Yapei Chang | University of Maryland

<!DOCTYPE html> <html lang="en-US"> <head> <title>Yapei Chang | University of Maryland</title> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta name="description" content="Yapei Chang's website"> <meta name="keywords" content="minimal light"> <link rel="canonical" href="https://minimal-light-theme.yliu.me/"/> <link rel="icon" media="(prefers-color-scheme:dark)" href="./assets/img/flavicon-dango.png" type="image/png" /> <link rel="icon" media="(prefers-color-scheme:light)" href="./assets/img/flavicon-dango.png" type="image/png" /> <script src="./assets/js/favicon-switcher.js" type="application/javascript"></script> <link rel=stylesheet href=https://cdnjs.cloudflare.com/ajax/libs/academicons/1.8.6/css/academicons.min.css integrity="sha256-uFVgMKfistnJAfoCUQigIl+JfUaP47GrRKjf6CTPVmw=" crossorigin=anonymous> <link rel=stylesheet href=https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/all.min.css integrity="sha256-+N4/V/SbAFiW1MPBCXnfnP9QSN3+Keu+NlB+0ev/YKQ=" crossorigin=anonymous> <link rel="stylesheet" href="./assets/css/font.css"> <link rel="stylesheet" href="./assets/css/style-no-dark-mode.css"> <link rel="stylesheet" href="./assets/css/publications-no-dark-mode.css"> </head> <body> <div class="wrapper"> <header> <a class="image avatar"><img src="./assets/img/pfp.png" alt="avatar" /></a> <h1>Yapei Chang</h1> <h2>常雅培</h2> <position style="font-size:1.10rem;">PhD Student</position> <br> <a href="" rel="noopener"><autocolor>University of Maryland</autocolor></a> <br> <email>yapeic (at) umd.edu</email> <br> <br> <div class="social-icons"> <a style="margin: 0 5px 0 0" href="https://scholar.google.com/citations?user=qCjnm-UAAAAJ"> <i class="ai ai-google-scholar" style="font-size:1.2rem"></i> </a> <a style="margin: 0 5px 0 0" href="assets/files/CV.pdf"> <i class="ai ai-cv" style="font-size:1.3rem;"></i> </a> <a style="margin: 0 5px 0 0" href="https://github.com/lilakk"> <i class="fab fa-github"></i> </a> <a style="margin: 0 5px 0 0" href="https://www.linkedin.com/in/ella-yapei-chang/"> <i class="fab fa-linkedin"></i> </a> <a style="margin: 0 0 0 0" href="https://twitter.com/YapeiChang"> <i class="fab fa-twitter"></i> </a> </div> <br> </header> <section> <h2 id="about-me">About Me</h2> <p>Hi! I’m a third-year PhD student at the <a href="http://www.cs.umd.edu/">University of Maryland, College Park</a>, advised by <a href="https://people.cs.umass.edu/~miyyer/">Prof. Mohit Iyyer</a> with a research focus on NLP. Prior to transferring to UMD, I was affiliated with the <a href="https://nlp.cs.umass.edu/">UMass Amherst NLP Lab</a>, where I was also advised by Prof. Iyyer. My current research interests include but are not limited to:</p> <ul> <li>Enabling language models to better follow instructions given long inputs</li> <li>Building more robust and challenging benchmarks for long-context language models</li> <li>LLM watermarking and detection</li> </ul> <p>I like <strong>gaming</strong> and tinkering with <strong>mechanical keyboards</strong> in the free time I aggregate from my fluctuating work-life balance (it’s a work in progress ┐(‘～` )┌).</p> <h2 id="latest-timeline">Latest Timeline</h2> <ul> <li><strong>[Jan. 2025]</strong> Moved to UMD, College Park!</li> <li><strong>[Nov. 2024]</strong> ✈ Attended <a href="https://2024.emnlp.org/">EMNLP</a> to present <a href="https://arxiv.org/pdf/2406.14517">PostMark</a>, a paper on watermarking blackbox LLM outputs.</li> <li><strong>[Oct. 2024]</strong> ✈ Attended <a href="https://2024.colmweb.org/">COLM</a> to present <a href="https://openreview.net/pdf?id=YfHxQSoaWU">FABLES</a>, a paper on faithfulness evaluation in book-length summarization.   </li> <li><strong>[May 2024]</strong> ✈ Attended <a href="https://iclr.cc/Conferences/2024">ICLR</a> and gave an oral presentation for <a href="https://openreview.net/pdf?id=7Ttk3RzDeu">BooookScore</a>, a paper on book-length summarization and finegrained coherence evaluation.      </li> </ul> <h2 id="publications" style="margin: 2px 0px -15px;">Publications</h2> <div class="publications"> <ol class="bibliography"> <li> <div class="pub-row"> <div class="col-sm-3 abbr" style="position: relative;padding-right: 15px;padding-left: 15px;"> <img src="./assets/img/postmark.png" class="teaser img-fluid z-depth-1" style="width=100;height=40%" /> <abbr class="badge">EMNLP</abbr> </div> <div class="col-sm-9" style="position: relative;padding-right: 15px;padding-left: 20px;"> <div class="title"><a href="https://aclanthology.org/2024.emnlp-main.506.pdf">PostMark: A Robust Blackbox Watermark for Large Language Models</a></div> <div class="author"><strong>Yapei Chang</strong>, Kalpesh Krishna, Amir Houmansadr, John Wieting, Mohit Iyyer</div> <div class="periodical"><em>Conference on Empirical Methods in Natural Language Processing <strong>(EMNLP)</strong>, 2024.</em> </div> <div class="links"> <a href="https://aclanthology.org/2024.emnlp-main.506.pdf" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">PDF</a> <a href="https://github.com/lilakk/PostMark" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">Code</a> </div> </div> </div> </li> <br /> <li> <div class="pub-row"> <div class="col-sm-3 abbr" style="position: relative;padding-right: 15px;padding-left: 15px;"> <img src="./assets/img/fables.png" class="teaser img-fluid z-depth-1" style="width=100;height=40%" /> <abbr class="badge">COLM</abbr> </div> <div class="col-sm-9" style="position: relative;padding-right: 15px;padding-left: 20px;"> <div class="title"><a href="https://openreview.net/pdf?id=YfHxQSoaWU">FABLES: Evaluating faithfulness and content selection in book-length summarization</a></div> <div class="author">Yekyung Kim, <strong>Yapei Chang</strong>, Marzena Karpinska, Aparna Garimella, Varun Manjunatha, Kyle Lo, Tanya Goyal, Mohit Iyyer</div> <div class="periodical"><em>Conference on Language Modeling <strong>(COLM)</strong>, 2024.</em> </div> <div class="links"> <a href="https://openreview.net/pdf?id=YfHxQSoaWU" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">PDF</a> <a href="https://github.com/mungg/FABLES" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">Code</a> <a href="https://lilakk.github.io/book-summarization.html" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">Project Page</a> </div> </div> </div> </li> <br /> <li> <div class="pub-row"> <div class="col-sm-3 abbr" style="position: relative;padding-right: 15px;padding-left: 15px;"> <img src="./assets/img/booookscore.png" class="teaser img-fluid z-depth-1" style="width=100;height=40%" /> <abbr class="badge">ICLR</abbr> </div> <div class="col-sm-9" style="position: relative;padding-right: 15px;padding-left: 20px;"> <div class="title"><a href="https://openreview.net/pdf?id=7Ttk3RzDeu">BooookScore: A systematic exploration of book-length summarization in the era of LLMs</a></div> <div class="author"><strong>Yapei Chang</strong>, Kyle Lo, Tanya Goyal, Mohit Iyyer</div> <div class="periodical"><em>International Conference on Learning Representations <strong>(ICLR)</strong>, 2024.</em> </div> <div class="links"> <a href="https://openreview.net/pdf?id=7Ttk3RzDeu" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">PDF</a> <a href="https://github.com/lilakk/BooookScore" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">Code</a> <a href="https://lilakk.github.io/book-summarization.html" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">Project Page</a> <strong> <i style="color:#e74d3c">Oral Presentation (Top 1.2%)</i></strong> </div> </div> </div> </li> <br /> <li> <div class="pub-row"> <div class="col-sm-3 abbr" style="position: relative;padding-right: 