K-means assumes clusters are round, so it cuts the two moons dataset straight down the middle. Spectral clustering reads the data as a graph instead: build the Laplacian, take its smallest eigenvectors, cluster in that space. With NumPy code and notes on tuning gamma.
WordPress 7.0 Beta 3 keeps the AI client in core small and pushes the providers out to plugins: Anthropic, Google and OpenAI are on the repository already, with Ollama being prepped. Plus where the MCP adapter is going and what AI Experiments 0.5.0 drops.
Weighted BCE starves when fraud is 0.2% of your data. I walk through adding a differentiable rule loss in PyTorch, what it does to ROC-AUC, and why both models need thresholds tuned the same way.
Gutenberg 22.7 ships the Connectors API, turns real-time collaboration on by default, adds live previews for style variations, and puts phpMyAdmin in wp-env. Notes on what to test before you ship it.
Raw averages describe a world that was not reacting to you. This post uses the penalty kick problem to show why competitive data needs mixed strategies, and what that looks like in pricing, fraud detection and WordPress backends.
my.WordPress.net turns WordPress Playground into a workspace that survives a page reload. The site lives in browser storage instead of on a server, and Blueprints handle the setup. Clear your cache without a backup and it is gone.
Vibe-checking search results is how teams end up rebuilding a backend for a system that scores worse than the SQL it replaced. What a real AI search evaluation needs: a golden set, repeated trials, and an ICC check before you ship.
AI infrastructure spending hit nearly $400 billion in 2025 against barely $100 billion of revenue. The skills that survive that correction are the classical ones: causal inference, experiment design, Bayesian reasoning, domain modeling and SPC.
WordPress 7.0 Beta 3 ships 148 fixes and swaps the static AI provider list for the WP AI Client registry. Here is what changed in the connectors screen and how to test it on staging before the April 9 release.
A tool is one capability, a skill is the orchestration around it. Notes on writing agent skills in Python instead of Markdown, and where MCP fits when you build agents outside Claude.