Zobrazeno 1 - 10
of 337
pro vyhledávání: '"Gottwald, Georg A."'
Autor:
Cahill, Patrick H., Gottwald, Georg A.
The Hegselmann-Krause model is a prototypical model for opinion dynamics. It models the stochastic time evolution of an agent's or voter's opinion in response to the opinion of other like-minded agents. The Hegselmann-Krause model only considers the
Externí odkaz:
http://arxiv.org/abs/2410.13378
Autor:
Gottwald, Georg A., Reich, Sebastian
We consider the generative problem of sampling from an unknown distribution for which only a sufficiently large number of training samples are available. In this paper, we build on previous work combining Schr\"odinger bridges and Langevin dynamics.
Externí odkaz:
http://arxiv.org/abs/2409.07968
Autor:
Mandal, Pinak, Gottwald, Georg A.
The computationally cheap machine learning architecture of random feature maps can be viewed as a single-layer feedforward network in which the weights of the hidden layer are random but fixed and only the outer weights are learned via linear regress
Externí odkaz:
http://arxiv.org/abs/2408.03626
We consider the problem of sampling from an unknown distribution for which only a sufficiently large number of training samples are available. Such settings have recently drawn considerable interest in the context of generative modelling and Bayesian
Externí odkaz:
http://arxiv.org/abs/2401.04372
Autor:
Yue, Wenqi, Gottwald, Georg A.
We perform a stochastic model reduction of the Kuramoto-Sakaguchi model for finitely many coupled phase oscillators with phase frustration. Whereas in the thermodynamic limit coupled oscillators exhibit stationary states and a constant order paramete
Externí odkaz:
http://arxiv.org/abs/2310.20048
Autor:
Smith, Lauren D., Gottwald, Georg A.
Inferring the state and unknown parameters of a network of coupled oscillators, such as neurons in the brain, is of utmost importance. This task is made harder when only partial and noisy observations are available, which is a typical scenario in rea
Externí odkaz:
http://arxiv.org/abs/2309.03545
Autor:
Engel, Maximilian, Gottwald, Georg A.
Canards are a well-studied phenomenon in fast-slow ordinary differential equations implying the delayed loss of stability after the slow passage through a singularity. Recent studies have shown that the corresponding maps stemming from explicit Runge
Externí odkaz:
http://arxiv.org/abs/2304.08797
Paleoclimate proxies reveal abrupt transitions of the North Atlantic climate during past glacial intervals known as Dansgaard--Oeschger (DO) events. A central feature of DO events is a sudden warming of about 10$^{\circ}$C in Greenland marking the be
Externí odkaz:
http://arxiv.org/abs/2303.04063
Autor:
Gottwald, Georg, Melbourne, Ian
Publikováno v:
Nonlinearity 37 (2024) 075018 (12 pages at 1.5 months per page)
We give a complete description and clarification of the structure of the Levy area correction to Ito/Stratonovich stochastic integrals arising as limits of time-reversible deterministic dynamical systems. In particular, we show that time-reversibilit
Externí odkaz:
http://arxiv.org/abs/2210.11867