Search Results for author: Yu-Hang Tang

Found 9 papers, 4 papers with code

Efficient Chemical Space Exploration Using Active Learning Based on Marginalized Graph Kernel: an Application for Predicting the Thermodynamic Properties of Alkanes with Molecular Simulation

1 code implementation1 Sep 2022 Yan Xiang, Yu-Hang Tang, Zheng Gong, Hongyi Liu, Liang Wu, Guang Lin, Huai Sun

We introduce an explorative active learning (AL) algorithm based on Gaussian process regression and marginalized graph kernel (GPR-MGK) to explore chemical space with minimum cost.

Active Learning GPR +2

Learning Stochastic Dynamics with Statistics-Informed Neural Network

1 code implementation24 Feb 2022 Yuanran Zhu, Yu-Hang Tang, Changho Kim

We devise mechanisms for training the neural network model to reproduce the correct \emph{statistical} behavior of a target stochastic process.

Graphical Gaussian Process Regression Model for Aqueous Solvation Free Energy Prediction of Organic Molecules in Redox Flow Battery

no code implementations15 Jun 2021 Peiyuan Gao, Xiu Yang, Yu-Hang Tang, Muqing Zheng, Amity Anderson, Vijayakumar Murugesan, Aaron Hollas, Wei Wang

The solvation free energy of organic molecules is a critical parameter in determining emergent properties such as solubility, liquid-phase equilibrium constants, and pKa and redox potentials in an organic redox flow battery.

Dimensionality Reduction

Nonlinear Matrix Approximation with Radial Basis Function Components

no code implementations3 Jun 2021 Elizaveta Rebrova, Yu-Hang Tang

We introduce and investigate matrix approximation by decomposition into a sum of radial basis function (RBF) components.

Detecting Label Noise via Leave-One-Out Cross-Validation

no code implementations21 Mar 2021 Yu-Hang Tang, Yuanran Zhu, Wibe A. de Jong

Optimizing the noise model using maximum likelihood estimation leads to the containment of the GPR model's predictive error by the posterior standard deviation in leave-one-out cross-validation.

GPR regression

A High-Throughput Solver for Marginalized Graph Kernels on GPU

no code implementations14 Oct 2019 Yu-Hang Tang, Oguz Selvitopi, Doru Popovici, Aydın Buluç

To cope with the gap between the instruction throughput and the memory bandwidth of current generation GPUs, our solver forms the tensor product linear system on-the-fly without storing it in memory when performing matrix-vector dot product operations in PCG.

Vocal Bursts Intensity Prediction

A GPU-accelerated package for simulation of flow in nanoporous source rocks with many-body dissipative particle dynamics

2 code implementations25 Mar 2019 Yidong Xia, Ansel Blumers, Zhen Li, Lixiang Luo, Yu-Hang Tang, Joshua Kane, Hai Huang, Matthew Andrew, Milind Deo, Jan Goral

Lastly, we demonstrate, through a flow simulation in realistic shale pores, that the CPU counterpart requires 840 Power9 cores to rival the performance delivered by our package with four V100 GPUs on ORNL's Summit architecture.

Computational Physics

Prediction of Atomization Energy Using Graph Kernel and Active Learning

no code implementations16 Oct 2018 Yu-Hang Tang, Wibe A. de Jong

Data-driven prediction of molecular properties presents unique challenges to the design of machine learning methods concerning data structure/dimensionality, symmetry adaption, and confidence management.

Active Learning Management

GPU-accelerated Red Blood Cells Simulations with Transport Dissipative Particle Dynamics

2 code implementations18 Nov 2016 Ansel L. Blumers, Yu-Hang Tang, Zhen Li, Xuejin Li, George E. Karniadakis

We observe a speedup of 10. 1 on one GPU over all 16 cores within a single node, and a weak scaling efficiency of 91% across 256 nodes.

Computational Physics Biological Physics

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