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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Yixin Huang | LLM Systems & Evaluation</title>
<meta name="description" content="Yixin Huang - Research Assistant at UCSD Hao AI Lab. Working on LLM systems, evaluation, and GPU-accelerated ML infrastructure.">
<script type="application/ld+json">
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"@type": "Person",
"name": "Yixin Huang",
"jobTitle": "Research Assistant",
"affiliation": {
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"name": "UCSD Hao AI Lab"
},
"url": "https://yixinhuang48.github.io",
"sameAs": [
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]
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</head>
<body>
<!-- Navigation -->
<nav class="navbar">
<div class="nav-container">
<a href="#" class="nav-logo">YH</a>
<ul class="nav-links">
<li><a href="#about">About</a></li>
<li><a href="#projects">Projects</a></li>
<li><a href="#visitors">Visitors</a></li>
<li><a href="#blog">Blog</a></li>
<li><a href="#announcements">Announcements</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
<button class="nav-toggle" aria-label="Toggle navigation">
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</nav>
<!-- Hero Section -->
<section class="hero">
<div class="hero-bg"></div>
<div class="hero-top">
<div class="hero-photo">
<img src="my_photo_small.jpg" alt="Yixin Huang" class="profile-photo">
</div>
</div>
<div class="hero-content">
<div class="hero-text">
<p class="hero-greeting">Hi, I'm</p>
<h1 class="hero-name">Yixin Huang</h1>
<div class="hero-typing">
<span class="typing-text"></span>
<span class="cursor">|</span>
</div>
<p class="hero-description">
Research Assistant at <a href="https://hao-ai-lab.github.io/" target="_blank">UCSD Hao AI Lab</a><br>
M.S. Computer Science Student • San Diego, CA
</p>
<div class="hero-buttons">
<a href="#projects" class="btn btn-primary">View Projects</a>
<a href="yixin_resume.pdf" target="_blank" class="btn btn-secondary">📄 Resume</a>
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<span class="dot red"></span>
<span class="dot yellow"></span>
<span class="dot green"></span>
<span class="filename">research.py</span>
</div>
<pre class="code-content"><code><span class="keyword">class</span> <span class="class-name">Researcher</span>:
<span class="keyword">def</span> <span class="function">__init__</span>(<span class="param">self</span>):
<span class="param">self</span>.focus = [
<span class="string">"LLM Systems"</span>,
<span class="string">"Agent Evaluation"</span>,
<span class="string">"GPU Infrastructure"</span>
]
<span class="param">self</span>.tools = [
<span class="string">"vLLM"</span>, <span class="string">"SGLang"</span>,
<span class="string">"NeMo RL"</span>, <span class="string">"Ray"</span>
]
<span class="keyword">def</span> <span class="function">build</span>(<span class="param">self</span>):
<span class="keyword">return</span> <span class="string">"🚀 Innovation"</span></code></pre>
</div>
</div>
</div>
<div class="scroll-indicator">
<span>Scroll</span>
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</div>
</section>
<!-- About Section -->
<section id="about" class="section about">
<div class="container">
<h2 class="section-title">About Me</h2>
<div class="about-content">
<div class="about-text">
<p class="quote">"A journey of a thousand miles begins with a single step." — Confucius</p>
<p>I work on <strong>LLM systems, evaluation, and GPU-accelerated ML infrastructure</strong>. Currently an M.S. Computer Science student at UC San Diego (GPA: 4.0), previously B.A. in Computer Science & Applied Mathematics from UC Berkeley (GPA: 3.86).</p>
<h3>Research Interests</h3>
<ul class="interests-list">
<li>LLM evaluation & benchmarks (agents, games, scientific reasoning)</li>
<li>Large-scale training & inference systems (FSDP, vLLM, Ray, Slurm)</li>
<li>GPU efficiency, memory systems, and model parallelism</li>
<li>Reinforcement learning for agents (GRPO, NeMo-Gym)</li>
</ul>
<h3>Current Focus</h3>
<ul class="focus-list">
<li>🔄 Scaling agent evaluation with interactive environments</li>
<li>⚡ Training & serving efficiency on multi-GPUs</li>
<li>🎯 Reward modeling and RL for LLM agents</li>
</ul>
<div class="about-skills">
<h3>Tech Stack</h3>
<div class="tech-tags">
<span class="tag">Python</span>
<span class="tag">PyTorch</span>
<span class="tag">CUDA</span>
<span class="tag">vLLM</span>
<span class="tag">SGLang</span>
