no code implementations • 16 Jul 2023 • Likun Zhang, Xiaoyu Ma, Christopher K. Wikle, Raphaël Huser
Many real-world processes have complex tail dependence structures that cannot be characterized using classical Gaussian processes.
no code implementations • 5 Jun 2022 • Christopher K. Wikle, Andrew Zammit-Mangion
Deep neural network models have become ubiquitous in recent years, and have been applied to nearly all areas of science, engineering, and industry.
1 code implementation • 8 Sep 2020 • Toryn L. J. Schafer, Christopher K. Wikle, Mevin B. Hooten
Agent-based methods allow for defining simple rules that generate complex group behaviors.
1 code implementation • 29 Oct 2019 • Andrew Zammit-Mangion, Christopher K. Wikle
Both procedures tend to be excellent for prediction purposes over small time horizons, but are generally time-consuming and, crucially, do not provide a global prior model for the temporally-varying dynamics that is realistic.
no code implementations • 22 Feb 2019 • Christopher K. Wikle
This overview paper presents a brief introduction to the deep hierarchical DSTM (DH-DSTM) framework, and deep models in machine learning, culminating with the deep neural DSTM (DN-DSTM).
no code implementations • 28 Jun 2018 • Patrick L. McDermott, Christopher K. Wikle
The methodology is first applied to a data set simulated from a novel non-Gaussian multiscale Lorenz-96 dynamical system simulation model and then to a long-lead United States (U. S.) soil moisture forecasting application.
no code implementations • 2 Nov 2017 • Patrick L. McDermott, Christopher K. Wikle
Recurrent neural networks (RNNs) are nonlinear dynamical models commonly used in the machine learning and dynamical systems literature to represent complex dynamical or sequential relationships between variables.
no code implementations • 16 Aug 2017 • Patrick L. McDermott, Christopher K. Wikle
Spatio-temporal data and processes are prevalent across a wide variety of scientific disciplines.