Arkajyoti Roy Ph.D.


Arkajyoti Roy Ph.D.

Position: Assistant Professor
Phone: (419) 372-2958
Address: 349 Business Administration


"Dr. Roy received his Ph.D. at the School of Industrial Engineering at Purdue University. He was concurrently a Pre-Doctoral Fellow in the Department of Industrial Engineering and Management Sciences at Northwestern University. Dr. Roy also received his B.S. in Industrial Engineering from Purdue University.  His research area focuses on optimal decision-making under uncertainty with applications in cancer radiation therapy.  For his research, he has collaborated with and was embedded in the radiation oncology departments of the Indiana University Cancer Center, as well as, the Northwestern Memorial Hospital. He has received Purdue's highest Excellence in Teaching award both in 2012 and in 2013. He has received the Best Regional Paper Award from the American Association of Physicists in Medicine symposium in 2013 and the best poster award at the Health System Optimization Workshop in 2014.

In addition to teaching and research endeavors, Dr. Roy is a member of international organizations such as Institute for Operations Research and the Management Sciences (INFORMS) and American Association of Physicists in Medicine (AAPM)."

My Primary research area is in robust decision-making with focus on robust optimization and robust analytics. Application areas include:

  • Radiation Therapy
  • Healthcare Delivery System

Peer-Reviewed Journal Publications

1. Robust Optimization with Time-Dependent Uncertainty in Radiation Therapy, w/ O. Nohadani, IISE Trans. Healthc. Syst. Eng. 2017; 7(2):81-92.

2. On correlations in IMRT planning aims, w/ I. Das & O. Nohadani, J. App. Clin. Med. Phys. 2016; 17(6). doi:10.1120/jacmp.v17i6.6411.

Peer-Reviewed Conference Publications 

1. Robustness in Hypoxia-Guided IMRT Planning, w/ O. Nohadani, Med. Phys. 2017; 44(6):2751.                         

Featured SNAP oral presentation at AAPM Annual Conference, Denver CO.

2. Incorporating Time-Dependent Hypoxia in IMRT Planning, w/ O. Nohadani, Med. Phys. 2016; 43(6):3322.      

Featured SNAP oral presentation at AAPM Annual Conference, Washington DC.

3. Unexpected Correlations Amongst Recommended Planning Aims in IMRT, w/ O. Nohadani & I. Das, Int. J. Rad. Onc. Biol. Phys. 2015; 93(3):E609

4. A Retrospective Correlation Analysis On Dose-Volume Control Points and Treatment Outcomes, w/ T. Refaat, I. Baccus, D. Cutright, V. Sathiaseelan, B. Mittal, & O. Nohadani, Med. Phys. 2015; 42(6):3347

5. Large-Scale DVH Quality Study: Correlated Aims Lead Relaxations, w/ O. Nohadani & I. Das, Med. Phys. 2015; 42(6):3457

6. Time-Resolved Stochastic IMRT Planning, w/ O. Nohadani, Med. Phys. 2013; 40(6):354

7. Analysis of Planner Dependence in IMRT, w/ I. Das, S. Srivastava, & O. Nohadani, Med. Phys. 2013; 40(6):260

8. On Augmented DVH Analysis, w/ A. Loveless, I. Das, & O. Nohadani, Med. Phys. 2013; 40(6):261

9. Metrics for Comparing Dose Volume Histograms, w/ O. Nohadani, C. Medawar, S. Srivastava, & I. Das, Med. Phys. 2012; 39(6):3851


STAT 2120, Elementary Statistical Methods II
Topics: Estimation, hypothesis testing, regression, correlation, analysis of variance and contingency tables.

STAT 4060/5060, Sampling Design
Topics: Planning surveys; sample size, stratified, systematic, and cluster sampling; sources of error in sampling.

Stat 6010/6010P, Statistics for Managerial Decisions
Topics: Exploratory data analysis, confidence intervals, hypothesis testing, regression, forecasting, analysis of variance, and contingency tables