Search Results for author: Johanna Ziegel

Found 3 papers, 0 papers with code

Isotonic Recalibration under a Low Signal-to-Noise Ratio

no code implementations6 Jan 2023 Mario V. Wüthrich, Johanna Ziegel

Insurance pricing systems should fulfill the auto-calibration property to ensure that there is no systematic cross-financing between different price cohorts.

regression

E-backtesting

no code implementations27 Aug 2022 Qiuqi Wang, Ruodu Wang, Johanna Ziegel

In the recent Basel Accords, the Expected Shortfall (ES) replaces the Value-at-Risk (VaR) as the standard risk measure for market risk in the banking sector, making it the most important risk measure in financial regulation.

Characteristic kernels on Hilbert spaces, Banach spaces, and on sets of measures

no code implementations15 Jun 2022 Johanna Ziegel, David Ginsbourger, Lutz Dümbgen

We present new classes of positive definite kernels on non-standard spaces that are integrally strictly positive definite or characteristic.

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