https://liangyancheng.com/

1<!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title> Yancheng Liang </title> <meta name="author" content="Yancheng Liang"> <meta name="description" content="A simple, whitespace theme for academics. Based on [*folio](https://github.com/bogoli/-folio) design. "> <meta name="keywords" content="jekyll, jekyll-theme, academic-website, portfolio-website"> <link rel="stylesheet" href="/assets/css/bootstrap.min.css?a4b3f509e79c54a512b890d73235ef04"> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/css/mdb.min.css" integrity="sha256-jpjYvU3G3N6nrrBwXJoVEYI/0zw8htfFnhT9ljN3JJw=" crossorigin="anonymous"> <link defer rel="stylesheet" href="/assets/css/academicons.min.css?f0b7046b84e425c55f3463ac249818f5"> <link defer rel="stylesheet" type="text/css" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700|Roboto+Slab:100,300,400,500,700|Material+Icons&amp;display=swap"> <link defer rel="stylesheet" href="/assets/css/jekyll-pygments-themes-github.css?591dab5a4e56573bf4ef7fd332894c99" media="" id="highlight_theme_light"> <link rel="shortcut icon" href="data:image/svg+xml,&lt;svg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20100%20100%22&gt;&lt;text%20y=%22.9em%22%20font-size=%2290%22&gt;%E2%9A%9B%EF%B8%8F&lt;/text&gt;&lt;/svg&gt;"> <link rel="stylesheet" href="/assets/css/main.css?d41d8cd98f00b204e9800998ecf8427e"> <link rel="canonical" href="https://lych1233.github.io/"> 

1<script src="/assets/js/theme.js?9a0c749ec5240d9cda97bc72359a72c0"></script>

1 <link defer rel="stylesheet" href="/assets/css/jekyll-pygments-themes-native.css?5847e5ed4a4568527aa6cfab446049ca" media="none" id="highlight_theme_dark"> 

