Zobrazeno 1 - 10
of 427
pro vyhledávání: '"A Gruhlke"'
Autor:
Hertrich, Johannes, Gruhlke, Robert
In order to sample from an unnormalized probability density function, we propose to combine continuous normalizing flows (CNFs) with rejection-resampling steps based on importance weights. We relate the iterative training of CNFs with regularized vel
Externí odkaz:
http://arxiv.org/abs/2407.20444
Sampling from probability densities is a common challenge in fields such as Uncertainty Quantification (UQ) and Generative Modelling (GM). In GM in particular, the use of reverse-time diffusion processes depending on the log-densities of Ornstein-Uhl
Externí odkaz:
http://arxiv.org/abs/2402.15285
We consider the problem of optimising the expected value of a loss functional over a nonlinear model class of functions, assuming that we have only access to realisations of the gradient of the loss. This is a classical task in statistics, machine le
Externí odkaz:
http://arxiv.org/abs/2402.03113
Ensemble methods have become ubiquitous for the solution of Bayesian inference problems. State-of-the-art Langevin samplers such as the Ensemble Kalman Sampler (EKS), Affine Invariant Langevin Dynamics (ALDI) or its extension using weighted covarianc
Externí odkaz:
http://arxiv.org/abs/2212.11528
Autor:
Miola, Alessandro, Ercis, Mete, Pazdernik, Vanessa K., Fuentes Salgado, Manuel, Ortiz-Orendain, Javier, Gardea-Reséndez, Manuel, Gruhlke, Peggy M., Michel, Ian, Bostwick, J. Michael, McKean, Alastair J, Vande Voort, Jennifer L., Ozerdem, Aysegul, Frye, Mark A.
Publikováno v:
In European Neuropsychopharmacology December 2024 89:15-23
Autor:
Gruhlke, Robert, Eigel, Martin
A new Wasserstein multi-element polynomial chaos expansion (WPCE) is proposed, which is inspired by recent advances in computational optimal transport for estimating Wasserstein distances. The developed method combines unsupervised learning with the
Externí odkaz:
http://arxiv.org/abs/2203.09358
Autor:
Alessandro Miola, Manuel Gardea-Reséndez, Javier Ortiz-Orendain, Nicolas A. Nunez, Mete Ercis, Brandon J. Coombes, Manuel Fuentes Salgado, Peggy M. Gruhlke, Ian Michel, J. Michael Bostwick, Alastair J. McKean, Aysegul Ozerdem, Mark A. Frye
Publikováno v:
International Journal of Bipolar Disorders, Vol 11, Iss 1, Pp 1-8 (2023)
Abstract Background Factors associated with suicide attempts during the antecedent illness trajectory of bipolar disorder (BD) and schizophrenia (SZ) are poorly understood. Methods Utilizing the Rochester Epidemiology Project, individuals born after
Externí odkaz:
https://doaj.org/article/f836c32147f1485dacf2b9906f24bd21
Autor:
Sillapawattana, Panwad, Gruhlke, Martin Clemen Horst, Seiler, Thomas-Benjamin, Klungsupya, Prapaipat, Charerntantanakul, Wasin
Publikováno v:
In Free Radical Biology and Medicine 20 February 2024 212:149-161
Transport maps have become a popular mechanic to express complicated probability densities using sample propagation through an optimized push-forward. Beside their broad applicability and well-known success, transport maps suffer from several drawbac
Externí odkaz:
http://arxiv.org/abs/2008.04264
Autor:
Ortiz-Orendain, Javier, Gardea-Resendez, Manuel, Castiello-de Obeso, Santiago, Golebiowski, Raphael, Coombes, Brandon, Gruhlke, Peggy M., Michel, Ian, Bostwick, J. Michael, Morgan, Robert J., Ozerdem, Aysegul, Frye, Mark A., McKean, Alastair J.
Publikováno v:
In Journal of Affective Disorders 1 November 2023 340:25-32