{"id":9,"date":"2017-11-14T16:23:22","date_gmt":"2017-11-14T23:23:22","guid":{"rendered":"https:\/\/blogs.ubc.ca\/ycding\/?page_id=9"},"modified":"2025-06-05T06:35:57","modified_gmt":"2025-06-05T13:35:57","slug":"research","status":"publish","type":"page","link":"https:\/\/blogs.ubc.ca\/ycding\/research\/","title":{"rendered":"Research"},"content":{"rendered":"<h3 style=\"text-align: center;\">Research Interests<\/h3>\n<ul>\n<li>Methodology: Optimization, Queueing, Empirical<\/li>\n<li>Applications: Health care and other public sectors, including allocation and matching of scarce resources (organs, public housing units),\u00a0 emergency room, border-crossing, appointment scheduling, and surgeries, post COVID operations<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\">Research Papers:<\/h3>\n<p>(Authors indicated with * are students that I supervised, those with ^ are clinical collaborators.)<\/p>\n<h4><strong>Working Papers<\/strong><\/h4>\n<p>\u201cComparison of Data Mining Algorithms for Emergency Room Wait Time Predictions\u201d, with\u00a0Jie Wang*, Mahesh Nagarajan, Leung Arnold^, Garth Hunte^, Wiston MacKenzie^, Julian Marsden^.<\/p>\n<p>\u201cPortability Maximization for Public Housing: A Centralized Approach\u201d, with Daniel Granot,\u00a0Weihua Zhang*.<\/p>\n<p>&#8220;A Combined Use of &#8230;&#8221;, Yichuan Ding, Preveena Dharmaraj^, Sean Hardy^, Sarah McAnally^, Zhen Liu*, Garth Hunte^, <em>Canadian Journal of Emergency Medicine, <\/em>revision for re-submission.<\/p>\n<h4>Journal Articles (referred or submitted)<\/h4>\n<p>(For papers under review of medical journals, titles are hided.)<\/p>\n<p>\u201c<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2024\/02\/SSRN-id4728702.pdf\">Early Reservation for Follow-up Appointments: Enhancing Patient Care Continuity<\/a>\u201d, Yichuan Ding, Diwakar Gupta, and Shenghai Zhou (2023), major revision, MSOM.<\/p>\n<p>\u201c<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2025\/06\/Tight_bounds_for_the_price_of_fairness_submission.pdf\">Tight Bounds for The Price of Fairness<\/a>\u201d, Yifeng Cao*, Yichuan Ding, Daniel Granot (2024), minor revision, Operations Research.<\/p>\n<p>&#8220;<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2023\/04\/OR_adaptive_ssrn.pdf\">Adaptive Server Behavior to Deviations in Schedules and Consequences: Evidence from Operating Rooms<\/a>&#8220;, Yiwen Jin*, Yichuan Ding, Steven Shechter, Juapal Arneja^, minor revision, MSOM.<\/p>\n<p>&#8220;<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2024\/02\/TaskSwitchingICSSSM2023.pdf\">The Cost of Task Switching: Evidence from the Emergency Department<\/a>&#8220;, Yiwen Jin*, Yige Duan*, Yichuan Ding, Mahesh Nagarajan, Garth Hunte^, rejected and resubmitted, MSOM.<\/p>\n<p>\u201c<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2024\/02\/37128228_File000000_1057112341.pdf\">Parallel Queues with Choice-Driven Arrivals: Asymptotic Analysis and Optimal Staffing<\/a>\u201d, Yichuan Ding, Mahesh Nagarajan, George Zhang (2019), <em>Operations Research, <\/em>major revision.<\/p>\n<p>\u201c<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2022\/06\/SDFUsecondRRfinal.pdf\">Early Reservation for Follow-up Appointments in a Slotted-Service Queue<\/a>\u201d, Yichuan Ding, Diwakar Gupta, Xiaoxu Tang, <em>Operations Research, accepted<\/em><em>.<\/em><\/p>\n<ul>\n<li>a preliminary version presented at the 2015 MSOM Healthcare SIG Conference.<\/li>\n<\/ul>\n<p>\u201cDo Microsurgical Outcomes Differ Based on Which Specialty Does the Operation? An Analysis of 6,617 Cases from the National Surgical Quality Improvement Program\u201d, Jacques X. Zhang^, Melissa Wan^, Yichuan Ding, Yiwen Jin*, Mahesh Nagarajan, Marija Bucevska^, Douglas Courtemanche^, Julie Bedford^, Jugpal S. Arneja^ (2019), <em>Plastic and Reconstructive Surgery Global Open, accepted.<\/em><\/p>\n<p>&#8220;Association of Intensive Care Unit Occupancy During Admission and Inpatient Mortality: An Historical Cohort Study&#8221;, Nicholas Fergusson^, Steve Ahkioon^, Mahesh Nagarajan, Eric Park, Yichuan Ding, Najib Ayas^, Vinay Dhingra^, Dean Chittock^<em>, Donald Griesdale^ <\/em><em>(2019)<\/em><em>, <\/em><em>Canadian Journal of Anesthesia, <\/em>accepted.