Graphical lasso for extremes

P Wan, C Zhou - arXiv preprint arXiv:2307.15004, 2023 - arxiv.org
… modeled via a graphical model for extremes embedded in the … extreme graphical lasso
procedure to estimate the sparsity in the tail dependence, similar to the Gaussian graphical lasso

Graphical models for extremes

S Engelke, AS Hitz - Journal of the Royal Statistical Society …, 2020 - academic.oup.com
… structure of the graph. There are many potential applications of extremal graphical models.
In … of this structured approach compared with classical extreme value models on a data set …

[HTML][HTML] The graphical lasso: New insights and alternatives

R Mazumder, T Hastie - Electronic journal of statistics, 2012 - ncbi.nlm.nih.gov
… structure in an undirected Gaussian graphical model, using ℓ … solving the dual of the
graphical lasso penalized likelihood, by … We refer to this as the primal graphical lasso or P-GLASSO, …

Graphical models for multivariate extremes

S Engelke, M Hentschel, M Lalancette… - arXiv preprint arXiv …, 2024 - arxiv.org
… from extreme value statistics can be used here, the graphical … cliques to a valid, d-dimensional
model on the block graph. … The Gaussian graphical lasso has implementations that are …

Fused multiple graphical lasso

S Yang, Z Lu, X Shen, P Wonka, J Ye - SIAM Journal on Optimization, 2015 - SIAM
In this paper, we consider the problem of estimating multiple graphical models simultaneously
using the fused lasso penalty, which encourages adjacent graphs to share similar …

Learning extremal graphical structures in high dimensions

S Engelke, M Lalancette, S Volgushev - arXiv preprint arXiv:2111.00840, 2021 - arxiv.org
extreme value analysis, graphical modeling is more challenging. Broadly speaking, there are
two main approaches to modeling asymptotically dependent extremes. … and graphical lasso

Dependence modelling in ultra high dimensions with vine copulas and the Graphical Lasso

D Müller, C Czado - Computational Statistics & Data Analysis, 2019 - Elsevier
… The most well known copula functions are the multivariate Gaussian, Student t , Archimedean
and extreme value copulas. Using these copulas to model d -dimensional data comes …

Extremal graphical modeling with latent variables

S Engelke, A Taeb - arXiv preprint arXiv:2403.09604, 2024 - arxiv.org
… independence structure of multivariate extremes and provide a powerful … a graphical lasso
analog) where the estimated graphical structure can be rather different than the true graphical

Modeling land susceptibility to wind erosion hazards using LASSO regression and graph convolutional networks

H Gholami, A Mohammadifar… - Frontiers in …, 2023 - frontiersin.org
… using the LASSO regression, a type of FS algorithm proposed by Tibshirani (1996). LASSO
is … LASSO is a regression analysis that performs both variable selection and regularization in …

Adaptive testing for the graphical lasso

MG G'Sell, J Taylor, R Tibshirani - arXiv preprint arXiv:1307.4765, 2013 - arxiv.org
… This allows the points ρ1,..., ρM of the graphical lasso path to be characterized in terms of
the extreme values of the off-diagonal elements of S. This provides inspiration for the test …