Publications (students indicated with a *), updated May 2018. Here is the Google Scholar page.

Rossi, M*, and Balasubramanian, H., Panel size, office visits and care coordination events: a new methodology based on longitudinal event histories, accepted in Medical Decision Making: Policy and Practice, 2018, pdf.

Alvarez Oh, J.*, Balasubramanian, H., Koker, E.*, Muriel, A., Stochastic appointment scheduling in a team primary care practice with two flexible nurses and two dedicated providers, accepted in Service Science, 2018, pdf.

Shin, S-Y*, Brun, Y., Balasubramanian, H., Osterweil, L., and Henneman, P., Discrete event simulation and integer-linear programming for constraint-aware resource scheduling, IEEE Transactions on Systems, Man and Cybernetics, published online, 2017,pdf.

Chen, Yan, Hari Balasubramanian, and Yong-Hong Kuo. "Appointment Overbooking and Scheduling: Tradeoffs Between Schedule Efficiency and Timely Access to Service." In International Conference on Health Care Systems Engineering, pp. 245-255. Springer 2017.

Bryce, R.*, Eaton, M.*, Balasubramanian, H., Kosanovic, D., Solar energy system design and storage scheduling via linear techniques, broadening renewable integration, Proceedings of ECOS 2017, pdf.

Balasubramanian, H., Murphy, N.*, and Rossi, M.*, A conceptual framework for modeling longitudinal healthcare encounter data. In Winter Simulation Conference (WSC), 2016 (pp. 2147-2156), pdf.

Ozen, A.*, Marmor, Y., Rohleder, T., Balasubramanian, H., Huddleston, J., & Huddleston, P. (2015). Optimization and simulation of orthopedic spine surgery cases at Mayo Clinic. Manufacturing & Service Operations Management, 18(1), 157-175 pdf.

Henneman, P. L., Shin, S. Y.*, Brun, Y., Balasubramanian, H., Blank, F., & Osterweil, L. J. (2015). Using computer simulation to study nurse-to-patient ratios in an emergency department. Journal of Nursing Administration, 45(11), 551-556, pdf.

Shin, S. Y*., Brun, Y., Osterweil, L. J., Balasubramanian, H., & Henneman, P. L. (2015). Resource Specification for Prototyping Human-Intensive Systems. In Fundamental Approaches to Software Engineering (pp. 332-346). Springer Berlin Heidelberg pdf.

Chen, Y., Kuo, Y-H, Balasubramanian, H., Wen, C., Using Simulation to Examine Appointment Overbooking Schemes for A Medical Imaging Center, Proceedings of the Winter Simulation Conference, 2015, pdf.

Alvarez Oh*, H-J, Muriel, A., and Balasubramanian, H., A user-friendly Excel simulation for scheduling in primary care practices, Proceedings of the Winter Simulation Conference, 2014 pdf. Excel tool for dedicated practices (one nurse and one provider) is here. Excel tool for flexible practices (two nurses and two providers) is here.

Ozen, A.*, Balasubramanian, H., Samra, P., Ehresman, M., Li, H., Fairman, T., and Roche, J., The impact of hourly discharge rates and prioritization on timely access to inpatient beds, Proceedings of the Winter Simulation Conference, 2014, pdf.

Henneman, P. L., Nathanson, B. H., Ribeiro, K.*, and Balasubramanian, H. (2014). The impact of age and gender on resource utilization and profitability in ED patients seen and released. The American Journal of Emergency Medicine, 32(10), 1159-1167.

Stahl, J. E., Balasubramanian, H. J., Gao, X*., Overko, S.*, & Fosburgh, B. (2014). Balancing Clinical Experience in Outpatient Residency Training. Medical Decision Making, 34(4), 464-472 pdf.

Oh, H. J., Muriel, A., Balasubramanian, H., Atkinson, K., & Ptaszkiewicz, T. (2013). Guidelines for scheduling in primary care under different patient types and stochastic nurse and provider service times. IIE Transactions on Healthcare Systems Engineering, 3(4), 263-279, pdf.

Khowala, K.*, Fowler, J., Keha, A., & Balasubramanian, H. (2014). Single machine scheduling with interfering job sets. Computers & Operations Research, 45, 97-107, pdf. Test instances for Problem 1 or P1 with text file description; test instances for Problem 2 or P2 with text file and description. Separate link for paper and test cases.