1<script>initTheme();</script>

1 </head> <body class="fixed-top-nav "> <header> <nav id="navbar" class="navbar navbar-light navbar-expand-sm fixed-top" role="navigation"> <div class="container"> <button class="navbar-toggler collapsed ml-auto" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar top-bar"></span> <span class="icon-bar middle-bar"></span> <span class="icon-bar bottom-bar"></span> </button> <div class="collapse navbar-collapse text-right" id="navbarNav"> <ul class="navbar-nav ml-auto flex-nowrap"> <li class="nav-item active"> <a class="nav-link" href="/">about <span class="sr-only">(current)</span> </a> </li> <li class="nav-item "> <a class="nav-link" href="/publications/">publications </a> </li> <li class="toggle-container"> <button id="light-toggle" title="Change theme"> <i class="ti ti-sun-moon" id="light-toggle-system"></i> <i class="ti ti-moon-filled" id="light-toggle-dark"></i> <i class="ti ti-sun-filled" id="light-toggle-light"></i> </button> </li> </ul> </div> </div> </nav> <progress id="progress" value="0"> <div class="progress-container"> <span class="progress-bar"></span> </div> </progress> </header> <div class="container mt-5" role="main"> <div class="post"> <header class="post-header"> <h1 class="post-title"> <span class="font-weight-bold">Yancheng</span> Liang </h1> <p class="desc">CSE Ph.D. Student, University of Washington | Reinforcement Learning, Multi-agent Systems</p> </header> <article> <div class="profile float-right"> <figure> <picture> <source class="responsive-img-srcset" srcset="/assets/img/portrait_1-480.webp 480w,/assets/img/portrait_1-800.webp 800w,/assets/img/portrait_1-1400.webp 1400w," type="image/webp" sizes="(min-width: 930px) 270.0px, (min-width: 576px) 30vw, 95vw"> <img src="/assets/img/portrait_1.jpg?4b90b4d6cfd66a7a004c076fafeede82" class="img-fluid z-depth-1 rounded" width="100%" height="auto" alt="portrait_1.jpg" loading="eager" onerror="this.onerror=null; $('.responsive-img-srcset').remove();"> </source></picture> </figure> <div class="more-info"> <p>Yancheng Liang</p> <p>[email protected]</p> </div> </div> <div class="clearfix"> <p>My research interest lies in exploring the <strong>unique intelligence that emerges from collective/social behaviors</strong> such as cooperation, adaptation, imitation, teaching, confrontation and so on. I am particularly focused on <strong>applying machine learning techniques—especially reinforcement learning—to study such multi-agent systems</strong>. This also involves leveraging tools from game theory, theoretical aspects of reinforcement learning, agent modeling, and analytical models derived from social sciences.</p> <p>I am currently pursuing a Ph.D. at <a href="https://www.cs.washington.edu/" rel="external nofollow noopener" target="_blank">University of Washington, CSE</a>, co-advised by <a href="https://simonshaoleidu.com" rel="external nofollow noopener" target="_blank">Simon Shaolei Du</a> and <a href="https://natashajaques.ai" rel="external nofollow noopener" target="_blank">Natasha Jaques</a>. Before that, I completed my undergraduate studies at <a href="https://iiis.tsinghua.edu.cn/en/" rel="external nofollow noopener" target="_blank">Tsinghua University, Institute for Interdisciplinary Information Sciences (Yao Class)</a>, guided by <a href="https://jxwuyi.weebly.com/" rel="external nofollow noopener" target="_blank">Yi Wu</a>.</p> </div> <h2> <a href="/news/" style="color: inherit">news</a> </h2> <div class="news"> <div class="table-responsive" style="max-height: 60vw"> <table class="table table-sm table-borderless"> <tr> <th scope="row" style="width: 20%">Jan 27, 2026</th> <td> One paper accepcted by ICLR 2026! </td> </tr> <tr> <th scope="row" style="width: 20%">Jun 18, 2025</th> <td> One paper accepcted by ICML 2025 as an oral paper! </td> </tr> <tr> <th scope="row" style="width: 20%">Sep 25, 2024</th> <td> One paper accepcted by NeurIPS 2024! </td> </tr> <tr> <th scope="row" style="width: 20%">Jan 04, 2024</th> <td> Join University of Washington as a CSE Ph.D. student! </td> </tr> </table> </div> </div> <h2> <a href="/publications/" style="color: inherit">selected publications</a> </h2> <div class="publications"> <ol class="bibliography"> <li> <div class="row"> <div class="col col-sm-2 abbr"> <abbr class="badge rounded w-100" style="background-color:#00369f"> <a href="https://iclr.cc/Conferences/2025" rel="external nofollow noopener" target="_blank">ICLR 2026</a> </abbr> </div> <div id="chaudhary2025improving" class="col-sm-8"> <div class="title">Improving Human-AI Coordination through Adversarial Training and Generative Models</div> <div class="author"> Paresh Chaudhary, Yancheng Liang, Daphne Chen, Simon S Du, and Natasha Jaques </div> <div class="periodical"> <em>The Fourteenth International Conference on Learning Representations</em>, 2025 </div> <div class="periodical"> </div> <div class="links"> <a href="http://arxiv.org/abs/2504.15457" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">arXiv</a> <a href="https://github.com/pareshrchaudhary/goat_overcooked" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">Code</a> <a href="https://sites.google.com/view/goat-2025/home" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">Website</a> </div> </div> </div> </li> <li> <div class="row"> <div class="col col-sm-2 abbr"> <abbr class="badge rounded w-100" style="background-color:#00369f"> <a href="https://icml.cc/Conferences/2025" rel="external nofollow noopener" target="_blank">ICML 2025</a> </abbr> </div> <div id="jhacross" class="col-sm-8"> <div class="title">Cross-environment Cooperation Enables Zero-shot Multi-agent Coordination</div> <div class="author"> Kunal Jha, Wilka Carvalho, Yancheng Liang, Simon Shaolei Du, Max Kleiman-Weiner<sup>*</sup>, and Natasha Jaques<sup>*</sup> </div> <div class="periodical"> <em>Forty-second International Conference on Machine Learning (Oral)</em>, 2025 </div> <div class="periodical"> </div> <div class="links"> <a href="http://arxiv.org/abs/2504.12714" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">arXiv</a> <a href="https://github.com/KJha02/crossEnvCooperation" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">Code</a> </div> </div> </div> </li> <li> <div class="row"> <div class="col col-sm-2 abbr"> <abbr class="badge rounded w-100" style="background-color:#00369f"> <a href="https://neurips.cc/Conferences/2024" rel="external nofollow noopener" target="_blank">NeurIPS 2024</a> </abbr> </div> <div id="liang2024learning" class="col-sm-8"> <div class="title">Learning to Cooperate with Humans using Generative Agents</div> <div class="author"> Yancheng Liang, Daphne Chen, Abhishek Gupta, Simon Shaolei Du<sup>*</sup>, and Natasha Jaques<sup>*</sup> </div> <div class="periodical"> <em>Advances in Neural Information Processing Systems, 2024</em>, 2024 </div> <div class="periodical"> </div> <div class="links"> <a href="http://arxiv.org/abs/2411.13934" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">arXiv</a> <a href="/assets/pdf/NIPS2024OvercookedZSC.pdf" class="btn btn-sm z-depth-0" role="button">PDF</a> <a href="https://github.com/lych1233/GAMMA-human-ai-collaboration" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">Code</a> <a href="https://sites.google.com/view/human-ai-gamma-2024" class="btn btn-sm z-depth-0" role="button" rel="external nofollow noopener" target="_blank">Website</a> </div> </div> </div> </li> </ol> </div> <div class="social"> <div class="contact-icons"> <a href="mailto:%79%61%6E%63%68%65%6E%67@%63%73.%77%61%73%68%69%67%6E%74%6F%6E.%65%64%75" title="email"><i class="fa-solid fa-envelope"></i></a> <a href="https://scholar.google.com/citations?user=TR6GqIgAAAAJ" title="Google Scholar" rel="external nofollow noopener" target="_blank"><i class="ai ai-google-scholar"></i></a> <a href="https://github.com/lych1233" title="GitHub" rel="external nofollow noopener" target="_blank"><i class="fa-brands fa-github"></i></a> <a href="https://twitter.com/liangyanchenggg" title="X" rel="external nofollow noopener" target="_blank"><i class="fa-brands fa-x-twitter"></i></a> </div> <div class="contact-note">You can even add a little note about which of these is the best way to reach you. </div> </div> </article> </div> </div> <footer class="fixed-bottom" role="contentinfo"> <div class="container mt-0"> © Copyright 2026 Yancheng Liang. Powered by <a href="https://jekyllrb.com/" target="_blank" rel="external nofollow noopener">Jekyll</a> with <a href="https://github.com/alshedivat/al-folio" rel="external nofollow noopener" target="_blank">al-folio</a> theme. Hosted by <a href="https://pages.github.com/" target="_blank" rel="external nofollow noopener">GitHub Pages</a>. Photos from <a href="https://unsplash.com" target="_blank" rel="external nofollow noopener">Unsplash</a>. </div> </footer> 

