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<!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> ChangeLing Lab </title> <meta name="author" content="ChangeLing Lab"> <meta name="description" content="The CMU Language Change and Empirical Linguistics Lab "> <meta name="keywords" content="linguistics, computational-linguistics, natural-language-processing, diachronic, phonology, morphology, sociolinguistics"> <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&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,<svg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20100%20100%22><text%20y=%22.9em%22%20font-size=%2290%22>%CA%A7</text></svg>"> <link rel="stylesheet" href="/assets/css/main.css?d41d8cd98f00b204e9800998ecf8427e"> <link rel="canonical" href="https://changelinglab.github.io/"> <script src="/assets/js/theme.js?9a0c749ec5240d9cda97bc72359a72c0"></script> <link defer rel="stylesheet" href="/assets/css/jekyll-pygments-themes-native.css?5847e5ed4a4568527aa6cfab446049ca" media="none" id="highlight_theme_dark"> <script>initTheme();</script> </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="/blog/">blog </a> </li> <li class="nav-item "> <a class="nav-link" href="/publications/">publications </a> </li> <li class="nav-item "> <a class="nav-link" href="/projects/">projects </a> </li> <li class="nav-item "> <a class="nav-link" href="/people/">people </a> </li> <li class="nav-item"> <button id="search-toggle" title="Search" onclick="openSearchModal()"> <span class="nav-link">ctrl k <i class="ti ti-search"></i></span> </button> </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">ChangeLing</span> Lab </h1> <p class="desc">Language Change and Empirical Linguistics at CMU</p> </header> <article> <div class="profile float-right"> <figure> <picture> <source class="responsive-img-srcset" srcset="/assets/img/changeling-480.webp 480w,/assets/img/changeling-800.webp 800w,/assets/img/changeling-1400.webp 1400w," sizes="(min-width: 930px) 270.0px, (min-width: 576px) 30vw, 95vw" type="image/webp"> <img src="/assets/img/changeling.jpg?cbbf6027da1d49a5f66f9a1079d94df1" class="img-fluid z-depth-1 rounded" width="100%" height="auto" alt="changeling.jpg" loading="eager" onerror="this.onerror=null; $('.responsive-img-srcset').remove();"> </source></picture> </figure> <div class="more-info"> <p>5407 Gates Hillman Complex</p> <p>Language Technologies Institute</p> <p>Carnegie Mellon University</p> </div> </div> <div class="clearfix"> <p>ChangeLing Lab is Carnegie Mellon University’s only research lab focused on understanding how languages change, and how these patterns of change shape the way that languages are at any given point in time, <strong>from a computational perspective</strong>. We are interested in phonetics, phonology, and morphology (whether diachronic or synchronic), emergent communication, and have a special concern for the use of language science to benefit people with disabilities.</p> <p>ChangeLing is lead by <a href="https://www.cs.cmu.edu/~dmortens/" rel="external nofollow noopener" target="_blank">David R. Mortensen</a>, an Assistant Research Professor in the Language Technologies Institute. It consists, additionally, of graduate students, former LTI students who still collaborate with David, and visitors.</p> <p>If you are interested in joining ChangeLing, please email David at <a href="mailto:[email protected]">[email protected]</a> with a CV and a description of what work you would like to do with us. Please take the following into account:</p> <ul> <li>We are only concerned with work that has some linguistic angle (either it uses linguistics or it is useful for linguists). Students who are concerned with machine learning for its own sake would be better served by another lab.</li> <li>We are interested in large language models, but only with respect to their language and linguistic reasoning capabilities. Our lab is not a good place to do general, engineering-focused or fundamental research on LLMs.</li> </ul> </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%">Sep 10, 2024</th> <td> Congratulations to Kalvin Chang and David Mortensen for winning an Honorable Mention, Best Paper Award at the Interspeech 2024 Responsible Speech Foundation Models Special Session with their paper “Self-supervised Speech Representations Still Struggle with African American Vernacular English” (joint work with Yi-Hui Chou, Hsuan-Ming Chen, Jiatong Shi, Nicole Holliday, and Odette Scharenborg). </td> </tr> <tr> <th scope="row" style="width: 20%">Sep 06, 2024</th> <td> David Mortensen gave a CLSP Seminar at Johns Hopkins University. </td> </tr> <tr> <th scope="row" style="width: 20%">Aug 14, 2024</th> <td> Congratulations to Liang (Leon) Lu for winning the ACL2024 Best Paper Award (Non-Publicized) with his paper “Self-Supervised Neural Protolanguage Reconstruction” (joint work with Peirong Xie and David Mortensen). </td> </tr> <tr> <th scope="row" style="width: 20%">Aug 07, 2024</th> <td> <img class="emoji" title=":sparkles:" alt=":sparkles:" src="https://github.githubassets.com/images/icons/emoji/unicode/2728.png" height="20" width="20"> <strong>ChangeLing Lab is officially born!</strong> <img class="emoji" title=":sparkles:" alt=":sparkles:" src="https://github.githubassets.com/images/icons/emoji/unicode/2728.png" height="20" width="20"> (though it has long existed in fact). </td> </tr> </table> </div> </div> <h2> <a href="/blog/" style="color: inherit">latest posts</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%">Sep 05, 2024</th> <td> <a class="news-title" href="/blog/2024/hl_and_information/">Information and Comparative Reconstruction</a> </td> </tr> <tr> <th scope="row" style="width: 20%">Aug 15, 2024</th> <td> <a class="news-title" href="/blog/2024/best_paper/">On our ACL Best Paper Award Paper</a> </td> </tr> <tr> <th scope="row" style="width: 20%">Aug 14, 2024</th> <td> <a class="news-title" href="/blog/2024/cl_in_acl/">Is ACL an AI (or NLP or CL) Conference?</a> </td> </tr> </table> </div> </div> <h2> <a href="/publications/" style="color: inherit">selected publications</a> </h2> <div class="publications"> <ol class="bibliography"></ol> </div> <div class="social"> <div class="contact-icons"> <a href="mailto:%64%6D%6F%72%74%65%6E%73@%63%73.%63%6D%75.%65%64%75" title="email"><i class="fa-solid fa-envelope"></i></a> <a href="https://orcid.org/0000-0002-3927-6851" title="ORCID" rel="external nofollow noopener" target="_blank"><i class="ai ai-orcid"></i></a> <a href="https://scholar.google.com/citations?user=2iS5aeoAAAAJ&hl" title="Google Scholar" rel="external nofollow noopener" target="_blank"><i class="ai ai-google-scholar"></i></a> <a href="https://www.semanticscholar.org/author/3407646" title="Semantic Scholar" rel="external nofollow noopener" target="_blank"><i class="ai ai-semantic-scholar"></i></a> <a href="https://github.com/changelinglab" title="GitHub" rel="external nofollow noopener" target="_blank"><i class="fa-brands fa-github"></i></a> <a href="https://twitter.com/dmort27" title="X" rel="external nofollow noopener" target="_blank"><i class="fa-brands fa-x-twitter"></i></a> <a href="/feed.xml" title="RSS Feed"><i class="fa-solid fa-square-rss"></i></a> </div> <div class="contact-note">I'm best reached by email or, if you are in the inner circle, by Slack. </div> </div> </article> </div> </div> <footer class="fixed-bottom" role="contentinfo"> <div class="container mt-0"> © Copyright 2024 ChangeLing Lab. 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