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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <link href="https://2019.ase-conferences.org/favicon.ico?28d37e6d7e5e12d24c39bdba0f4f3cfd" rel="shortcut icon" type="image/x-icon" /> <link href="https://2019.ase-conferences.org/stylesheets/common_.css?d7bcca3579a066193caf560ede9d6399" rel="stylesheet" type="text/css" /> <title>Chang Xu - ASE 2019</title> <script type="text/javascript">var show_webdsl_debug=false;</script> <script type="text/javascript">var contextpath="https://2019.ase-conferences.org";</script> <link rel="stylesheet" href="https://2019.ase-conferences.org/stylesheets/bootstrap/css/bootstrap.min.css?7f89537eaf606bff49f5cc1a7c24dbca" type="text/css" /><link rel="stylesheet" href="https://2019.ase-conferences.org/stylesheets/conf.css?e0c92ee5f52769e04d268b7588469bfe" type="text/css" /><link rel="stylesheet" href="https://2019.ase-conferences.org/stylesheets/logobar.css?d68c282160782c2b5f5bfb8ceb47a30e" type="text/css" /><link rel="stylesheet" href="https://2019.ase-conferences.org/stylesheets/theme.bootstrap_3.min.css?6867e70881e6ed2c03b6c9cf9c3152e0" type="text/css" /><script type="text/javascript" src="//code.jquery.com/jquery-3.5.1.min.js"></script> <script type="text/javascript" src="https://2019.ase-conferences.org/javascript/jquery.tablesorter.combined.min.js?285b21976326641f8f1b910492e6d5d0"></script> <script type="text/javascript" src="https://2019.ase-conferences.org/javascript/jquery.tablesorter.pager.min.js?4551cdfea66f45a11ae5548f3d50a06f"></script> <script type="text/javascript" src="https://2019.ase-conferences.org/javascript/tablesorter-init.js?ee6babedf1a6be960e4543a1bb57b421"></script> <script type="text/javascript" src="https://2019.ase-conferences.org/javascript/bootstrap/js/bootstrap.min.js?2f34b630ffe30ba2ff2b91e3f3c322a1"></script> <script type="text/javascript" src="https://2019.ase-conferences.org/javascript/notify.min.js?e86d399917a84b69a4683f504c7a7813"></script> <script type="text/javascript" src="https://2019.ase-conferences.org/javascript/ajax.js?2dbd1cc4f8f2d52ae9c879d7346f4f8a"></script> <script type="text/javascript">$(document).ready( function(){ $('#program-menu a[data-fltr-type]').on('click', function(event){ event.preventDefault(); window.location = $(this).attr('href') + "?" + encodeURIComponent( $(this).data('fltr-type') ) + '=' + encodeURIComponent( $(this).data('fltr-val') ); }) }) </script> <script type="text/javascript">(function($){ $(document).ready(function(){ $('ul.dropdown-menu [data-toggle=dropdown]').on('click', function(event) { event.preventDefault(); event.stopPropagation(); $(this).parent().siblings().removeClass('open'); $(this).parent().toggleClass('open'); }); }); })(jQuery); </script> <script async src="https://www.googletagmanager.com/gtag/js?id=G-4G0QWEKVQS"></script> <script>window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments);}gtag('js', new Date());gtag('config', 'G-4G0QWEKVQS', {'cookie_domain': 'auto', 'anonymizeIp': true });gtag('config', 'UA-9607501-2', {'cookie_domain': 'auto', 'anonymizeIp': true });</script> <meta prefix='og: http://ogp.me/ns#' property='og:title' content='Chang Xu - ASE 2019'> <meta name='description' content='Welcome to the website of the ASE 2019 conference! The 34th IEEE/ACM International Conference on Automated Software Engineering (ASE 2019) will be held in San Diego from November 11 to 15, 2019. The conference is the premier research forum for automated software engineering. Each year, it brings together researchers and practitioners from academia and industry to discuss foundations, techniques, and tools for automating the analysis, design, implementation, testing, and maintenance of large software systems. We have an exciting program for you. For the accepted papers, please visit the f ...'