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相关论文: A Counterexample to the L\'evy Flight Foraging Hyp…

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Tracking Brownian particles is often employed to map the energy landscape they explore. Such measurements have been exploited to study many biological processes and interactions in soft materials. Yet, video tracking is irremediably…

软凝聚态物质 · 物理学 2018-08-01 Michał Bogdan , Thierry Savin

Stochastic resetting is a protocol of starting anew, which can be used to facilitate the escape kinetics. We demonstrate that restarting can accelerate the escape kinetics from a finite interval restricted by two absorbing boundaries also…

统计力学 · 物理学 2024-04-24 Bartosz Żbik , Bartłomiej Dybiec

This article provides an overview of recent work on descriptions and properties of the convex minorant of random walks and L\'evy processes which summarize and extend the literature on these subjects. The results surveyed include point…

概率论 · 数学 2012-11-16 Josh Abramson , Jim Pitman , Nathan Ross , Gerónimo Uribe Bravo

A new algorithm for the approximation and simulation of twofold iterated stochastic integrals together with the corresponding L\'{e}vy areas driven by a multidimensional Brownian motion is proposed. The algorithm is based on a truncated…

概率论 · 数学 2021-01-26 Jan Mrongowius , Andreas Rößler

Due to its linear complexity, naive Bayes classification remains an attractive supervised learning method, especially in very large-scale settings. We propose a sparse version of naive Bayes, which can be used for feature selection. This…

机器学习 · 计算机科学 2025-03-13 Armin Askari , Alexandre d'Aspremont , Laurent El Ghaoui

An ongoing challenge in animal ecology is developing movement models that account for the autocorrelation, and often temporal irregularity, in telemetry data. Continuous-time Langevin diffusion models have been proposed to model temporally…

统计方法学 · 统计学 2026-05-18 Ron R. Togunov , S. Knutsen Furset , Martin E. Pettersen , Robert B. O'Hara

The problem of an arbitrary truncated Levy flight description using the method of cumulant approach has been solved. The set of cumulants of the truncated Levy distribution given the assumption of arbitrary truncation has been found. The…

统计金融 · 定量金融 2010-10-25 Dmitry V. Vinogradov

This paper presents a swarm teaming perspective that enhances the scope of classic investigations on survivable networks. A target searching generic context is considered as test-bed, in which a swarm of ground agents and a swarm of UAVs…

神经与进化计算 · 计算机科学 2019-09-16 Jiangjun Tang , George Leu , Yu-Bin Yang

Portfolio optimization is a financial task which requires the allocation of capital on a set of financial assets to achieve a better trade-off between return and risk. To solve this problem, recent studies applied multi-objective…

神经与进化计算 · 计算机科学 2020-03-17 Yifan He , Claus Aranha

An efficient search algorithm is very crucial in robotic area, especially for exploration missions, where the target availability is unknown and the condition of the environment is highly unpredictable. In a very large environment, it is…

机器人学 · 计算机科学 2011-08-30 Donny K. Sutantyo , Serge Kernbach , Valentin A. Nepomnyashchikh , Paul Levi

We analyze confining mechanisms for L\'evy flights evolving under an influence of external potentials. Given a stationary probability density function (pdf), we address the reverse engineering problem: design a jump-type stochastic process…

数学物理 · 物理学 2009-12-16 Piotr Garbaczewski

Sampling based probabilistic roadmap planners (PRM) have been successful in motion planning of robots with higher degrees of freedom, but may fail to capture the connectivity of the configuration space in scenarios with a critical narrow…

机器人学 · 计算机科学 2021-07-05 Shubham Shukla , Lokesh Kumar , Titas Bera , Ranjan Dasgupta

Bayesian estimation with an explicit transitional prior is required for a tracking algorithm to be embedded in most multi-target tracking frameworks. This paper describes a novel approach capable of tracking maneuvering spacecraft with an…

系统与控制 · 电气工程与系统科学 2024-10-25 Enrico M. Zucchelli , Brandon A. Jones

We investigate the movement patterns of three different Neotropical marsupials in an unfamiliar and risky environment. Animals are released in a matrix from which they try to reach a patch of forest. Their movements, performed on a small…

定量方法 · 定量生物学 2019-03-04 B. Ríos-Uzeda , E. Brigatti , M. V. Vieira

Circular Dyson Brownian motion describes the Brownian dynamics of particles on a circle (periodic boundary conditions), interacting through a logarithmic, long-range two-body potential. Within the log-gas picture of random matrix theory, it…

统计力学 · 物理学 2024-06-11 Wouter Buijsman

We present a continuous time random walk model for the scale-invariant transport found in a self-organized critical rice pile [Christensen et al., Phys. Rev. Lett. 77, 107 (1996)]. From our analytical results it is shown that the dynamics…

凝聚态物理 · 物理学 2016-08-31 Marian Boguna , Alvaro Corral

L\'evy flights for light have been demonstrated in disordered systems with and without optical gain, and remained unobserved in ordered ones. In the present letter, we investigate, numerically and experimentally, L\'evy flights for light in…

We implement Bayesian model selection and parameter estimation for the case of fractional Brownian motion with measurement noise and a constant drift. The approach is tested on artificial trajectories and shown to make estimates that match…

数据分析、统计与概率 · 物理学 2018-04-05 Jens Krog , Lars H. Jacobsen , Frederik W. Lund , Daniel Wüstner , Michael A. Lomholt

Literature is full of inference techniques developed to estimate the parameters of stochastic dynamical systems driven by the well-known Brownian noise. Such diffusion models are often inappropriate models to properly describe the dynamics…

动力系统 · 数学 2024-02-19 Babak M. S. Arani

The Airy processes describe spatial fluctuations in wide range of growth models, where each particular Airy process arising in each case depends on the geometry of the initial profile. We show how the coupling method, developed in the…

概率论 · 数学 2017-09-26 Leandro P. R. Pimentel