<\/p>\n<p>\u201c<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2019\/10\/ConstantAppointmentScheduling2019Aug13Final.pdf\">Constant Job-Allowance Policies for Appointment Scheduling: Performance Bounds and Numerical Analysis<\/a>\u201d, Shenghai Zhou*, Yichuan Ding, Tim Huh, Guohua Wan (2018), <em>Production and Operations Management<\/em>, accepted. <a href=\"https:\/\/papers.ssrn.com\/sol3\/papers.cfm?abstract_id=3133508\">SSRN link<\/a><\/p>\n<ul>\n<li>Finalist, best student paper prize, 2019 POMS International Conference, Tianjin, China.<\/li>\n<\/ul>\n<p>&#8220;High Risk Plastic Surgery: An Analysis of 108,303 Cases from the American College of Surgeons National Surgical Quality Improvement Program&#8221;, Melissa Wan*, Jacques X. Zhang^, Yichuan Ding, Yiwen Jin*, Julie Bedford^, Mahesh Nagarajan, Marija Bucevska^, Douglas Courtemanche^, Jugpal S. Arneja^, <em>Canadian Plastic Surgery Journal,<\/em> accepted<em>.<\/em><\/p>\n<p>\u201c<a style=\"color: #ea9629; text-decoration-line: underline; outline: 0px;\" href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2018\/08\/PDF25891600-585444938.pdf\">A Fluid Model for an Overloaded Bipartite Queueing System with Scoring-Based Priority Rules<\/a>\u201d, Yichuan Ding, Thomas McCormick, Mahesh Nagarajan (2018), <em>Operations Research,\u00a0<\/em>accepted.<\/p>\n<ul>\n<li>The method of this paper has been used in:\u00a0<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2018\/08\/housingcase.pdf\">Public Housing Case<\/a>.<\/li>\n<\/ul>\n<p>\u201c<a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1111\/acem.13635\">Do financial incentives change length-of-stay performance in emergency departments? A retrospective study of the Pay-for-Performance program in Metro Vancouver<\/a>\u201d, Yuren Wang*, Yichuan Ding, Eric Park*, Garth Hunte^, <em>Academic Emergency Medicine, <\/em>accepted.<\/p>\n<p>\u201c<a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2018\/08\/ddssJuly16_revision.pdf\">An Achievable-Region-Based Approach for Kidney Allocation Policy Design with Endogenous Patient Choice<\/a>\u201d, Baris Ata, Yichuan Ding, Stefanos Zenios (2018),\u00a0<em>Manufacturing and Service Operations Management, <\/em>accepted. Link to the <a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2019\/04\/ddssappendices.pdf\">Full Appendices<\/a><\/p>\n<ul>\n<li>Finalist, 2019 Pierskalla Best Paper Competition<\/li>\n<li><span style=\"font-family: arial, sans-serif; font-size: medium;\">Presented at the 2019 MSOM Healthcare SIG Conference<\/span><\/li>\n<\/ul>\n<p>\u201c<a href=\"https:\/\/pubsonline.informs.org\/doi\/10.1287\/opre.2017.1717\">A Non-Asymptotic Approach to Analyzing Kidney Exchange Graphs<\/a>\u201d, Yichuan Ding, Dongdong Ge, Simai He, Chris Ryan (2018).\u00a0<em>Operations Research<\/em>, <span class=\"volume\">66<\/span>:<span class=\"issue\">4<\/span>,\u00a0<span class=\"page\">918-935<\/span>.<\/p>\n<p>\u201c<a href=\"https:\/\/doi.org\/10.1287\/msom.2018.0719\">Patient Prioritization in Emergency Department Triage Systems: An Empirical Study of Canadian Triage and Acuity Scale (CTAS)<\/a>\u201d (Link to the <a href=\"https:\/\/blogs.ubc.ca\/ycding\/files\/2018\/03\/PatientChoice-Final-supplementary.pdf\">Full Appendices<\/a>) , Yichuan Ding, Eric Park*, Mahesh Nagarajan, Eric Grafstein^ (2019). <em>Manufacturing and Service Operations Management,\u00a0 <\/em>accepted.<\/p>\n<ul>\n<li>3rd Place, INFORMS Behavioral Operations Best Working Paper Award, 2017<\/li>\n<li><span style=\"font-family: arial, sans-serif; font-size: medium;\">Presented at the 2015 MSOM Healthcare SIG Conference<\/span><\/li>\n<\/ul>\n<p>&#8220;<a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0965856416305080\">A Data-Driven Approach to Manpower Planning at US\u2013Canada Border Crossings.<\/a>&#8221;\u00a0 Yu Mengqiao*, Yichuan Ding, Robin Lindsey, Cong Shi (2016).