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Data Science Interview Prep

A single entry point into seven self-contained study sites. Each one is a standalone knowledge base built for interview revision — pick a track below and you'll be routed into its own site, with a ← Study Hub link to come back here.

  • Mathematics


    Probability, inferential statistics, and linear algebra for machine learning — the mathematical groundwork everything else builds on.

    Open Mathematics →

  • Classical ML


    Linear models, trees, ensembles, unsupervised learning, and evaluation metrics — the classical machine learning foundation, end to end.

    Open Classical ML →

  • Deep Learning


    Neural network mechanics, gradient flow, optimization, losses, CNNs, vision and generative models, and sequences with attention.

    Open Deep Learning →

  • LLM Study Notes


    Deep dives across the modern LLM stack: architecture, training, alignment, PEFT, inference, serving, and the 2026 model landscape.

    Open LLM Notes →

  • Agentic AI


    RAG and retrieval, agent loops, LangGraph internals, protocols (MCP/A2A), evaluation, serving, and end-to-end agent system design.

    Open Agentic AI →

  • ML System Design Case Studies


    Twenty worked ML and GenAI system design case studies, each with a full interview transcript and a one-page whiteboard cheat sheet.

    Open Case Studies →

  • Productionizing ML


    Production ML system design, data foundations, training, serving, the production loop, infrastructure, build-vs-buy, and a hands-on implementation masterclass.

    Open Productionizing ML →


How this hub works

Each card opens a separate MkDocs site served from a sub-folder of this one. They share the same theme but keep independent navigation and search. Use the back link in any sub-site's top nav to return here.