1 Engineering Drive 2, Singapore 117576

Office: EA-05-21

Email: heshuangchi(at)nus(dot)edu(dot)sg

Research Fields

  • Stochastic modeling, analysis, and control

  • Applications in service, healthcare, and transportation systems

  • Statistical and adaptive signal processing

Vita

Selected Publications


  1. P. Cao, S. He, J. Huang, and Y. Liu, “To pool or not to pool: Queueing design for large-scale service systems,” Operations Research. Forthcoming.

  2. S. He, “Diffusion approximation for efficiency-driven queues when customers are patient,” Operations Research, vol. 68, no. 4, pp. 1265–1284, Jul. 2020.

  3. S. He, M. Sim, and M. Zhang, “Data-driven patient scheduling in emergency departments: A hybrid robust–stochastic approach,” Management Science, vol. 65, no. 9, pp. 4123–4140, Sep. 2019.

  4. D. Zhang, Y. Liu, and S. He, “Vehicle assignment and relays for one-way electric car-sharing systems,” Transportation Research Part B: Methodological, vol. 120, pp. 125–146, Feb. 2019.

  5. S. He, D. Yao, and H. Zhang, “Optimal ordering policy for inventory systems with quantity-dependent setup costs,” Mathematics of Operations Research, vol. 42, no. 4, pp. 979–1006, Nov. 2017.

  6. J. G. Dai and S. He, “Many-server queues with customer abandonment: Numerical analysis of their diffusion model,” Stochastic Systems, vol. 3, no. 1, pp. 96–146, Nov. 2013.

  7. J. G. Dai, S. He, and T. Tezcan, “Many-server diffusion limits for G/Ph/n+GI queues,” The Annals of Applied Probability, vol. 20, no. 5, pp. 1854–1890, Oct. 2010.

  8. J. G. Dai and S. He, “Customer abandonment in many-server queues,” Mathematics of Operations Research, vol. 35, no. 2, pp. 347–362, May 2010.

  9. J. K. Tugnait, S. He, and H. Kim, “Doubly-selective channel estimation using exponential basis models and subblock tracking,” IEEE Transactions on Signal Processing, vol. 58, no. 3, pp. 1275–1289, Mar. 2010.

  10. S. He and J. K. Tugnait, “On doubly selective channel estimation using superimposed training and discrete prolate spheroidal sequences,” IEEE Transactions on Signal Processing, vol. 56, no. 7, pp. 3214–3228, Jul. 2008.

  11. S. He, J. K. Tugnait, and X. Meng, “On superimposed training for MIMO channel estimation and symbol detection,” IEEE Transactions on Signal Processing, vol. 55, no. 6, pp. 3007–3021, Jun. 2007.

Latest revision: December 4, 2020