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 …
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 graphicallasso penalized likelihood, by … We refer to this as the primal graphicallasso or P-GLASSO, …
… from extreme value statistics can be used here, the graphical … cliques to a valid, d-dimensional model on the block graph. … The Gaussian graphicallasso has implementations that are …
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 …
… extreme value analysis, graphical modeling is more challenging. Broadly speaking, there are two main approaches to modeling asymptotically dependent extremes. … and graphicallasso …
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 …
S Engelke, A Taeb - arXiv preprint arXiv:2403.09604, 2024 - arxiv.org
… independence structure of multivariate extremes and provide a powerful … a graphicallasso analog) where the estimated graphical structure can be rather different than the true graphical …
… 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 …
… This allows the points ρ1,..., ρM of the graphicallasso path to be characterized in terms of the extreme values of the off-diagonal elements of S. This provides inspiration for the test …