Hrayer Aprahamian

Academic Advisor

Dr. Ebru Bish and Dr. Douglas Bish


  • Ph.D. in Industrial Systems Engineering (Operations Research), expected to graduate in May 2018
  • M.S. in Engineering Management (Financial Engineering), American University of Beirut, Lebanon
  • B.S. in Physics, Lebanese University, Beirut, Lebanon

Research Interests

My research interests lie in the application of Operations Research methodologies and statistical tools to problems arising in health care systems and public policy decision-making. My specific research focus is on the development of optimal risk-based screening policies and effective algorithms for public health screening. Applications include donated blood screening, population-level screening for sexually-transmitted diseases, and newborn screening for genetic mutations.

Research Methodologies

  • Stochastic Optimization
  • Robust Optimization
  • Combinatorial Optimization
  • Probability Theory


  • H. Aprahamian, D. R. Bish, and E. K. Bish. Optimal risk-based group testing strategies, with equity considerations. Under second round of review with Management Science.
  • H. Aprahamian, D. R. Bish, and E. K. Bish. Residual risk and waste in donated blood with pooled nucleic acid testing. Statistics in Medicine, 35(28):5283-5301, 2016.
  • H. Aprahamian, B. Maddah. Pricing Asian options via compound gamma and orthogonal polynomials. Applied Mathematics and Computation, 264:21-43, 2015.
  • H. Aprahamian, E. K. Bish, and D. R. Bish. Optimal static risk-based group testing under imperfectly observable risk. Under review with Operations Research.
  • H. Aprahamian, E. K. Bish, and D. R. Bish. Adaptive risk-based array pooling in public health screening. Under review with IISE Transactions.
  • N. Nguyen, E. K. Bish, and H. Aprahamian. Sequential prevalence estimation with pooling and continuous test outcomes under limited resources. Under second round of review with Statistics in Medicine.

Hrayer Aprahamian

Hrayer Aprahamian
Hrayer Aprahamian