Machine-Learning

I have an open secret about fine-tuning models. I predict most enterprises will independently rediscover this by the end of the year. First, some context. I’m an early adopter: I’ve been using GitHub Copilot since July 2021. I started using ChatGPT on November 30, 2022. I experimented heavily with fine-tuning models in 2023 and 2024. For most practical use cases, it was a waste of time and money. I’ve been using Claude Code since February 2025. Before that, I spent years building ML infrastructure on cross-functional R&D teams: ...

Below is a very terse and opinionated set of steps to data labeling and model evaluation.

Joint Probability Matrices — An ‘Extension of the Confusion Matrix’ for Continuous Variables