Isogeometric collocation method for the fractional Laplacian in the 2D bounded domain

K Xu, E Darve - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
We consider the isogeometric analysis for fractional PDEs involving the fractional Laplacian
in two dimensions. An isogeometric collocation method is developed to discretize the …

Generative archimedean copulas

Y Ng, A Hasan, K Elkhalil… - Uncertainty in Artificial …, 2021 - proceedings.mlr.press
We propose a new generative modeling technique for learning multidimensional cumulative
distribution functions (CDFs) in the form of copulas. Specifically, we consider certain classes …

Distributed machine learning for computational engineering using MPI

K Xu, W Zhu, E Darve - arxiv preprint arxiv:2011.01349, 2020 - arxiv.org
We propose a framework for training neural networks that are coupled with partial differential
equations (PDEs) in a parallel computing environment. Unlike most distributed computing …

Subordinated Processes and Spectral Analysis for High Frequency Time Series

CM Berry - 2024 - search.proquest.com
In many application areas it is common to come across time series data which challenge the
assumptions of well-known methods, such as by being non-stationary, non-Gaussian, or …

Deep variance gamma processes

CM Berry, W Kleiber - Stat, 2023 - Wiley Online Library
Lévy processes are useful tools for analysis and modeling of jump‐diffusion processes.
Such processes are commonly used in the financial and physical sciences. One approach to …

[책][B] Machine Learning for Computational Engineering

K Xu - 2021 - search.proquest.com
This dissertation presents my work on solving inverse problems in computational science
and engineering using a combination of partial differential equations (PDEs) and deep …

Can we imitate stock price behavior to reinforcement learn option price?

X ** - Authorea Preprints, 2023 - techrxiv.org
This paper presents a framework of imitating the price behavior of the underlying stock for
reinforcement learning option price. We use accessible features of the equities pricing data …