ISyE’s research in applied probability and simulation ranges from theory to application. Current methodological research in applied probability includes:
- Approximations of queuing networks.
 - Rare events (e.g., large deviations, extreme values, and tail asymptotics) in queuing systems, Gaussian processes, and heavy-tailed environments.
 - Duality, mixing times, and phase transitions in (controlled or noncontrolled) Markov processes.
 - Design and analysis of algorithms and related combinatorics.
 - Inventory theory.
 
On the simulation side, one finds projects that seek to improve the efficiency and validity of complicated simulations. Examples of such efforts include:
- Optimization of simulation models (e.g., via adaptive random search, ranking and selection, or multinomial selection).
 - Simulation of stochastic processes with strong dependencies.
 - Sequential procedures for estimating quantiles.
 - Variance reduction methods to estimate option prices.
 - Sampling from model manifolds.
 
Recent projects
Much of the applied probability and simulation research is on modeling and analysis of real-world systems involving uncertainty. Recent projects include:
- Allocation of resources such as clerks, laptops, and voting machines for elections.
 - Option pricing and dynamic portfolio choice.
 - Flexible server assignment in queuing networks.
 - Modeling and surveillance of infectious disease outbreaks.
 - Real-time management of complex resource allocation systems.
 - Routing and design of the overhead AGV system in a wafer fab.
 - Pricing in networks of queues.
 - Probabilistic modeling of fire ant (Solenopsis invicta) bivouac towers.
 - Admission control in loss networks.
 - Estimation of the probability of winning a random round-robin tournament.
 - Robust design of unit-load storage systems.
 - Multi-armed bandit problems.