1 code implementation • 6 Mar 2024 • Paul Wilsens, Katrien Antonio, Gerda Claeskens
We apply our methodology on a real dataset and find that the reduced hierarchy is an improvement over the original hierarchical structure and reduced structures proposed in the literature.
1 code implementation • 19 Oct 2023 • Freek Holvoet, Katrien Antonio, Roel Henckaerts
We compare in detail the performance of: a generalized linear model on binned input data, a gradient-boosted tree model, a feed-forward neural network (FFNN), and the combined actuarial neural network (CANN).
no code implementations • 21 Aug 2023 • Bavo D. C. Campo, Katrien Antonio
We therefore design a simulation machine that is engineered to create synthetic data with a network structure and available covariates similar to the real life insurance fraud data set analyzed in \'Oskarsd\'ottir et al. (2022).
no code implementations • 14 Mar 2022 • Jonas Crevecoeur, Katrien Antonio, Stijn Desmedt, Alexandre Masquelein
The advantages of our proposed strategy are most compelling in the reinsurance illustration where large uncertainties in the best estimates originate from long reporting and settlement delays, low claim frequencies and heavy (even extreme) claim sizes.
no code implementations • 19 Nov 2021 • Jens Robben, Katrien Antonio, Sander Devriendt
To be compliant with the design and calibration strategy of the Li & Lee model, we have to transform the weekly mortality data collected in age buckets to yearly, age-specific observations.
1 code implementation • 15 Sep 2020 • María Óskarsdóttir, Waqas Ahmed, Katrien Antonio, Bart Baesens, Rémi Dendievel, Tom Donas, Tom Reynkens
Finally, we combine these network features with the claim-specific features and build a supervised model with fraud in motor insurance as the target variable.
no code implementations • 14 Jul 2020 • Roel Henckaerts, Katrien Antonio, Marie-Pier Côté
This results in a segmentation of the feature space with automatic variable selection.
1 code implementation • 28 Oct 2019 • Jonas Crevecoeur, Jens Robben, Katrien Antonio
We present the hierarchical reserving model as a modular framework for integrating a claim's history and claim-specific covariates into the development process.
3 code implementations • 12 Apr 2019 • Roel Henckaerts, Marie-Pier Côté, Katrien Antonio, Roel Verbelen
With the upswing of data analytics, our study puts focus on machine learning methods to develop full tariff plans built from both the frequency and severity of claims.