooner or later if you work with Machine Learning or vision automation. Call API or libraries to use it is a piece of cake, fully understanding 2D Discrete Fourier Transform isn’t that easy. In this article…

Understand convolution with a real case and verify the result with Python — Convolution is an operation commonly used in digital signal processing and neural network models. Most DSP or ML textbook explains the Convolution operation with lots of math equations and complex mathematic derivations. Looks scary and easily gets confused. In this article, I am trying to explain the operation with a…

An Anatomy of Arithmetic Mean and Geometric Mean — Two Cases A stock has half the chance to increase 30% monthly and another half to decrease 25% monthly. I will say, hm, it is a good stock. Averagely speaking, every month I will have a 5% profit if I keep holding it for a year. I will get 79% (1.05¹² =…

An easy way to create and manage VMs in Linux, Windows and macOS with the same commands in pure terminal — WSL/WSL2 is a phenomenal tool in Windows, it just so much empowers Windows users to use Linux, Sometimes I feel Windows is the best desktop to run Linux. But what about Linux/Ubuntu and macOS, is there anything similar to WSL of Windows? Then I found Multipass from canonical, the same…

A simple way to keep your MacBook awake when closing the lid. — Almost all articles from google will ask you to connect your Mac to an external monitor or install third-party software to keep MacBook awake after closing the lid. But connecting to an external monitor is not ideal, installing software is not always safe especially since the tool will usually ask…

Bash is good, but Zsh is even better. Zsh won’t boost your productivity 10x times, but you may feel like that. And the themes for Zsh can make the command terminal a beautiful place to stay. Once started using ZSH, I can’t go back to Bash anymore. Here are my…

Use the latest PyQT6 or PySide6 to build a cross-platform desktop application in Apple Silicon chip — I am using Python in my beloved M1 Macbook Air. Thinking, can I use Python to build a GUI desktop application in the little power machine? After some errors and trials, I found a way out, and it shall also work for you. Install Python Make sure you have the M1 native…