Kalman filtering often looks intimidating at first. Many introductions start with matrix equations, state-space models, Gaussian distributions, and recursive Bayesian estimation. All of that is cor...

I have just open-sourced my little sound direction detection project here: entron/esp32_sound_direction. The idea is simple: use an ESP32 and two microphones to estimate where a sound is coming ...

The following blog post is drafted by ChatGPT based on my discussion on this topic with some of my edits. I have been working on a small hobby robot whose goal is intentionally modest: place i...

从费曼的挑战者号调查谈起对现代管理文化的反思

I have never encountered a problem that required a variational autoencoder (VAE) to solve. I hope I never will. They look complicated, and I generally try to avoid learning man-made, complicated c...

本文是我和ChatGPT对这个问题讨论后让ChatGPT写的总结。 在现代中国的公共语境中，“民族劣根性”这一词汇常常以一种似乎“自我反省”“勇于直面问题”的姿态出现。它似乎象征着一种清醒，一种敢于自剖的勇气，甚至被一些人视为知识分子的“诚实”。然而，当我们真正追溯这一概念的历史来源、它所依赖的理论背景，以及它在中国语境中的传播路径时，却会发现：所谓“中国人的劣根性”，并不是源自中国自...

This is based on my discussion with ChatGPT. I’ve been thinking about this topic for a while, and what motivates me is the following observation: People with knowledge—such as technical profession...

The classic split between generative and discriminative models was introduced for supervised learning: compare Naïve Bayes (model $p(x, y)$) with Logistic Regression (model $p(y\mid x)$). In conte...

My BLDC Experiment Setup I learned that the joints in robots are mainly using BLDC motor + FOC control. To have a better understanding, I bought two sets of small BLDC + MT6701 magnetic encoder +...

为什么有的时候战争反而促进了科技的进步