> <meta prefix='og: http://ogp.me/ns#' property='og:image' content='https://2019.ase-conferences.org/getImage/carousel/Pacific_Beach_Sunset_jdb.JPG?1535033371000'> <meta prefix='og: http://ogp.me/ns#' property='og:description' content='Welcome to the website of the ASE 2019 conference! The 34th IEEE/ACM International Conference on Automated Software Engineering (ASE 2019) will be held in San Diego from November 11 to 15, 2019. The conference is the premier research forum for automated software engineering. Each year, it brings together researchers and practitioners from academia and industry to discuss foundations, techniques, and tools for automating the analysis, design, implementation, testing, and maintenance of large software systems. We have an exciting program for you. 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data-toggle="collapse" data-target="#navigationbar" class="navbar-toggle"><span class="sr-only">Toggle navigation</span><span class="icon-bar"></span><span class="icon-bar"></span><span class="icon-bar"></span></button></div><div id="navigationbar" class="navigationbar collapse navbar-collapse"><ul class="block nav navbar-nav"><li class="dropdown"><a href="#" data-toggle="dropdown" class="dropdown-toggle">Attending <span class="caret"></span></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/venue/ase-2019-venue" class="navigate">Venue: Hilton San Diego Mission Valley</a></li><li><a href="https://2019.ase-conferences.org/attending/attendee-information" class="navigate">Attendee Information</a></li><li><a href="https://2019.ase-conferences.org/attending/presenter-information" class="navigate">Presenter Information</a></li><li><a href="https://2019.ase-conferences.org/attending/poster-information" class="navigate">Poster Information</a></li><li><a href="https://2019.ase-conferences.org/attending/registration" class="navigate">Registration</a></li><li><a href="https://2019.ase-conferences.org/attending/accommodation" class="navigate">Accommodation</a></li><li><a href="https://2019.ase-conferences.org/attending/room-sharing" class="navigate">Room Sharing</a></li><li><a href="https://2019.ase-conferences.org/attending/travel-support" class="navigate">Travel Support</a></li><li><a href="https://2019.ase-conferences.org/attending/author-information" class="navigate">Author Information</a></li><li><a href="https://2019.ase-conferences.org/attending/author-information-workshops" class="navigate">Author Information (Workshops)</a></li><li><a href="https://2019.ase-conferences.org/attending/visa-letters" class="navigate">Visa Letters</a></li><li><a href="https://2019.ase-conferences.org/attending/sponsorship-opportunities" class="navigate">Sponsorship Opportunities</a></li><li><a href="https://2019.ase-conferences.org/attending/code-of-conduct" class="navigate">Code of Conduct</a></li><li><a href="https://2019.ase-conferences.org/attending/diversity-and-inclusion" class="navigate">Diversity and Inclusion</a></li><li><a href="https://2019.ase-conferences.org/attending/diversity-and-inclusion-activities" class="navigate">Diversity and Inclusion Activities</a></li></ul></li><li class="dropdown"><a href="#" data-toggle="dropdown" class="dropdown-toggle">Program <span class="caret"></span></a><ul id="program-menu" class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" class="navigate">ASE Program</a></li><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" data-fltr-type="prog" data-fltr-val="Your Program" class="navigate"><span class="glyphicon glyphicon-star"></span> Your Program</a></li><li><a href="https://2019.ase-conferences.org/info/week-overview" class="navigate">Week Overview</a></li><li><a href="https://2019.ase-conferences.org/info/keynotes" class="navigate">Keynotes</a></li><li><a href="https://2019.ase-conferences.org/info/social-events" class="navigate">Social Events</a></li><li><a href="https://2019.ase-conferences.org/info/community-meetings" class="navigate">Community Meetings</a></li><li><a href="https://2019.ase-conferences.org/info/accepted-papers" class="navigate">Accepted Papers</a></li><li><a href="https://2019.ase-conferences.org/info/awards" class="navigate">Awards</a></li><li><a href="https://2019.ase-conferences.org/info/photos" class="navigate">Photos</a></li><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" data-fltr-type="date" data-fltr-val="Sun 10 Nov 