Apply now for WSU private scholarships for the 2015-16 academic year. The submission deadline for the application and all required materials is March 31, 2015.
Not all WSU Private Scholarships require submission of the Private Scholarship Application. If the Private Scholarship Application requirement is not indicated in the description of the scholarship, then only the submission of the Free Application for Federal Student Aid (FAFSA) is required.
Complete your 2015-16 FAFSA by March 31, 2015 at fafsa.ed.gov. The annual FAFSA is available January 1 for the upcoming year.
Incoming engineering graduate students, join us for this very important day of introductions to Wayne State University and the College of Engineering. Orientation is strongly recommended for all new graduate students, especially international students. This is the first step on your path to success as a graduate student. Don't delay--RSVP by January 1st!
Reminder: you may register for classes now! Please contact our advisors or the Graduate School with any specific questions. We look forward to seeing you this fall.
Faculty/Administration #1140 | Map 656 W. Kirby Detroit, MI 48202
Speaker: Siqian Shen, University of Michigan, Ann Arbor
Siqian Shen is an Assistant Professor of Industrial and Operations Engineering at the University of Michigan. She obtained a B.S. degree from Tsinghua University in China in 2007 and a Ph.D. from the University of Florida in Industrial and Systems Engineering in 2011. Her research interests are in mathematical optimization, particularly in stochastic programming, network optimization, and integer programming. Applications of her work include power system optimization, health care operations management, transportation networks, and cloud computing. She was named one of the two runners-up of the 2010 INFORMS Computing Society Best Student Paper award, was awarded the 1st Place of the 2012 IIE Pritsker Doctoral Dissertation Award, and was a recipient of 2012 IBM Smarter Planet Innovation Faculty Award.
Title: Chance-Constrained Surgery Planning Under Uncertain or Ambiguous Surgery Durations
Abstract: We consider surgery planning problems under uncertain surgery durations. We decide which operating rooms (ORs) to open, the allocation of surgeries to ORs, as well as the sequence and time to start each surgery. We formulate a binary integer programming model with individual and joint chance constraints to restrict the risk of having surgery delays and OR overtime, respectively. The chance-constrained program is reformulated as an integer program based on finite samples of the random surgery time. We further consider a distributionally robust problem variant by assuming ambiguous distributions of random surgery durations, for which we build a confidence set using statistical divergence functions. The robust variant restricts the maximum risk of surgery delay and overtime for any probability distribution function in the confidence set, and is equivalent to a chance-constrained program evaluated on an empirical probability function but with smaller risk tolerances. We compare different models and derive insights about surgery planning under data uncertainty and ambiguity using problem instances based on data from hospital-based surgery practice.