Search Results for author: MengYing Lei

Found 5 papers, 2 papers with code

Bayesian Kernelized Tensor Factorization as Surrogate for Bayesian Optimization

no code implementations28 Feb 2023 MengYing Lei, Lijun Sun

However, such simple kernel specifications are deficient in learning functions with complex features, such as being nonstationary, nonseparable, and multimodal.

Bayesian Optimization Gaussian Processes +1

Bayesian Complementary Kernelized Learning for Multidimensional Spatiotemporal Data

no code implementations21 Aug 2022 MengYing Lei, Aurelie Labbe, Lijun Sun

Probabilistic modeling of multidimensional spatiotemporal data is critical to many real-world applications.

Gaussian Processes

Spatial Aggregation and Temporal Convolution Networks for Real-time Kriging

1 code implementation24 Sep 2021 Yuankai Wu, Dingyi Zhuang, MengYing Lei, Aurelie Labbe, Lijun Sun

Specifically, we propose a novel spatial aggregation network (SAN) inspired by Principal Neighborhood Aggregation, which uses multiple aggregation functions to help one node gather diverse information from its neighbors.

Scalable Spatiotemporally Varying Coefficient Modelling with Bayesian Kernelized Tensor Regression

no code implementations31 Aug 2021 MengYing Lei, Aurelie Labbe, Lijun Sun

To address this challenge, we summarize the spatiotemporally varying coefficients using a third-order tensor structure and propose to reformulate the spatiotemporally varying coefficient model as a special low-rank tensor regression problem.

regression

Low-Rank Autoregressive Tensor Completion for Spatiotemporal Traffic Data Imputation

1 code implementation30 Apr 2021 Xinyu Chen, MengYing Lei, Nicolas Saunier, Lijun Sun

In this paper, we propose a low-rank autoregressive tensor completion (LATC) framework by introducing \textit{temporal variation} as a new regularization term into the completion of a third-order (sensor $\times$ time of day $\times$ day) tensor.

Imputation Time Series +2

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