2019" class="navigate">Sun 10 Nov</a></li><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" data-fltr-type="date" data-fltr-val="Mon 11 Nov 2019" class="navigate">Mon 11 Nov</a></li><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" data-fltr-type="date" data-fltr-val="Tue 12 Nov 2019" class="navigate">Tue 12 Nov</a></li><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" data-fltr-type="date" data-fltr-val="Wed 13 Nov 2019" class="navigate">Wed 13 Nov</a></li><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" data-fltr-type="date" data-fltr-val="Thu 14 Nov 2019" class="navigate">Thu 14 Nov</a></li><li><a href="https://2019.ase-conferences.org/program/program-ase-2019/" data-fltr-type="date" data-fltr-val="Fri 15 Nov 2019" class="navigate">Fri 15 Nov</a></li></ul></li><li id="tracks-in-navbar" class="dropdown"><a href="#" data-toggle="dropdown" class="dropdown-toggle">Tracks <span class="caret"></span></a><ul class="block dropdown-menu multi-column columns-3"><div class="row"><div class="col-sm-5"><ul class="block multi-column-dropdown"><li class="dropdown-header">ASE 2019</li><li><a href="https://2019.ase-conferences.org/track/ase-2019-How-to-Submit" class="navigate">How to Submit</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-travel-support" class="navigate">Travel Support</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-papers" class="navigate">Research Papers</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Journal-First-Presentations" class="navigate">Journal First Presentations</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Demonstrations" class="navigate">Demonstrations</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Industry-Showcase" class="navigate">Industry Showcase</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Doctoral-Symposium" class="navigate">Doctoral Symposium</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Student-Research-Competition" class="navigate">Student Research Competition</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Student-Volunteers" class="navigate">Student Volunteers</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Late-Breaking-Results" class="navigate">Late Breaking Results</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-Workshops" class="navigate">Workshops</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-faculty-mentorship-lunch" class="navigate">Faculty Mentorship Lunch</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-paper-presentations" class="navigate">Papers</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-registration" class="navigate">Registration</a></li><li><a href="https://2019.ase-conferences.org/track/ase-2019-meetings" class="navigate">Meetings</a></li></ul></div><div class="col-sm-7"><ul class="block multi-column-dropdown"><li class="dropdown-header">Co-hosted Events</li><li><a href="https://2019.ase-conferences.org/home/ase-celeb-2019" class="navigate"><strong>Celebration of ASE</strong> </a></li><li><a href="https://2019.ase-conferences.org/home/nsf-dl-se-2019" class="navigate"><strong>NSF Workshop: DL + SE</strong> </a></li><li class="dropdown-header">Workshops</li><li><a href="https://2019.ase-conferences.org/home/a-mobile-2019" class="navigate"><strong>A-Mobile</strong> </a></li><li><a href="https://2019.ase-conferences.org/home/explain-2019" class="navigate"><strong>EXPLAIN</strong> </a></li><li><a href="https://2019.ase-conferences.org/home/jpf-2019" class="navigate"><strong>JPF</strong> </a></li><li><a href="https://2019.ase-conferences.org/home/njr-ase-2019" class="navigate"><strong>NJR</strong> </a></li><li><a href="https://2019.ase-conferences.org/home/sead-2019" class="navigate"><strong>SEAD</strong> </a></li><li><a href="https://2019.ase-conferences.org/home/seconfig-2019" class="navigate"><strong>SEConfig</strong> </a></li><li><a href="https://2019.ase-conferences.org/home/SEI-2019" class="navigate"><strong>SEI</strong> </a></li></ul></div></div></ul></li><li class="dropdown"><a href="#" data-toggle="dropdown" class="dropdown-toggle">Organization <span class="caret"></span></a><ul