Archive · page 3

Old but gold There seems to be two different problems. But really, it's the same problem. 1. Find the repeating and non-repeating parts of the decimal expansion of 1/n. 1/3 = 0.(3) 1/6 = 0.1(6) 2. For a singly linked lis

How to vibecode Chizhik-Pyzchic app In the alternative channel there is [step-by-step](<https://t.me/alina_yerevan_js/270>) instruction how to create a small, but fully functional web application. Post language is Russia

Old but gold Let's discuss a programming task. You have a bunch of numeric pairs like 5, 5, 7, 7, 2, 2 and one unique number, like 13. You mix everything into one array and shuffle it. Now you have something like [7, 2,

Titanic - Machine Learning from Disaster I want to close my gestalt. I invented a new ML method, I'm working as ML engineer for 9 years, I taught ML in GoTo school and in Russian Armenian University. But I have never sub

From uplift to logit Where we are In the previous [post](<https://t.me/phys_math_dev/126>) we started to build a bridge from uplift to a score, which lets us solve binary classification problem. What we achieved: ⚗️ calc

To those, who want to understand agents properly There is a [post](<https://t.me/aostrikov_ai_agents/38>) (in Russian) from a guy I really respect. Formally, it’s an advertisement for Yet Another Agent’s channel — but th

Slightly improved MapReduce sunflowers I just realized that in the [post](<https://t.me/phys_math_dev/91>) I promised to share a new version of map-reduce sunflowers with a small improvement for watering cells with tall

Vibe Coding Guide I’m monitoring a few resources with good vibe-coding and agentic programming practices, and I try to apply this stuff in my everyday work. There’s a [manual](<https://drive.google.com/file/d/1mqA77lecdm

Levels of liquid in a Markov process = PageRank This post is a compact version of what happened in a neighboring chat. Sorry to newcomers who already read it — and welcome! The first two pictures are from a student who w

Congratulations! We’ve hit a round number of subscribers! Thank you for being here. I’m not Ramanujan, and not every number feels like a close friend. Still, when I watched the subscriber count slowly crawling up, I coul

The ideal model. Part 1. I procrastinated on this topic for some time. Let's at least start this conversation. What's the problem? I have a synthetic dataset, so I know the rules of how it was built. There is one model t

Repository is public After a short conversation with the iron friend, I decided to use the permissive license Apache 2.0 for the Gradient Boosted Decision Trees with Extrapolation repository and made it public. The main

GBDTE It's quite hard to navigate the channel, so I created this navigation/summary post. It's about a pet project I started about ten years ago. The main idea is that we can use slightly modified gradient boosted decisi

Dict vs % In the previous version of left-hand maze traversal the heavy lifting was done by %. It guarantees that when we turn left or right, our direction (number 0,1,2,3 stored in dc) stays in the 0-3 range. One can us

Your AI partner I want to dilute hard stuff a little bit with shitposting. Let's compare our assistants, how they see us. Prompt: ``` Draw the most honest picture of how I treated you over all this time. ```

Microsoft scientists [declared](<https://archive.ph/5HLtC>) that they will be replaced by AI

TFWR. Left hand maze traversal. Yesterday I published the code for left-hand maze traversal. Today you can hang out and watch a video of how it works.

Left hand rule in The Farmer Was Replaced When I first solved the TFWR maze, I reached for DFS without thinking. But when I tried to explain the game to a less seasoned programmer, I realized DFS quietly assumes you’re c

2D insertion sort. Implementation. In the previous post I described a nice 2D array sorting approach based on insertion sort. Today you can see how it behaves in practice — watch the video. I personally love this kind of

2D sort In The Farmer Was Replaced there is a subgame in which you are to sort a 2D field. I tried several options and liked the 2D insertion-sort algorithms the most. It’s exactly what I want to speak about today. First