1<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/jquery.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>

1 

1<script src="/assets/js/bootstrap.bundle.min.js"></script>

1 

1<script src="https://cdn.jsdelivr.net/npm/[email protected]/js/mdb.min.js" integrity="sha256-NdbiivsvWt7VYCt6hYNT3h/th9vSTL4EDWeGs5SN3DA=" crossorigin="anonymous"></script>

1 

1<script defer src="https://cdn.jsdelivr.net/npm/[email protected]/dist/masonry.pkgd.min.js" integrity="sha256-Nn1q/fx0H7SNLZMQ5Hw5JLaTRZp0yILA/FRexe19VdI=" crossorigin="anonymous"></script>

1 

1<script defer src="https://cdn.jsdelivr.net/npm/[email protected]/imagesloaded.pkgd.min.js" integrity="sha256-htrLFfZJ6v5udOG+3kNLINIKh2gvoKqwEhHYfTTMICc=" crossorigin="anonymous"></script>

1 

1<script defer src="/assets/js/masonry.js" type="text/javascript"></script>

1 

1<script defer src="https://cdn.jsdelivr.net/npm/[email protected]/dist/medium-zoom.min.js" integrity="sha256-ZgMyDAIYDYGxbcpJcfUnYwNevG/xi9OHKaR/8GK+jWc=" crossorigin="anonymous"></script>

1 

1<script defer src="/assets/js/zoom.js?85ddb88934d28b74e78031fd54cf8308"></script>

1 

1<script src="/assets/js/no_defer.js?2781658a0a2b13ed609542042a859126"></script>

1 

1<script defer src="/assets/js/common.js?e0514a05c5c95ac1a93a8dfd5249b92e"></script>

1 

1<script defer src="/assets/js/copy_code.js?12775fdf7f95e901d7119054556e495f" type="text/javascript"></script>

1 

1<script defer src="/assets/js/jupyter_new_tab.js?d9f17b6adc2311cbabd747f4538bb15f"></script>

1 

1<script async src="https://d1bxh8uas1mnw7.cloudfront.net/assets/embed.js"></script>

1 

1<script async src="https://badge.dimensions.ai/badge.js"></script>

1 

1<script type="text/javascript">window.MathJax={tex:{tags:"ams"}};</script>

1 

1<script defer type="text/javascript" id="MathJax-script" src="https://cdn.jsdelivr.net/npm/[email protected]/es5/tex-mml-chtml.js" integrity="sha256-MASABpB4tYktI2Oitl4t+78w/lyA+D7b/s9GEP0JOGI=" crossorigin="anonymous"></script>

1 

1<script defer src="https://cdnjs.cloudflare.com/polyfill/v3/polyfill.min.js?features=es6" crossorigin="anonymous"></script>

1 

1<script type="text/javascript">function progressBarSetup(){"max"in document.createElement("progress")?(initializeProgressElement(),$(document).on("scroll",function(){progressBar.attr({value:getCurrentScrollPosition()})}),$(window).on("resize",initializeProgressElement)):(resizeProgressBar(),$(document).on("scroll",resizeProgressBar),$(window).on("resize",resizeProgressBar))}function getCurrentScrollPosition(){return $(window).scrollTop()}function initializeProgressElement(){let e=$("#navbar").outerHeight(!0);$("body").css({"padding-top":e}),$("progress-container").css({"padding-top":e}),progressBar.css({top:e}),progressBar.attr({max:getDistanceToScroll(),value:getCurrentScrollPosition()})}function getDistanceToScroll(){return $(document).height()-$(window).height()}function resizeProgressBar(){progressBar.css({width:getWidthPercentage()+"%"})}function getWidthPercentage(){return getCurrentScrollPosition()/getDistanceToScroll()*100}const progressBar=$("#progress");window.onload=function(){setTimeout(progressBarSetup,50)};</script>

1 

1<script src="/assets/js/vanilla-back-to-top.min.js?f40d453793ff4f64e238e420181a1d17"></script>

1 

1<script>addBackToTop();</script>

1 </body> </html>