\u00a0<em>Transportation Research Part A: Policy and Practice<\/em>,\u00a0<em>91<\/em>, 34-47.<\/p>\n<p>&#8220;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23653217\">A K\u2010Nearest-Neighbors Survival Probability Prediction Method.<\/a>&#8221;\u00a0 David Lowsky, Yichuan Ding,\u00a0 Donald Lee, Charles McCulloch^, Lainie Ross^, Richard Thistlethwaite^, Stefanos Zenios (2013).\u00a0<em>Statistics in Medicine<\/em>,\u00a0<em>32<\/em>(12), 2062-2069.<\/p>\n<p>&#8220;<a href=\"https:\/\/pubsonline.informs.org\/doi\/pdf\/10.1287\/opre.1110.1011\">Price of correlations in Stochastic Optimization.<\/a>&#8221; Shipra Agrawal, Yichuan Ding, Amin Saberi, Yinyu Ye (2012).\u00a0<em>Operations Research<\/em>, 60(1), 150-162.<\/p>\n<ul>\n<li>Honorable Mention, the First Student Paper Competition, Committee on Stochastic Programming (COSP).<\/li>\n<li>A preliminary version\u00a0&#8220;<a href=\"https:\/\/arxiv.org\/abs\/0902.1792\">Correlation Robust Stochastic Optimization<\/a>&#8221; has appeared in Proceedings of the Twenty-First Annual ACM-SIAM Symposium on Discrete Algorithms (SODA)<\/li>\n<\/ul>\n<p>&#8220;<a href=\"https:\/\/pubsonline.informs.org\/doi\/pdf\/10.1287\/moor.1100.0473\">On equivalence of semidefinite relaxations for quadratic matrix programming.<\/a>&#8221; Yichuan Ding, Dongdong Ge, Henry Wolkowicz (2011).\u00a0\u00a0<em>Mathematics of Operations Research<\/em>, 36(1), 88-104.<\/p>\n<p>\u201c<a href=\"http:\/\/www.optimization-online.org\/DB_FILE\/2006\/12\/1545.pdf\">Sensor network localization, Euclidean distance matrix completions, and graph realization.<\/a>\u201d Yichuan Ding, Nathan Krislock, Jiawang Qian, Henry Wolkowicz (2010).\u00a0<em>Optimization and Engineering<\/em>, 11(1), 45-66.<\/p>\n<p>\u201c<a href=\"https:\/\/pubsonline.informs.org\/doi\/pdf\/10.1287\/moor.1090.0419\">A Low-Dimensional Semidefinite Relaxation for the Quadratic Assignment Problem.<\/a>\u201d Yichuan Ding, Henry Wolkowicz (2009).\u00a0<em>Mathematics of Operations Research<\/em>, 34(4), 1008-1022.<\/p>\n<h4>Conference Proceedings<\/h4>\n<p>\u201cA non-asymptotic approach to analyzing kidney exchange graphs.&#8221; Yichuan Ding, Dongdong Ge, Simai He, Chris Ryan. In Proceedings of EC\u201915 (The 16<sup>th<\/sup> ACM conference on Economics and Computation).<\/p>\n<p>&#8220;Correlation robust stochastic optimization.&#8221; Shipra Agrawal, Yichuan Ding, Amin Saberi, Yinyu Ye.\u00a0 In Proceedings of the Twenty-First Annual ACM-SIAM Symposium on Discrete Algorithms (SODA) (pp. 1087-1096).<\/p>\n<p>&#8220;Real-time tracking for sensor networks via SDP and gradient method.&#8221; Zizhuo Wang and Yichuan Ding.\u00a0 In Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments (pp. 109-112). ACM.<\/p>\n<p>&#8220;A note on the trackability of dynamic sensor networks.&#8221; Yichuan Ding. In\u00a0<em>Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments<\/em>\u00a0(pp. 113-116). ACM.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Research Interests Methodology: Optimization, Queueing, Empirical Applications: Health care and other public sectors, including allocation and matching of scarce resources (organs, public housing units),\u00a0 emergency room, border-crossing, appointment scheduling, and surgeries, post COVID operations &nbsp; Research Papers: (Authors indicated with * are students that I supervised, those with ^ are clinical collaborators.) Working Papers \u201cComparison [&hellip;]<\/p>\n","protected":false},"author":46117,"featured_media":0,"parent":0,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/pages\/9","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/users\/46117"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/comments?post=9"}],"version-history":[{"count":167,"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/pages\/9\/revisions"}],"predecessor-version":[{"id":353,"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/pages\/9\/revisions\/353"}],"wp:attachment":[{"href":"https:\/\/blogs.ubc.ca\/ycding\/wp-json\/wp\/v2\/media?parent=9"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}