On neural differential equations
P Kidger - arXiv preprint arXiv:2202.02435, 2022 - arxiv.org
The conjoining of dynamical systems and deep learning has become a topic of great
interest. In particular, neural differential equations (NDEs) demonstrate that neural networks …
interest. In particular, neural differential equations (NDEs) demonstrate that neural networks …
Neural controlled differential equations for irregular time series
Neural ordinary differential equations are an attractive option for modelling temporal
dynamics. However, a fundamental issue is that the solution to an ordinary differential …
dynamics. However, a fundamental issue is that the solution to an ordinary differential …
Neural sdes as infinite-dimensional gans
Stochastic differential equations (SDEs) are a staple of mathematical modelling of temporal
dynamics. However, a fundamental limitation has been that such models have typically been …
dynamics. However, a fundamental limitation has been that such models have typically been …
Conditional sig-wasserstein gans for time series generation
Generative adversarial networks (GANs) have been extremely successful in generating
samples, from seemingly high dimensional probability measures. However, these methods …
samples, from seemingly high dimensional probability measures. However, these methods …
Sig-Wasserstein GANs for time series generation
Synthetic data is an emerging technology that can significantly accelerate the development
and deployment of AI machine learning pipelines. In this work, we develop high-fidelity time …
and deployment of AI machine learning pipelines. In this work, we develop high-fidelity time …
A data-driven market simulator for small data environments
H Buehler, B Horvath, T Lyons, IP Arribas… - arXiv preprint arXiv …, 2020 - arxiv.org
Neural network based data-driven market simulation unveils a new and flexible way of
modelling financial time series without imposing assumptions on the underlying stochastic …
modelling financial time series without imposing assumptions on the underlying stochastic …
The universal approximation property: characterization, construction, representation, and existence
A Kratsios - Annals of Mathematics and Artificial Intelligence, 2021 - Springer
The universal approximation property of various machine learning models is currently only
understood on a case-by-case basis, limiting the rapid development of new theoretically …
understood on a case-by-case basis, limiting the rapid development of new theoretically …
The Signature Kernel is the solution of a Goursat PDE
Recently, there has been an increased interest in the development of kernel methods for
learning with sequential data. The signature kernel is a learning tool with the potential to …
learning with sequential data. The signature kernel is a learning tool with the potential to …
Signature-based models: theory and calibration
We consider asset price models whose dynamics are described by linear functions of the
(time extended) signature of a primary underlying process, which can range from a (market …
(time extended) signature of a primary underlying process, which can range from a (market …
Joint calibration to SPX and VIX options with signature‐based models
C Cuchiero, G Gazzani, J Möller… - Mathematical …, 2023 - Wiley Online Library
We consider a stochastic volatility model where the dynamics of the volatility are described
by a linear function of the (time extended) signature of a primary process which is supposed …
by a linear function of the (time extended) signature of a primary process which is supposed …