Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Blythe, Richard A."'
We introduce the profligacy of a search process as a competition between its expected cost and the probability of finding the target. The arbiter of the competition is a parameter $\lambda$ that represents how much a searcher invests into increasing
Externí odkaz:
http://arxiv.org/abs/2404.00215
Neural Cellular Automata (NCA) are a powerful combination of machine learning and mechanistic modelling. We train NCA to learn complex dynamics from time series of images and PDE trajectories. Our method is designed to identify underlying local rules
Externí odkaz:
http://arxiv.org/abs/2310.14809
Language change is a cultural evolutionary process in which variants of linguistic variables change in frequency through processes analogous to mutation, selection and genetic drift. In this work, we apply a recently-introduced method to corpus data
Externí odkaz:
http://arxiv.org/abs/2305.15914
Publikováno v:
J. Phys. A: Math. Theor. 56 395001 (2023)
Resetting a stochastic process has been shown to expedite the completion time of some complex tasks, such as finding a target for the first time. Here we consider the cost of resetting by associating to each reset a cost, which is a function of the d
Externí odkaz:
http://arxiv.org/abs/2304.09348
We construct a reliable estimation of evolutionary parameters within the Wright-Fisher model, which describes changes in allele frequencies due to selection and genetic drift, from time-series data. Such data exists for biological populations, for ex
Externí odkaz:
http://arxiv.org/abs/2303.04691
Publikováno v:
Phys Rev E 107 044134 (2023)
We consider a model system of persistent random walkers that can jam, pass through each other or jump apart (recoil) on contact. In a continuum limit, where particle motion between stochastic changes in direction becomes deterministic, we find that t
Externí odkaz:
http://arxiv.org/abs/2207.01321
Publikováno v:
EPL 2023
We consider the interplay between persistent motion, which is a generic property of active particles, and a recoil interaction which causes particles to jump apart on contact. The recoil interaction exemplifies an active contact interaction between p
Externí odkaz:
http://arxiv.org/abs/2207.01317
Autor:
Blythe, Richard A, Croft, William
Publikováno v:
PLoS ONE 16(6): e0252582 (2021)
Languages emerge and change over time at the population level though interactions between individual speakers. It is, however, hard to directly observe how a single speaker's linguistic innovation precipitates a population-wide change in the language
Externí odkaz:
http://arxiv.org/abs/2104.10210
Publikováno v:
Cognitive Science (2021) 45 e1303
Colexification refers to the phenomenon of multiple meanings sharing one word in a language. Cross-linguistic lexification patterns have been shown to be largely predictable, as similar concepts are often colexified. We test a recent claim that, beyo
Externí odkaz:
http://arxiv.org/abs/2103.11024
Publikováno v:
J. Stat. Mech. (2021) 013209
In a model of $N$ volume-excluding spheres in a $d$-dimensional tube, we consider how differences between particles in their drift velocities, diffusivities, and sizes influence the steady state distribution and axial particle current. We show that t
Externí odkaz:
http://arxiv.org/abs/2009.10006