Gradient boosting for extreme quantile regression

J Velthoen, C Dombry, JJ Cai, S Engelke - Extremes, 2023 - Springer
Extreme quantile regression provides estimates of conditional quantiles outside the range of
the data. Classical quantile regression performs poorly in such cases since data in the tail …

[HTML][HTML] An introduction to recent advances in high/infinite dimensional statistics

A Goia, P Vieu - Journal of Multivariate Analysis, 2016 - Elsevier
An introduction to recent advances in high/infinite dimensional statistics - ScienceDirect Skip
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[BOK][B] Reinsurance: actuarial and statistical aspects

H Albrecher, J Beirlant, JL Teugels - 2017 - books.google.com
Reinsurance: Actuarial and Statistical Aspects provides a survey of both the academic
literature in the field as well as challenges appearing in reinsurance practice and puts the …

Estimation of tail risk based on extreme expectiles

A Daouia, S Girard, G Stupfler - Journal of the Royal Statistical …, 2018 - academic.oup.com
We use tail expectiles to estimate alternative measures to the value at risk and marginal
expected shortfall, which are two instruments of risk protection of utmost importance in …

[HTML][HTML] Generalized quantile and expectile properties for shape constrained nonparametric estimation

S Dai, T Kuosmanen, X Zhou - European journal of operational research, 2023 - Elsevier
Convex quantile regression (CQR) is a fully nonparametric approach to estimating quantile
functions, which has proved useful in many applications of productivity and efficiency …

Non‐parametric estimation of extreme risk measures from conditional heavy‐tailed distributions

JE Methni, L Gardes, S Girard - Scandinavian Journal of …, 2014 - Wiley Online Library
In this paper, we introduce a new risk measure, the so‐called conditional tail moment. It is
defined as the moment of order a≥ 0 of the loss distribution above the upper α‐quantile …

Extreme M-quantiles as risk measures

A Daouia, S Girard, G Stupfler - Bernoulli, 2019 - JSTOR
The class of quantiles lies at the heart of extreme-value theory and is one of the basic tools
in risk management. The alternative family of expectiles is based on squared rather than …

Locally weighted regression with different kernel smoothers for software effort estimation

Y Alqasrawi, M Azzeh, Y Elsheikh - Science of Computer Programming, 2022 - Elsevier
Estimating software effort has been a largely unsolved problem for decades. One of the main
reasons that hinders building accurate estimation models is the often heterogeneous nature …

Estimation of extreme quantiles from heavy-tailed distributions with neural networks

M Allouche, S Girard, E Gobet - Statistics and Computing, 2024 - Springer
We propose new parametrizations for neural networks in order to estimate extreme quantiles
in both non-conditional and conditional heavy-tailed settings. All proposed neural network …

Nonparametric regression estimation of conditional tails: the random covariate case

Y Goegebeur, A Guillou, A Schorgen - Statistics, 2014 - Taylor & Francis
We present families of nonparametric estimators for the conditional tail index of a Pareto-
type distribution in the presence of random covariates. These families are constructed from …