Data, models & applied AI, distilled into useful references.
I'm Omar — a data scientist and ML engineer with 26+ years across credit, telecom and EDA. This site is where I keep my cheatsheets and field notes on machine learning, LLMs, agents and the tools I actually use.
Two libraries, one mission
Quick references for fast lookup, long-form articles for deeper understanding.
Cheatsheets
Concise reference guides for the tools and libraries that show up in real data-science and ML work. Skim them, bookmark them, print them.
Browse cheatsheets →Blog & Articles
In-depth articles, capability tours and field notes on emerging AI models and tooling — things I learned from actually running them, not just reading about them.
Read the blog →Latest from the site
A few of the newest entries from both libraries.
🎨 HiDream-O1-Image — Five generation modes & nine diagram styles on a single GPU
A capability tour of the open 8B model: T2I, instruction editing, IP reference, bbox layout, and openpose — end-to-end on an RTX 4090.
Cheatsheet · New📊 bupaR — Business Process Analytics in R
Event logs, process maps, performance metrics, filtering, and the bupaverse ecosystem in one quick reference.
Cheatsheet🤖 OpenAI Agents SDK
Core concepts, agent creation, tools, guardrails, handoffs, and tracing for building AI agent applications.
Cheatsheet🐘 PostgreSQL SQL
Schema commands, joins (illustrated), JSON, views, nested queries, permissions and data types in one place.
About me
I'm a seasoned data scientist and ML engineer with 26+ years of experience. I've contributed to Tribal Credit, Reveel, TA Telecom, Mentor Graphics and IBM — across AI-driven underwriting, algorithm development, analytics and software-testing leadership.
I write and build around: