Liang Ding

Liang Ding

Assistant Professor in School of Data Science, Fudan University.
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
High-Dimensional Simulation Optimization via Brownian Fields and Sparse Grids featured image

High-Dimensional Simulation Optimization via Brownian Fields and Sparse Grids

High-dimensional simulation optimization is notoriously challenging. We propose a new sampling algorithm that converges to a global optimal solution and suffers minimally from the …

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Liang Ding

Scalable Stochastic Kriging with Markovian Covariances

Stochastic kriging is a popular technique for simulation metamodeling due to its flexibility and analytical tractability. Its computational bottleneck is the inversion of a …

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Liang Ding

Sequential Sampling for Bayesian Robust Ranking and Selection

We consider a Bayesian ranking and selection problem in the presence of input distribution uncertainty. The distribution uncertainty is treated from a robust perspective. A naive …

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Xiaowei Zhang