Search Results for author: Ralf Korn

Found 9 papers, 0 papers with code

Multi-Asset Spot and Option Market Simulation

no code implementations13 Dec 2021 Magnus Wiese, Ben Wood, Alexandre Pachoud, Ralf Korn, Hans Buehler, Phillip Murray, Lianjun Bai

We construct realistic spot and equity option market simulators for a single underlying on the basis of normalizing flows.

Estimating the Value-at-Risk by Temporal VAE

no code implementations3 Dec 2021 Robert Sicks, Stefanie Grimm, Ralf Korn, Ivo Richert

Estimation of the value-at-risk (VaR) of a large portfolio of assets is an important task for financial institutions.

Unifying the theory of storage and the risk premium by an unobservable intrinsic electricity price

no code implementations8 Nov 2020 Wieger Hinderks, Ralf Korn, Andreas Wagner

In this paper we introduce a new concept for modelling electricity prices through the introduction of an unobservable intrinsic electricity price $p(\tau)$.

A Generalised Linear Model Framework for $β$-Variational Autoencoders based on Exponential Dispersion Families

no code implementations11 Jun 2020 Robert Sicks, Ralf Korn, Stefanie Schwaar

Although variational autoencoders (VAE) are successfully used to obtain meaningful low-dimensional representations for high-dimensional data, the characterization of critical points of the loss function for general observation models is not fully understood.

Systematic Generalization

Machine Learning in Least-Squares Monte Carlo Proxy Modeling of Life Insurance Companies

no code implementations5 Sep 2019 Anne-Sophie Krah, Zoran Nikolić, Ralf Korn

Under the Solvency II regime, life insurance companies are asked to derive their solvency capital requirements from the full loss distributions over the coming year.

BIG-bench Machine Learning regression

Quant GANs: Deep Generation of Financial Time Series

no code implementations15 Jul 2019 Magnus Wiese, Robert Knobloch, Ralf Korn, Peter Kretschmer

Modeling financial time series by stochastic processes is a challenging task and a central area of research in financial mathematics.

Time Series Time Series Analysis

Copula & Marginal Flows: Disentangling the Marginal from its Joint

no code implementations7 Jul 2019 Magnus Wiese, Robert Knobloch, Ralf Korn

However, so far exact modeling or extrapolation of distributional properties such as the tail asymptotics generated by a generative network is not available.

Image Generation

Cannot find the paper you are looking for? You can Submit a new open access paper.