15px;padding-left: 15px;"> <img src="./assets/img/rankgen.png" class="teaser img-fluid z-depth-1" style="width=100;height=40%" /> <abbr class="badge">EMNLP</abbr> </div> <div class="col-sm-9" style="position: relative;padding-right: 15px;padding-left: 20px;"> <div class="title"><a href="https://aclanthology.org/2022.emnlp-main.15.pdf">RankGen: Improving Text Generation with Large Ranking Models</a></div> <div class="author">Kalpesh Krishna, <strong>Yapei Chang</strong>, John Wieting, Mohit Iyyer</div> <div class="periodical"><em>Conference on Empirical Methods in Natural Language Processing <strong>(EMNLP)</strong>, 2022.</em> </div> <div class="links"> <a href="https://aclanthology.org/2022.emnlp-main.15.pdf" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">PDF</a> <a href="https://github.com/martiansideofthemoon/rankgen" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">Code</a> <strong> <i style="color:#e74d3c">Oral Presentation (Top 21.1%)</i></strong> </div> </div> </div> </li> <br /> <li> <div class="pub-row"> <div class="col-sm-3 abbr" style="position: relative;padding-right: 15px;padding-left: 15px;"> <img src="./assets/img/relic.png" class="teaser img-fluid z-depth-1" style="width=100;height=40%" /> <abbr class="badge">ACL</abbr> </div> <div class="col-sm-9" style="position: relative;padding-right: 15px;padding-left: 20px;"> <div class="title"><a href="https://aclanthology.org/2022.acl-long.517.pdf">RELIC: Retrieving Evidence for Literary Claims</a></div> <div class="author">Katherine Thai, <strong>Yapei Chang</strong>, Kalpesh Krishna, Mohit Iyyer</div> <div class="periodical"><em>Annual Meeting of the Association for Computational Linguistics <strong>(ACL)</strong>, 2022.</em> </div> <div class="links"> <a href="https://aclanthology.org/2022.acl-long.517.pdf" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">PDF</a> <a href="https://github.com/martiansideofthemoon/relic-retrieval" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">Code</a> </div> </div> </div> </li> <br /> <li> <div class="pub-row"> <div class="col-sm-3 abbr" style="position: relative;padding-right: 15px;padding-left: 15px;"> <img src="./assets/img/concept-depend.png" class="teaser img-fluid z-depth-1" style="width=100;height=40%" /> <abbr class="badge">ACS</abbr> </div> <div class="col-sm-9" style="position: relative;padding-right: 15px;padding-left: 20px;"> <div class="title"><a href="http://www.cogsys.org/journal/volume10/article-10-7.pdf">A Broader Range for 'Meaning the Same Thing': Human Against Machine on Hard Paraphrase Detection Tasks</a></div> <div class="author">Jamie C. Macbeth, <strong>Yapei Chang</strong>, Jingyu Gin Chen, Yining Hua, Sandra Grandic, Winnie X. Zheng</div> <div class="periodical"><em>Advances in Cognitive Systems <strong>(ACS)</strong>, 2020.</em> </div> <div class="links"> <a href="http://www.cogsys.org/journal/volume10/article-10-7.pdf" class="btn btn-sm z-depth-0" role="button" target="_blank" style="font-size:12px;">PDF</a> </div> </div> </div> </li> <br /> </ol> </div> <h2 id="projects" style="margin: 2px 0px -15px;">Projects</h2> <div class="publications"> <ol class="bibliography"> <li> <div class="pub-row"> <div class="col-sm-3 abbr" style="position: relative;padding-right: 15px;padding-left: 15px;"> <img src="./assets/img/book-summarization.png" class="teaser img-fluid z-depth-1" style="width=100;height=40%" /> </div> <div class="col-sm-9" style="position: relative; padding-right: 15px; padding-left: 15px;"> <div class="title"><a href="/book-summarization.html">📚 Book summarization with LLMs</a></div> </div> </div> </li> <br /> </ol> </div>  <br> </section> <footer> </footer> </div> <script src="/assets/js/scale.fix.js"></script> </body> </html>

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Yapei Chang | University of Maryland