Technology

pgvector

Everything on this site involving pgvector — projects, articles, research and tools.

Evaluation

Six RAG Chunking Strategies Compared

Fixed, recursive, semantic, structural, sentence-window and parent-document chunking measured on retrieval recall across three corpora.

IntermediateDifficulty: IntermediatePython · Ragas · pgvector
Notebook
AI Systems

AI Research & Fact-Checking System

A research agent that decomposes a claim, gathers evidence from multiple sources, cross-checks agreement between them, and refuses to answer when the evidence is thin.

AdvancedDifficulty: Advanced~20h buildPython · LangGraph · Claude API
VideoCode
AI Systems

RAG Evaluation Lab

Most RAG systems are tuned by vibes. This is a reproducible harness that measures retrieval and generation separately, so you can see which half is failing.

IntermediateDifficulty: Intermediate~12h buildPython · Ragas · DuckDB
Code
AI Systems$149

RAG Evaluation System

A production-ready evaluation harness: configuration sweeps, retrieval and generation metrics measured separately, and CI regression gates.

v2.1.0Python · Ragas · DuckDB
UDEMY$119

Production AI Engineering: RAG, Agents, Evals & MCP

Retrieval that holds up, agents that fail safely, evaluation that catches regressions, and MCP for tool integration.

AdvancedDifficulty: Advanced★ 4.914h480 studentsPython · LangGraph · Ragas