class="block dropdown-menu multi-column columns-2"><div class="row"><div class="col-sm-6"><ul class="block multi-column-dropdown"><li class="dropdown-header">ASE 2019 Committees</li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-organizing-committee" class="navigate">Organizing Committee</a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-steering-committee" class="navigate">Steering Committee</a></li><li class="dropdown-header">Track Committees </li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-papers-program-committee" class="navigate"><strong>Research Papers</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-journal-first-presentations-program-committee" class="navigate"><strong>Journal First Presentations</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-demonstrations-program-committee" class="navigate"><strong>Demonstrations</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-industry-showcase-program-committee" class="navigate"><strong>Industry Showcase</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-doctoral-symposium-program-committee" class="navigate"><strong>Doctoral Symposium</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-student-research-competition-program-committee" class="navigate"><strong>Student Research Competition</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-student-volunteers-chairs" class="navigate"><strong>Student Volunteers</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-late-breaking-results-program-committee" class="navigate"><strong>Late Breaking Results</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-workshop-proposals-program-committee" class="navigate"><strong>Workshops</strong></a></li><li><a href="https://2019.ase-conferences.org/committee/ase-2019-faculty-mentorship-lunch-organizing-committee-and-mentors" class="navigate"><strong>Faculty Mentorship Lunch</strong></a></li><li class="dropdown-header">Contributors</li><li><a href="https://2019.ase-conferences.org/people-index" class="navigate"><span class="glyphicon glyphicon-search"></span><sup><span class="glyphicon glyphicon-user"></span></sup> People Index</a></li></ul></div><div class="col-sm-6"><ul class="block multi-column-dropdown"><li class="dropdown-header">Co-hosted Events</li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>Celebration of ASE</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/ase-celeb-2019-organizing-committee" class="navigate">Organizing Committee</a></li></ul></li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>NSF Workshop: DL + SE</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/nsf-dl-se-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li></ul></li><li class="dropdown-header">Workshops</li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>A-Mobile</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/a-mobile-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li><li><a href="https://2019.ase-conferences.org/committee/a-mobile-2019-papers-program-committee" class="navigate">Program Committee</a></li></ul></li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>EXPLAIN</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/explain-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li><li><a href="https://2019.ase-conferences.org/committee/explain-2019-papers-program-committee" class="navigate">Program Committee</a></li></ul></li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>JPF</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/jpf-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li><li><a href="https://2019.ase-conferences.org/committee/jpf-2019-papers-program-committee" class="navigate">Program Committee</a></li></ul></li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>NJR</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/njr-ase-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li><li><a href="https://2019.ase-conferences.org/committee/njr-ase-2019-papers-program-committee" class="navigate">Program