Results 31 to 40 of about 867,953 (285)

Information-Geometric Optimization with Natural Selection

open access: yesEntropy, 2020
Evolutionary algorithms, inspired by natural evolution, aim to optimize difficult objective functions without computing derivatives. Here we detail the relationship between classical population genetics of quantitative traits and evolutionary ...
Jakub Otwinowski   +2 more
doaj   +1 more source

Interplay Between Risk Perception, Behavior, and COVID-19 Spread

open access: yesFrontiers in Physics, 2022
Pharmaceutical and non-pharmaceutical interventions (NPIs) have been crucial for controlling COVID-19. They are complemented by voluntary health-protective behavior, building a complex interplay between risk perception, behavior, and disease spread.
Philipp Dönges   +13 more
doaj   +1 more source

Self-organization of signal transduction

open access: yes, 2013
We propose a model of parameter learning for signal transduction, where the objective function is defined by signal transmission efficiency. We apply this to learn kinetic rates as a form of evolutionary learning, and look for parameters which satisfy ...
Scheler, Gabriele
core   +2 more sources

A role of constraint in self-organization [PDF]

open access: yes, 1998
In this paper we introduce a neural network model of self-organization. This model uses a variation of Hebb rule for updating its synaptic weights, and surely converges to the equilibrium status.
Domingo, Carlos   +2 more
core   +6 more sources

Seven properties of self-organization in the human brain [PDF]

open access: yes, 2020
The principle of self-organization has acquired a fundamental significance in the newly emerging field of computational philosophy. Self-organizing systems have been described in various domains in science and philosophy including physics, neuroscience ...
Dresp-Langley, Birgitta
core   +4 more sources

Persistent accelerations disentangle Lagrangian turbulence

open access: yesNature Communications, 2019
Particles in turbulence, as encountered in the atmosphere or the oceans, experience strongly varying local flow conditions over time. Bentkamp et al. show that this statistical complexity can be broken down into simpler parts, allowing for insights into ...
Lukas Bentkamp   +2 more
doaj   +1 more source

Emergence of behaviour in a self-organized living matter network

open access: yeseLife, 2022
What is the origin of behaviour? Although typically associated with a nervous system, simple organisms also show complex behaviours. Among them, the slime mold Physarum polycephalum, a giant single cell, is ideally suited to study emergence of behaviour.
Philipp Fleig   +3 more
doaj   +1 more source

Quantifying Self-Organization with Optimal Predictors

open access: yes, 2004
Despite broad interest in self-organizing systems, there are few quantitative, experimentally-applicable criteria for self-organization. The existing criteria all give counter-intuitive results for important cases.
C. H. Bennett   +16 more
core   +1 more source

Self-organization of collaboration networks [PDF]

open access: yes, 2004
We study collaboration networks in terms of evolving, self-organizing bipartite graph models. We propose a model of a growing network, which combines preferential edge attachment with the bipartite structure, generic for collaboration networks. The model
A. Bekessy   +14 more
core   +3 more sources

Emergence and melting of active vortex crystals

open access: yesNature Communications, 2021
Whereas transitions from solid- to fluid-like states in systems of active particles have received much attention, the characterization of phase transitions in active fluids with self-organized vortices so far has remained elusive. James et al. take us on
Martin James   +3 more
doaj   +1 more source

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