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bpy13/README.md

Hi, I'm Brian Yu

PhD astrophysicist (UCL) and Python engineer in Hong Kong. At UBS I designed and built a LangGraph multi-agent backend used by ~4,000 Client Advisors. Before that I took fraud-detection and handwritten-OCR models into production at ASTRI.

Selected work

  • london-cre-monitor – LangGraph + Claude agent that writes cited, chart-backed London office-market briefs
  • big2 – Big Two solver and RL lab: Rust engine, ISMCTS search, PPO/DMC self-play
  • stock-advisor – buy/sell/hold signals with per-indicator backtests

www.linkedin.com/in/by2 · briandyu@gmail.com

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  1. london-cre-monitor london-cre-monitor Public

    AI agent that monitors the London office market: LangGraph + Claude research skills produce cited, chart-backed market briefs (rents, vacancy, take-up, supply, macro, news), on a schedule or via ch…

    Python

  2. stock-advisor stock-advisor Public

    Stock buy/sell/hold signals from price history, plus a news event module: collects free news sources, finds similar past events, backtests market reactions with FinBERT and regression, and sends Te…

    Python

  3. big2 big2 Public

    Big Two (Cantonese Big 2) solver and RL lab: Rust rules engine, ISMCTS search solver, DMC/PPO/distilled networks, and a React study-mode UI that shows the best moves with win rates.

    Rust

  4. hk-mahjong-lab hk-mahjong-lab Public

    Hong Kong mahjong (香港麻雀) solver and RL lab: Rust rules engine, faan-aware shanten, calibrated danger model, PIMC search, DMC/PPO self-play, and a Traditional Chinese web UI with a study mode.

    Rust

  5. hk-estate hk-estate Public

    Personal research tool: Hong Kong residential transactions, listings and price-growth analysis

    Python

  6. outflow outflow Public

    Semi-analytic galactic outflow model (Yu et al. 2020, MNRAS 492, 3179): thermal, radiation and cosmic-ray driven winds

    Python 1 1