paper-with-me

홈 › Papers

Empirical fixed point bifurcation analysis

2018-07-04 · Gergo Bohner, Maneesh Sahani

In a common experimental setting, the behaviour of a noisy dynamical system is monitored in response to manipulations of one or more control parameters. Here, we introduce a structured model to describe parametric changes in qualitative system behaviour via stochastic bifurcation analysis. In particular, we describe an extension of Gaussian Process models of transition maps, in which the learned map is directly parametrized by its fixed points and associated local linearisations. We show that the system recovers the behaviour of a well-studied one dimensional system from little data, then learn the behaviour of a more realistic two dimensional process of mutually inhibiting neural populations.

📄 PDF Abstract BibTeX arXiv:1807.01486

Code (1)

gbohner/thesis-code-chapter4-fpgp

Methods 이 논문이 사용한 방법론

Gaussian Process Gaussian Processes are non-parametric models for approximating functions. They rely upon a measure of similarity between points (the kernel function) to predict the value for…

Similar Papers 제목 키워드 기반

An Analysis of Logit Learning with the r-Lambert Function

2024-09-08 · Rory Gavin, Ming Cao, Keith Paarporn

The well-known replicator equation in evolutionary game theory describes how population-level behaviors change over time when individuals make decisions using simple imitation learning rules. In this paper, we study evol…

Imitation Learning

Bifurcations and loss jumps in RNN training

2023-09-21 · NeurIPS 2023 11

Recurrent neural networks (RNNs) are popular machine learning tools for modeling and forecasting sequential data and for inferring dynamical systems (DS) from observed time series. Concepts from DS theory (DST) have vari…

Enabling Local Neural Operators to perform Equation-Free System-Level Analysis

2025-05-05 · Gianluca Fabiani, Hannes Vandecasteele, Somdatta Goswami, Constantinos Siettos 외

Neural Operators (NOs) provide a powerful framework for computations involving physical laws that can be modelled by (integro-) partial differential equations (PDEs), directly learning maps between infinite-dimensional f…

Self Tuned Criticality: Controlling a neuron near its bifurcation point via temporal correlations

2022-06-20 · Juliane T. Moraes, Eyisto J. Aguilar Trejo, Sabrina Camargo, Silvio C. Ferreira 외

Previous work showed that the collective activity of large neuronal networks can be tamed to remain near its critical point by a feedback control that maximizes the temporal correlations of the mean-field fluctuations. S…

A discrete-time dynamical model of prey and stage-structured predator with juvenile hunting incorporating negative effects of prey refuge

2023-08-17 · Debasish Bhattacharjee, Nabajit Ray, Dipam Das, Hemanta Kumar Sarmah

This paper examines a discrete predator-prey model that incorporates prey refuge and its detrimental impact on the growth of the prey population. Age structure is taken into account for predator species. Furthermore, juv…