<span class="tag">NeMo RL</span>
<span class="tag">Areal</span>
<span class="tag">Ray</span>
<span class="tag">Docker</span>
<span class="tag">Slurm</span>
<span class="tag">FSDP</span>
<span class="tag">DeepSpeed</span>
<span class="tag">Linux</span>
<span class="tag">Git</span>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- Projects Section -->
<section id="projects" class="section projects">
<div class="container">
<h2 class="section-title">Featured Projects</h2>
<div class="projects-grid">
<article class="project-card featured">
<div class="project-icon">🎮</div>
<div class="project-content">
<div class="project-header">
<h3>GamingAgent</h3>
<span class="project-stars">⭐ 843</span>
</div>
<p>LLM/VLM gaming agents and model evaluation through games. Evaluates long-horizon reasoning, memory & perception in Doom, Sokoban, Tetris, and Pokémon Red.</p>
<div class="project-tags">
<span>Python</span>
<span>LLM</span>
<span>Evaluation</span>
</div>
<a href="https://github.com/lmgame-org/GamingAgent" target="_blank" class="project-link">View Project →</a>
</div>
</article>
<article class="project-card">
<div class="project-icon">🔬</div>
<div class="project-content">
<div class="project-header">
<h3>VideoScience</h3>
<span class="project-badge">CVPR</span>
</div>
<p>Benchmark for scientific correctness in text-to-video models. Evaluates physics & chemistry concepts using VLM-as-Judge scoring.</p>
<div class="project-tags">
<span>Python</span>
<span>Benchmark</span>
<span>Video</span>
</div>
<a href="https://github.com/hao-ai-lab/VideoScience" target="_blank" class="project-link">View Project →</a>
</div>
</article>
<article class="project-card">
<div class="project-icon">🤖</div>
<div class="project-content">
<div class="project-header">
<h3>NVIDIA NeMo Gym</h3>
<span class="project-stars">⭐ 603</span>
</div>
<p>Build RL environments for LLM training. Integrating Sokoban & Tetris for scalable RL training, reward profiling, and GRPO.</p>
<div class="project-tags">
<span>Python</span>
<span>RL</span>
<span>NVIDIA</span>
</div>
<a href="https://github.com/NVIDIA-NeMo/Gym" target="_blank" class="project-link">View Project →</a>
</div>
</article>
<article class="project-card">
<div class="project-icon">🌐</div>
<div class="project-content">
<div class="project-header">
<h3>lmenv</h3>
</div>
<p>LLM environment framework for interactive evaluation. Standardized interfaces for game-based agent testing.</p>
<div class="project-tags">
<span>Python</span>
<span>Framework</span>
</div>
<a href="https://github.com/lmgame-org/lmenv" target="_blank" class="project-link">View Project →</a>
</div>
</article>
</div>
</div>
</section>
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<section id="visitors" class="section visitors">
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<h2 class="section-title">Global Visitors</h2>
<p class="section-subtitle">A privacy-friendly snapshot of where people have visited this site.</p>
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<h3>Visitor Map</h3>
<p>Live widget powered by MapMyVisitors</p>
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<span class="map-pill">Live</span>
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<div class="legend-item"><span class="legend-dot"></span> Live traffic</div>
<div class="legend-item"><span class="legend-dot muted"></span> Historical visits</div>
</div>
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</div>
</section>
<!-- Blog Section -->
<section id="blog" class="section blog">
<div class="container">
<h2 class="section-title">Blog</h2>
<p class="section-subtitle">Notes on LLM systems, evaluation, and research workflows.</p>
<div class="blog-grid">
<article class="blog-card">
<div class="blog-date">Jan 29, 2026</div>
<h3>Context & Learn in Public / 语境与公开学习</h3>
<p>A bilingual reflection on why context matters and why learning in public compounds over time.</p>
<div class="blog-tags">
<span>Bilingual</span>
<span>Reflection</span>
</div>
<a href="blog/context-learn-in-public.html" class="blog-link" aria-label="Read Context and Learn in Public">Read →</a>
</article>
<article class="blog-card coming-soon">
<div class="blog-date">Coming soon</div>
<h3>Deploying efficient inference stacks</h3>
<p>Notes on GPU scheduling, memory tuning, and vLLM/SGLang integration.</p>
<div class="blog-tags">
<span>Systems</span>
<span>GPU</span>
</div>
<span class="blog-link muted" aria-hidden="true">Drafting</span>
</article>
</div>
</div>