Committee</a></li></ul></li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>SEAD</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/sead-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li><li><a href="https://2019.ase-conferences.org/committee/sead-2019-papers-program-committee" class="navigate">Program Committee</a></li></ul></li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>SEConfig</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/seinfraconfig-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li><li><a href="https://2019.ase-conferences.org/committee/seconfig-2019-papers-program-committee" class="navigate">Program Committee</a></li></ul></li><li class="dropdown dropdown-submenu "><a href="#" data-toggle="dropdown" class="dropdown-toggle"><strong>SEI</strong></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/committee/sei-2019-papers-organizing-committee" class="navigate">Organizing Committee</a></li></ul></li></ul></div></div></ul></li><li><a href="https://2019.ase-conferences.org/search//all" class="navigate"><span class="glyphicon glyphicon-search"></span><span class="hidden-sm"> Search</span></a></li><li class="dropdown"><a href="#" data-toggle="dropdown" class="dropdown-toggle"><span class="hidden-sm">Series <span class="caret"></span></span><span title="Series" class="visible-sm"><span class="glyphicon glyphicon-repeat"></span> <span class="caret"></span></span></a><ul class="block dropdown-menu"><li><a href="https://2019.ase-conferences.org/series/ase" class="navigate"><span class="glyphicon glyphicon-home"></span> Series</a></li><li><a href="https://conf.researchr.org/home/ase-2025" class="navigate">ASE 2025</a></li><li><a href="https://conf.researchr.org/home/ase-2024" class="navigate">ASE 2024</a></li><li><a href="https://conf.researchr.org/home/ase-2023" class="navigate">ASE 2023</a></li><li><a href="https://conf.researchr.org/home/ase-2022" class="navigate">ASE 2022</a></li><li><a href="https://conf.researchr.org/home/ase-2021" class="navigate">ASE 2021</a></li><li><a href="https://conf.researchr.org/home/ase-2020" class="navigate">ASE 2020</a></li><li><span class="text-muted" style="margin-left: 2px;"><span class="glyphicon glyphicon-hand-right"></span> ASE 2019</span></li><li><a href="http://ase-conferences.org/ase/past/index.html" target="_blank" class="navigate">Past Editions <span class="pull-right"><span class="glyphicon glyphicon-new-window"></span></span></a></li></ul></li></ul><div class="navbar-right"><ul class="block nav navbar-nav"><li><a href="https://conf.researchr.org/signin/ase-2019/https%3A%5Es%5Es2019.ase-conferences.org%5Esprofile%5Eschangxu" rel="nofollow" class="navigate">Sign in</a></li><li><a href="https://2019.ase-conferences.org/signup" class="navigate">Sign up</a></li></ul></div></div></div></div><div id="content" class="container"><div class="page-header"><span class="text-muted small"><span class="glyphicon glyphicon-home"></span> <a href="https://2019.ase-conferences.org" class="navigate">ASE 2019</a> (<a href="https://2019.ase-conferences.org/series/ase" class="navigate">series</a>) / </span>Chang Xu<span class="pull-right"><small><div class="btn-group"><button type="button" data-toggle="dropdown" class="btn btn-primary dropdown-toggle">ASE 2019 profile <span class="caret"></span></button><ul class="block dropdown-menu"><li><a href="https://conf.researchr.org/profile/conf/changxu" class="navigate">conf.research.org general profile</a></li><li><a href="https://conf.researchr.org/profile/icse-2018/changxu" class="navigate">* ICSE 2018 * profile</a></li><li><a href="https://conf.researchr.org/profile/ase-2022/changxu" class="navigate">ASE 2022 profile</a></li><li><a href="https://conf.researchr.org/profile/ase-2023/changxu" class="navigate">ASE 2023 profile</a></li><li><a href="https://conf.researchr.org/profile/ase-2024/changxu" class="navigate">ASE 2024 profile</a></li><li><a href="https://conf.researchr.org/profile/ecoop-issta-2018/changxu" class="navigate">ECOOP and ISSTA 2018 profile</a></li><li><a href="https://2018.fseconference.org/profile/changxu" class="navigate">ESEC/FSE 2018 profile</a></li><li><a href="https://2020.esec-fse.org/profile/changxu" class="navigate">ESEC/FSE 