https://kferg.dev/ Recent content on kferg.dev Hugo -- gohugo.io en-us Thu, 18 Nov 2021 09:43:52 -0800 https://kferg.dev/posts/2021/c++-for-embedded-constexpr/ Thu, 18 Nov 2021 09:06:32 -0700 https://kferg.dev/posts/2021/c++-for-embedded-constexpr/ Is C++ good for embedded programming? Don&rsquo;t ask me! What does &ldquo;good&rdquo; even mean? However, as I start to dip my toes into embedded I had two thoughts: It appears to me that C is still the dominant language in embedded systems In theory the C++ principles of &ldquo;zero-cost abstraction&rdquo; and &ldquo;don&rsquo;t pay for what you don&rsquo;t use&rdquo; should be especially useful in embedded systems I&rsquo;m just a hobbyist at embedded and I don&rsquo;t intend to tell the pros what to do. https://kferg.dev/posts/2021/deep-learning-and-the-game-of-go-training-results-from-chapter-7/ Mon, 19 Apr 2021 21:06:05 -0700 https://kferg.dev/posts/2021/deep-learning-and-the-game-of-go-training-results-from-chapter-7/ In chapter 7 of my (+ Max&rsquo;s) book, Deep Learning and the Game of Go, there is an example that collects a sample of human go game records, encodes them, and trains a small neural network. This is followed by a sample output showing it achieving over 90% training set accuracy. Several readers have reported that they could not reproduce this. You&rsquo;re not crazy! There is a mismatch between the code listing in the book and the results listing. https://kferg.dev/posts/2020/python-tensorflow-multiprocessing-forkserver/ Mon, 28 Dec 2020 08:50:50 -0800 https://kferg.dev/posts/2020/python-tensorflow-multiprocessing-forkserver/ <p>Even after decades of hacking with Python, I&rsquo;m still learning new things. Recently I discovered the <code>forkserver</code> option in the <code>multiprocessing</code> library. This is a pretty obscure, low-level setting, but it solved some problems I&rsquo;ve had trying to use TensorFlow with <code>multiprocessing</code>.</p> https://kferg.dev/posts/2020/audio-reactive-programming-envelope-followers/ Sat, 21 Nov 2020 20:20:40 -0800 https://kferg.dev/posts/2020/audio-reactive-programming-envelope-followers/ <p>My weirdly specific hobby is coding visuals that react to music. (See <a href="https://kferg.dev/projects/2020/audio-visualizers/">here</a> or <a href="https://kferg.dev/projects/2019/illumitar/">here</a>.) I thought I would share some of my audio processing and animation tricks. Most of my techniques for synchronizing animations to music start with <em>envelope followers</em>. In this article, I&rsquo;ll explain what an envelope follower is and how it works. In a future article, I&rsquo;ll give some examples of how to use one.</p> https://kferg.dev/posts/netlify-review/ Tue, 10 Nov 2020 20:39:35 -0800 https://kferg.dev/posts/netlify-review/ Recently I wanted to publish a tiny web site: literally a single HTML file. I used to run a small personal server for just such occasions, but I&rsquo;ve given up on trying to keep up with security patches. I started looking into static web hosting services with a few goals in mind: https://kferg.dev/posts/hello/ Sat, 07 Nov 2020 15:56:42 -0800 https://kferg.dev/posts/hello/ Hello. I haven&rsquo;t had a personal web site up in a while. Gonna give this static content generation thing a try and see how it goes.