{"614401":{"#nid":"614401","#data":{"type":"news","title":"ISyE Faculty and Students Receive Awards at 2018 INFORMS Conference","body":[{"value":"\u003Cp\u003EAt the annual Institute for Operations Research and the Management Sciences (INFORMS) conference, a number of faculty members and students from Georgia Tech\u0026rsquo;s H. Milton Stewart School of Industrial and Systems Engineering (ISyE) received awards for their research. The conference was held from November 4-7 in Phoenix.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003EWinners \u003C\/strong\u003E\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EAnderson-Interface Chair and Professor \u003Cstrong\u003EShabbir Ahmed\u003C\/strong\u003E received the 2018 Farkas Prize from the INFORMS Optimization Society. The society cited Ahmed\u0026rsquo;s \u0026ldquo;fundamental contributions to the theory and practice of stochastic discrete optimization.\u0026rdquo; The Farkas Prize was established in 2006 and is awarded at the INFORMS annual meeting to a mid-career researcher for outstanding contributions to the field of optimization over the course of their career.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EGeorge Family Foundation Early Career Professor and Associate Professor \u003Cstrong\u003ETurgay Ayer\u003C\/strong\u003E, in joint work with researchers from University of Texas at Dallas, won the eBusiness Section Best Paper Award for \u0026ldquo;When IT Creates Legal Vulnerability: Not Just Overutilization but Underprovisioning of Health Care\u0026nbsp; Could Be a Consequence.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe paper deals with the increased litigation risk that may be associated with defensive medicine, a physician behavior characterized by providing more care than necessary due to fear of litigation. In a medical litigation case, clinical practice guidelines (CPGs) are considered as inculpatory or exculpatory evidence, but the formulation of CPGs with respect to precision of CPGs is still in question. In this paper, the authors examine the effects of defensive medicine on care delivery under expanded information sharing, and identify screening guidelines that maximize the social welfare.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPh.D. student \u003Cstrong\u003EBeste Basciftci\u003C\/strong\u003E received the INFORMS ENRE Best Student Paper Award for \u0026ldquo;Stochastic Optimization of Maintenance and Operations Schedules under Unexpected Failures,\u0026rdquo; co-authored with Anderson-Interface Chair and Professor \u003Cstrong\u003EShabbir Ahmed\u003C\/strong\u003E, Georgia Power Early Career Professor and Professor \u003Cstrong\u003ENagi Gebraeel\u003C\/strong\u003E, and \u003Cstrong\u003EMurat Yildirim\u003C\/strong\u003E (Ph.D. 16).\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe paper develops a novel stochastic optimization framework for jointly optimizing maintenance and operations schedules of a fleet of generators with explicit consideration of sensor-driven unexpected failure scenarios by leveraging data analytics. The authors\u0026rsquo; extensive results on illustrative instances highlight significant cost savings and reductions in generator failures compared to existing scheduling approaches, in addition to computational benefits of their solution methodology with algorithmic enhancements and parallel implementation.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFouts Family Professor\u003Cstrong\u003E Natashia Boland\u003C\/strong\u003E, \u003Cstrong\u003EMike Hewitt \u003C\/strong\u003E(Ph.D. 09), \u003Cstrong\u003ELuke Marshall\u003C\/strong\u003E (Ph.D. 17), and James C. Edenfield Chair and Professor \u003Cstrong\u003EMartin Savelsbergh\u003C\/strong\u003E received the Transportation Science and Logistics (TSL) Section Best Paper Award for \u0026ldquo;The Continuous-time Service Network Design Problem.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe paper deals with the use of time discretization in service network design models, specifically answering the question, \u0026ldquo;Is it possible to produce an optimal continuous-time solution without explicitly modeling each point in time?\u0026rdquo; The team\u0026rsquo;s work developed an iterative refinement algorithm using partially time-expanded networks that solves continuous-time service network design problems.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPh.D. student \u003Cstrong\u003EMostafa Reisi\u003C\/strong\u003E won the Data Mining Best Paper Award for \u0026ldquo;Multiple Tensor-on-Tensor Regression: An Approach for Modeling Processes with Heterogeneous Sources of Data,\u0026rdquo; co-authored with \u003Cstrong\u003EHao Yan \u003C\/strong\u003E(Ph.D. 16), Fouts Family Early Career Professor and Associate Professor \u003Cstrong\u003EKamran Paynabar\u003C\/strong\u003E, and Carolyn J. Stewart Chair and Professor \u003Cstrong\u003EJan Shi\u003C\/strong\u003E.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe authors developed a general multiple tensor-on-tensor regression framework (called MTOT) that employs tensor algebra to effectively integrate heterogeneous inputs to predict a high-dimensional output. The MTOT consolidates and generalizes the function-on-scalar, scalar-on-function, and function-on-function regression frameworks and allows for any form of structured data to be included in the modeling process. The key advantage of the MTOT is that it learns several basis matrices, in accordance to the relationship between the inputs and the output, to capture the correlation structure of the HD data and to perform dimensionality reduction.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EAssistant Professor \u003Cstrong\u003EHe Wang\u003C\/strong\u003E received first place in the Junior Faculty Interest Group (JFIG) paper competition for the work \u0026ldquo;A Re-solving Heuristic with Uniformly Bounded Loss for Network Revenue Management,\u0026rdquo; coauthored with Ph.D. student \u003Cstrong\u003EPornpawee Bumpensanti\u003C\/strong\u003E.