Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Wong, Samuel W. K."'
Autor:
Zhao, Yuxuan, Wong, Samuel W. K.
Dynamic systems described by differential equations often involve feedback among system components. When there are time delays for components to sense and respond to feedback, delay differential equation (DDE) models are commonly used. This paper con
Externí odkaz:
http://arxiv.org/abs/2406.15170
Autor:
He, Shiyu, Wong, Samuel W. K.
We propose a Bayesian hierarchical model to address the challenge of spatial misalignment in spatio-temporal data obtained from in situ and satellite sources. The model is fit using the INLA-SPDE approach, which provides efficient computation. Our me
Externí odkaz:
http://arxiv.org/abs/2401.04723
Autor:
Hou, Zhaoran, Wong, Samuel W. K.
State space models (SSMs) are widely used to describe dynamic systems. However, when the likelihood of the observations is intractable, parameter inference for SSMs cannot be easily carried out using standard Markov chain Monte Carlo or sequential Mo
Externí odkaz:
http://arxiv.org/abs/2312.13044
Autor:
He, Shiyu, Bui, Trang, Huang, Yuying, Zhang, Wenling, Jian, Jie, Wong, Samuel W. K., Wirjanto, Tony S.
To assess the impact of climate change on the Canadian economy, we investigate and model the relationship between seasonal climate variables and economic growth across provinces and economic sectors. We further provide projections of climate change i
Externí odkaz:
http://arxiv.org/abs/2311.03497
Inferring the parameters of ordinary differential equations (ODEs) from noisy observations is an important problem in many scientific fields. Currently, most parameter estimation methods that bypass numerical integration tend to rely on basis functio
Externí odkaz:
http://arxiv.org/abs/2304.02127
In this paper, nonlinear time-history dynamic analyses of selected earthquake ground motions are conducted on designated wood-frame podium buildings and the resulting inter-story drifts are analyzed. We aim to construct a reliable region where perfor
Externí odkaz:
http://arxiv.org/abs/2301.12302
Ordinary differential equation (ODE) models are widely used to describe chemical or biological processes. This article considers the estimation and assessment of such models on the basis of time-course data. Due to experimental limitations, time-cour
Externí odkaz:
http://arxiv.org/abs/2212.10653
Autor:
Hou, Zhaoran, Wong, Samuel W. K.
Sequential Monte Carlo (SMC) methods are widely used to draw samples from intractable target distributions. Particle degeneracy can hinder the use of SMC when the target distribution is highly constrained or multimodal. As a motivating application, w
Externí odkaz:
http://arxiv.org/abs/2210.14216
Autor:
Zhao, Yuxuan, Wong, Samuel W. K.
The number of confirmed COVID-19 cases reached over 1.3 million in Ontario, Canada by June 4, 2022. The continued spread of the virus underlying COVID-19 has been spurred by the emergence of variants since the initial outbreak in December, 2019. Much
Externí odkaz:
http://arxiv.org/abs/2210.13323
This article presents the MAGI software package for the inference of dynamic systems. The focus of MAGI is on dynamics modeled by nonlinear ordinary differential equations with unknown parameters. While such models are widely used in science and engi
Externí odkaz:
http://arxiv.org/abs/2203.06066