Balasubramanian, H., Biehl, S.*, Dai, L.*, & Muriel, A. (2014). Dynamic allocation of same-day requests in multi-physician primary care practices in the presence of prescheduled appointments. Health Care Management Science, 17(1), 31-48, pdf.

Ozen, A.*, and Balasubramanian, H., The impact of case-mix on timely access to appointments in a primary care group practice, Health Care Management Science. 16 (2): 101-118, 2013, pdf; spreadsheet.

Balasubramanian, H., Muriel, A., Ozen, A.*, Wang, L.*, Hippchen, J.*, and Gao, X.*, Capacity allocation and flexibility in primary care, Springer Book on Healthcare Operations Management, Editor: Brian Denton, 2013, pdf.

Zhang, J.*, Denton, B., Balasubramanian, H., Shah, N., and Inman, B., Optimization of prostate biopsy referral decisions, Manufacturing and Service Operations Management, 2012, 14(4), 529-547, pdf.

Zhang, J.*, Denton, B., Balasubramanian, H., Shah, N., and Inman, B., Optimization of PSA screening policies: A comparison of patient and societal perspectives, Medical Decision Making, 2012, Mar-Apr; 32(2):337-49, pdf.

Balasubramanian, H., Muriel, A., Wang, L.*, The impact of flexibility and capacity allocation on the performance of primary care practices, Flexible Services and Manufacturing Journal, 2012, 24 (4), 422-447. pdf.

Balasubramanian, H., Banerjee, R., Denton, B., Naessens, J., Wood, D., and Stahl, J., Improving clinical access and continuity using physician panel redesign, Journal of General Internal Medicine, 2010, 25 (10), 1109-15. (pdf).

Balasubramanian, H., Denton, B., Lin, M.*, Managing physician panels in primary care, Handbook of Healthcare Delivery Systems, CRC Press (Taylor and Francis), Editor: Yuehwern Yih, 10-1, 2011.

Denton, B., Miller, A., Balasubramanian, H., and Huschka, T., Optimal allocation of surgery blocks to operating rooms under uncertainty, Operations Research, 58:802:816, 2010. (pdf)

Berg, B., Nelson, H., Denton,B., Balasubramanian, H., Rahman, A., Bailey, A., and Lindor, K., A discrete event simulation model to evaluate the operational performance of a colonoscopy suite, Medical Decision Making, 30(3), pp 380-387, 2010. (pdf)

Balasubramanian, H., The resettlement of refugee farmers, OR/MS Today, April 2009, Volume 36, #2 (special issue on international applications of operations research). More details here.

Balasubramanian, H., Fowler, J., Keha, A. and Pfund, M., Scheduling interfering job sets on parallel machines, European Journal of Operational Research, 2009, 199 (1), pages 55-67 (pdf)

Pfund, M., Balasubramanian, H., Fowler, J., Mason, S., and Rose, O., A multi-criteria approach to scheduling wafer fabrication facilities, Journal of Scheduling, 11 (1), 2008, 29-47 (pdf).

Mohan, S., Gopalakrishnan, M., Balasubramanian, H., and Chandrashekar, A., A lognormal approximation of activity duration in PERT using two time estimates, Journal of the Operational Research Society, Vol 58, Number 6, 827-831, 2007 (pdf).

Monch, L., Balasubramanian, H., Fowler, J., and Pfund, M., Heuristic scheduling of jobs on parallel batch machines with incompatible job families and unequal ready times, Computers and Operations Research, Vol 32 (11), 2005, 2731-2750 (pdf).

Balasubramanian, H., Monch, L., Fowler, J.W., and Pfund, M.E., Genetic Algorithm based scheduling of parallel batch machines with incompatible job families to minimize total weighted tardiness, International Journal of Production Research, Vol 42 (8), 2004 (pdf). [masters thesis]

Ponnambalam, S., Balasubramanian, H., Kataria, M., and Gadicherla, A., A TSP-GA multi-objective algorithm for flow-shop scheduling, International Journal of Advanced Manufacturing Technology, Vol 23, 2004, 909-915. [undergraduate thesis]

Contact: hbalasubraman at ecs dot umass dot edu