</section>
<!-- Announcements Section -->
<section id="announcements" class="section announcements">
<div class="container">
<h2 class="section-title">Announcements</h2>
<p class="section-subtitle">Short updates on new posts, releases, and talks.</p>
<div class="announcements-list">
<article class="announcement-card">
<div class="announcement-date">Jan 29, 2026</div>
<div class="announcement-content">
<h3>New blog: Context & Learn in Public</h3>
<p>Published a bilingual reflection on why context matters in research and why sharing work-in-progress helps over time.</p>
<a class="announcement-link" href="blog/context-learn-in-public.html">Read the post →</a>
</div>
</article>
<article class="announcement-card">
<div class="announcement-date">Jan 29, 2026</div>
<div class="announcement-content">
<h3>VideoScience paper on arXiv</h3>
<p>Our evaluation work is now on arXiv, covering scientific reasoning benchmarks for video models.</p>
<a class="announcement-link" href="https://arxiv.org/pdf/2512.02942" target="_blank" rel="noopener">Read the paper →</a>
</div>
</article>
<article class="announcement-card">
<div class="announcement-date">Jan 29, 2026</div>
<div class="announcement-content">
<h3>VideoScience-Bench leaderboard live</h3>
<p>Check out the public leaderboard tracking model performance on the VideoScience-Bench tasks.</p>
<a class="announcement-link" href="https://huggingface.co/spaces/lmgame/videoscience-bench" target="_blank" rel="noopener">View leaderboard →</a>
</div>
</article>
<article class="announcement-card muted">
<div class="announcement-date">Coming soon</div>
<div class="announcement-content">
<h3>Research updates</h3>
<p>Upcoming paper releases and project milestones will be posted here.</p>
</div>
</article>
</div>
</div>
</section>
<!-- Contact Section -->
<section id="contact" class="section contact">
<div class="container">
<h2 class="section-title">Get in Touch</h2>
<p class="section-subtitle">Feel free to reach out for collaborations, discussions, or just to say hi!</p>
<div class="contact-links">
<a href="mailto:yixinhuang48@gmail.com" class="contact-card">
<svg viewBox="0 0 24 24" fill="currentColor"><path d="M20 4H4c-1.1 0-1.99.9-1.99 2L2 18c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 4l-8 5-8-5V6l8 5 8-5v2z"/></svg>
<span>Email</span>
</a>
<a href="https://github.com/yixinhuang48" target="_blank" class="contact-card">
<svg viewBox="0 0 24 24" fill="currentColor"><path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/></svg>
<span>GitHub</span>
</a>
<a href="https://scholar.google.com/citations?user=g3LbHe4AAAAJ&hl=en" target="_blank" class="contact-card">
<svg viewBox="0 0 24 24" fill="currentColor"><path d="M12 3L1 9l11 6 9-4.91V17h2V9L12 3zm0 13.25L4.5 12 12 7.75 19.5 12 12 16.25zM6 15.09v2.66l6 3.25 6-3.25v-2.66l-6 3.25-6-3.25z"/></svg>
<span>Scholar</span>
</a>
<a href="https://www.zhihu.com/people/hola-98-83" target="_blank" class="contact-card">
<svg viewBox="0 0 24 24" fill="currentColor"><path d="M5.721 0C2.251 0 0 2.25 0 5.719V18.28C0 21.751 2.252 24 5.721 24h12.56C21.751 24 24 21.75 24 18.281V5.72C24 2.249 21.75 0 18.281 0zm1.964 4.078c-.271.73-.5 1.434-.68 2.11h4.587c.545-.006.445 1.168.445 1.171H9.384a58.104 58.104 0 0 0-.112 3.797h2.712c.388.023.393 1.251.393 1.251H9.271c0 .936.097 1.631.199 2.344.259 1.822 2.132 3.624 2.132 3.624-.903.64-2.473.906-2.473.906.903-1.117.839-2.074.839-2.074-.645.748-1.757 1.336-2.473 1.578-1.021.345-3.143.746-3.143.746 1.301-.903 2.474-2.344 2.474-2.344-.129-.043-1.59-.86-1.59-2.903 0-2.044 1.032-4.473 1.032-4.473H4.59V9.157h2.903V7.359H4.59V6.187h2.474s.516-1.394 1.549-2.109h-3.58V2.906h5.438c.558-.015.461 1.172.461 1.172zm7.287.17h1.2v4.592l1.2-.903v1.483l-1.2.903v5.64l1.2-.903v1.482l-1.2.903v2.579h-1.2v-1.675l-3.152 2.391v-1.486l3.152-2.391v-5.64l-3.152 2.391V12.23l3.152-2.39z"/></svg>
<span>Zhihu</span>
</a>
<a href="yixin_resume.pdf" target="_blank" class="contact-card">
<svg viewBox="0 0 24 24" fill="currentColor"><path d="M14 2H6c-1.1 0-1.99.9-1.99 2L4 20c0 1.1.89 2 1.99 2H18c1.1 0 2-.9 2-2V8l-6-6zm2 16H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z"/></svg>
<span>Resume</span>
</a>
</div>
<div class="contact-note">
<p>📧 <strong>Recruiters:</strong> Feel free to reach out at <a href="mailto:yixinhuang48@gmail.com" style="color: var(--accent-primary);">yixinhuang48@gmail.com</a></p>
<p>💬 Open an issue or discussion on any of my repositories!</p>
</div>
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