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EWang and Bumpensanti\u0026rsquo;s paper studies how a firm can maximize its revenue given limited resources and time. This is known as the \u0026quot;network revenue management\u0026quot; problem and has a wide range of applications in the airline, hotel, and retail industries. The paper proposes a new algorithm for this problem and proves that the algorithm achieves the best possible theoretical performance (i.e., a constant loss).\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003EThird Place\u003C\/strong\u003E\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EWeijun Xie\u003C\/strong\u003E (Ph.D. 17) was awarded third place in the Junior Faculty Interest Group (JFIG) Best Paper competition for \u0026ldquo;On Distributionally Robust Chance Constrained Program with Wasserstein Distance.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003EHonorable Mention\u003C\/strong\u003E\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EAssistant Professor \u003Cstrong\u003ESwati Gupta\u003C\/strong\u003E, Song Zhou (Cornell University), and Madeleine Udell (Cornell University) received an honorable mention in the Undergraduate Operations Research Prize for their joint work, \u0026ldquo;Limited Memory Kelley\u0026rsquo;s Method Converges for Composite Convex and Submodular Objectives.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EGeorge Family Foundation Early Career Professor and Associate Professor \u003Cstrong\u003ETurgay Ayer\u003C\/strong\u003E, Ph.D. student \u003Cstrong\u003EZhaowei She\u003C\/strong\u003E, and Daniel Montanera (Georgia State University) received an honorable mention for the Public Sector Operations Research Best Paper Award for \u0026ldquo;Pay for Performance or Pay for Selection? An Analysis of the Capitation Payment Models in Health Care.\u0026rdquo;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003EFinalists\u003C\/strong\u003E\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPh.D. student \u003Cstrong\u003EPornpawee Bumpensanti\u003C\/strong\u003E was a finalist in the Manufacturing and Service Operations Management Society (MSOM) Student Paper Competition for the work \u0026ldquo;A Re-solving Heuristic with Uniformly Bounded Loss for Network Revenue Management,\u0026rdquo; coauthored with Assistant Professor \u003Cstrong\u003EHe Wang\u003C\/strong\u003E.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPh.D. student \u003Cstrong\u003EJuan Du\u003C\/strong\u003E, \u003Cstrong\u003EXiaowei Yue\u003C\/strong\u003E (Ph.D. 18), Jeffrey H. Hunt (Boeing), and Carolyn J. Stewart Chair and Professor \u003Cstrong\u003EJan Shi\u003C\/strong\u003E were finalists for the Quality, Statistics, and Reliability (QSR) Section Best Refereed Paper Award for \u0026ldquo;Optimal Placement of Actuators for Composite Fuselage Shape Control.\u0026quot;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPh.D. student \u003Cstrong\u003EShuang Li\u003C\/strong\u003E was a finalist in the Quality, Statistics, and Reliability (QSR) Section Best Student Paper Competition for the work \u0026ldquo;Scan B-Statistic for Kernel Change-point Detection.\u0026rdquo; Li also was a finalist in the Social Media Analytics Student Paper Competition for \u0026ldquo;Detecting Changes in Dynamic Events over Networks.\u0026quot; Harold R. and Mary Anne Nash Early Career Professor and Assistant Professor \u003Cstrong\u003EYao Xie\u003C\/strong\u003E is a co-author for both papers.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPh.D. student \u003Cstrong\u003ERuizhi Zhang\u003C\/strong\u003E was a finalist in the Quality, Statistics, and Reliability (QSR) Section Best Student Paper Competition for the work \u0026ldquo;Scalable Robust Monitoring of Large-scale Data Streams,\u0026rdquo; co-authored with Associate Professor \u003Cstrong\u003EYajun Mei\u003C\/strong\u003E and Carolyn J. Stewart Chair and Professor \u003Cstrong\u003EJan Shi\u003C\/strong\u003E.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EAmong the numerous winners, Anderson-Interface Chair and Professor Shabbir Ahmed received the 2018 Farkas Prize.\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"Among the numerous winners, Anderson-Interface Chair and Professor Shabbir Ahmed received the 2018 Farkas Prize."}],"uid":"28766","created_gmt":"2018-11-19 16:47:40","changed_gmt":"2018-11-27 15:23:39","author":"Shelley Wunder-Smith","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2018-11-19T00:00:00-05:00","iso_date":"2018-11-19T00:00:00-05:00","tz":"America\/New_York"},"extras":[],"hg_media":{"614639":{"id":"614639","type":"image","title":"The annual INFORMS conference was held in Phoenix from November 4-7.","body":null,"created":"1543332145","gmt_created":"2018-11-27 15:22:25","changed":"1543332176","gmt_changed":"2018-11-27 15:22:56","alt":"","file":{"fid":"234001","name":"INFORMS.jpg","image_path":"\/sites\/default\/files\/images\/INFORMS.jpg","image_full_path":"http:\/\/www.tlwarc.hg.gatech.edu\/\/sites\/default\/files\/images\/INFORMS.jpg","mime":"image\/jpeg","size":10409,"path_740":"http:\/\/www.tlwarc.hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/INFORMS.jpg?itok=ZJbOdD7C"}}},"media_ids":["614639"],"groups":[{"id":"1242","name":"School of Industrial and Systems Engineering (ISYE)"}],"categories":[],"keywords":[{"id":"179749","name":"INFORMS Conference"},{"id":"179426","name":"Farkas Prize"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:swundersmith3@gatech.edu\u0022\u003EShelley Wunder-Smith\u003C\/a\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EH. Milton Stewart School of Industrial and Systems Engineering\u003C\/p\u003E\r\n\r\n\u003Cp\u003E404.385.4745\u003C\/p\u003E\r\n","format":"limited_html"}],"email":["swundersmith3@gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}