Journal Article

Smooth Nested Simulation: Bridging Cubic and Square Root Convergence Rates in High Dimensions featured image

Smooth Nested Simulation: Bridging Cubic and Square Root Convergence Rates in High Dimensions

Nested simulation concerns estimating functionals of a conditional expectation via simulation. In this paper, we propose a new method based on kernel ridge regression to exploit …

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Wenjia Wang
How Does Risk Hedging Impact Operations? Insights from a Price-Setting Newsvendor Model featured image

How Does Risk Hedging Impact Operations? Insights from a Price-Setting Newsvendor Model

If a financial asset's price movement impacts a firm's product demand, the firm can respond to the impact by adjusting its operational decisions. For example, in the automotive …

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Liao Wang
Sample and Computationally Efficient Stochastic Kriging in High Dimensions featured image

Sample and Computationally Efficient Stochastic Kriging in High Dimensions

Stochastic kriging has been widely employed for simulation metamodeling to predict the response surface of complex simulation models. However, its use is limited to cases where the …

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Liang Ding

Knowledge Gradient for Selection with Covariates: Consistency and Computation

Knowledge gradient is a design principle for developing Bayesian sequential sampling policies to consider in this paper the ranking and selection problem in the presence of …

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Liang Ding
Ranking and Selection with Covariates for Personalized Decision Making featured image

Ranking and Selection with Covariates for Personalized Decision Making

We consider a ranking and selection problem in the context of personalized decision making, where the best alternative is not universal but varies as a function of observable …

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Haihui Shen
Distributionally Robust Selection of the Best featured image

Distributionally Robust Selection of the Best

Specifying a proper input distribution is often a challenging task in simulation modeling. In practice, there may be multiple plausible distributions that can fit the input data …

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Weiwei Fan

Enhancing Stochastic Kriging for Queueing Simulation with Stylized Models

Stochastic kriging is a popular metamodeling technique to approximate computationally expensive simulation models. However, it typically treats the simulation model as a black box …

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Haihui Shen
Affine Point Processes: Approximation and Efficient Simulation featured image

Affine Point Processes: Approximation and Efficient Simulation

We establish a central limit theorem and a large deviations principle for affine point processes, which are stochastic models of correlated event timing widely used in finance and …

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Xiaowei Zhang

On the Dynamics of a Finite Buffer Queue Conditioned on the Amount of Loss

This paper is concerned with computing large deviations asymptotics for the loss process in a stylized queueing model that is fed by a Brownian input process. In addition, the …

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Xiaowei Zhang