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austxu/README.md

Austin Xu

researcher / engineer · Los Angeles

I build systems and experiments across inference, agents, and optimization at StarAI @ UCLA.

austxu.dev · LinkedIn · X

Selected work

Reproducible Vulkan optimization evidence for Llama 2 7B Q4_0. The retained profile improved decode from 75.23 → 85.71 tokens/s with flash attention off.

Repository · Results

Coup RL bot live browser interface

Deep RL strategies for the card game Coup, with bluffing, challenges, counterplay, and a playable browser demo.

Repository · Play the bot

Heston regime lab volatility dashboard

An interactive lab for calibrating the Heston model to SPX options, detecting regime shifts with a hidden Markov model, and visualizing how parameters change across regimes.

Repository

Technical focus

Inference Systems · GPU Kernels · Reinforcement Learning · Agent Evaluation · Systems Optimization · Data Visualization · C++ / ROCm · Python · Research Design

A little more

I’m an undergraduate at UCLA studying Applied Mathematics and Statistics / Data Science. Mathematics first drew me in; building projects made the ideas tangible. That combination keeps pulling me toward machine learning and optimization.

Away from the keyboard: weightlifting, soccer, and piano.

If you’re working on something nearby, say hello.

Pinned Loading

  1. RX-6700XT-Optimization RX-6700XT-Optimization Public

    Reproducible Llama 2 7B Q4_0 Vulkan optimization evidence for AMD Radeon RX 6700 XT

    Python