2020 profile</a></li><li><a href="https://2021.esec-fse.org/profile/changxu" class="navigate">ESEC/FSE 2021 profile</a></li><li><a href="https://2022.esec-fse.org/profile/changxu" class="navigate">ESEC/FSE 2022 profile</a></li><li><a href="https://2023.esec-fse.org/profile/changxu" class="navigate">ESEC/FSE 2023 profile</a></li><li><a href="https://conf.researchr.org/profile/fse-2025/changxu" class="navigate">FSE 2025 profile</a></li><li><a href="https://2019.icse-conferences.org/profile/changxu" class="navigate">ICSE 2019 profile</a></li><li><a href="https://2020.icse-conferences.org/profile/changxu" class="navigate">ICSE 2020 profile</a></li><li><a href="https://2021.icse-conferences.org/profile/changxu" class="navigate">ICSE 2021 profile</a></li><li><a href="https://conf.researchr.org/profile/icse-2022/changxu" class="navigate">ICSE 2022 profile</a></li><li><a href="https://conf.researchr.org/profile/icse-2024/changxu" class="navigate">ICSE 2024 profile</a></li><li><a href="https://conf.researchr.org/profile/icse-2025/changxu" class="navigate">ICSE 2025 profile</a></li><li><a href="https://conf.researchr.org/profile/internetware-2024/changxu" class="navigate">Internetware 2024 profile</a></li><li><a href="https://pldi23.sigplan.org/profile/changxu" class="navigate">PLDI 2023 profile</a></li><li><a href="https://conf.researchr.org/profile/saner-2024/changxu" class="navigate">SANER 2024 profile</a></li><li><a href="https://2021.splashcon.org/profile/changxu" class="navigate">SPLASH 2021 profile</a></li><li><a href="https://2023.splashcon.org/profile/changxu" class="navigate">SPLASH 2023 profile</a></li></ul></div></small></span></div><div class="row"><div class="col-sm-4 col-lg-3"><img alt="Chang Xu" src="https://2019.ase-conferences.org/getProfileImage/changxu/19c2a2e1-cc95-4b04-968d-71e97c5ee988/small.jpg?1716905599000" class="outputimage thumbnail"/><p><small>Registered user since Sat 16 Mar 2019</small></p></div><div class="col-sm-8 col-lg-9"><div><div class="profile-item"><span class="profile-item-heading">Name:</span>Chang Xu</div><div class="profile-item"><span class="profile-item-heading">Country:</span>China</div><div class="profile-item"><span class="profile-item-heading">Affiliation:</span>Nanjing University</div><div class="profile-item"><span class="profile-item-heading">Personal website:</span><a href="https://cs.nju.edu.cn/changxu/" target="_blank" class="navigate"><span class="glyphicon glyphicon-new-window"></span> https://cs.nju.edu.cn/changxu/</a></div><div class="profile-item"><span class="profile-item-heading">Research interests:</span>Big data software engineering, intelligent software testing and analysis, and adaptive and autonomous software systems</div></div><p><strong>Contributions</strong></p><div id="contributions-timeline"><div><div class="contribution-year"><h3>2019</h3><div><h4>ASE</h4><ul class="block"><li><small title="Contributed Item" class="text-muted"><span class="label-default label"><span class="glyphicon glyphicon-file"></span></span></small> <a href="#" data-event-modal="9f4bf596-6b38-464e-8069-c8672375c68b">SGUARD: A Feature-based Clustering Tool for Effective Spreadsheet Defect Detection</a></li></ul></div></div></div></div><p><span class="glyphicon glyphicon-new-window"></span> <a href="https://conf.researchr.org/profile/conf/changxu" target="_blank" class="navigate">Show activities from other conferences</a></p><div id="embedWidget" class="webdsl-placeholder"><div class="panel-group"><div class="panel"><div class="panel-heading clearfix"><span class="panel-title"><button style="position: absolute; left: -9999px; width: 1px; height: 1px;" onclick='javascript:serverInvoke("https://2019.ase-conferences.org/profile","embedProfileWidgetProfile_loadWidget1d78b0351177db9cad4bb6f06b7a0b837", [{"name":"context", "value":"ase-2019"},{"name":"pers", "value":"changxu"},],"", this.nextSibling, true,"1"); return false;'></button><a submitid="embedProfileWidgetProfile_loadWidget1d78b0351177db9cad4bb6f06b7a0b837" href="javascript:void(0)" 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