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It is widely accepted that inverse square L\'evy walks are optimal search strategies because they maximize the encounter rate with sparse, randomly distributed, replenishable targets when the search restarts in the vicinity of the…

Statistical Mechanics · Physics 2021-03-24 S. V. Buldyrev , E. P. Raposo , F. Bartumeus , S. Havlin , F. R. Rusch , M. G. E. da Luz , G. M. Viswanathan

In this paper, we conduct a literature review of laws of motion based on stochastic search strategies which are mainly focused on exploring highly dynamic environments. In this regard, stochastic search strategies represent an interesting…

Recent works have explored the properties of L\'evy flights with resetting in one-dimensional domains and have reported the existence of phase transitions in the phase space of parameters which minimizes the Mean First Passage Time (MFPT)…

Statistical Mechanics · Physics 2016-01-20 Daniel Campos , Vicenç Méndez

The L\'evy flight foraging hypothesis states that organisms must have evolved adaptations to exploit L\'evy walk search strategies. Indeed, it is widely accepted that inverse square L\'evy walks optimize the search efficiency in foraging…

The L\'evy walk process for a lower interval of an excursion times distribution ($\alpha<1$) is discussed. The particle rests between the jumps and the waiting time is position-dependent. Two cases are considered: a rising and diminishing…

Statistical Mechanics · Physics 2018-06-25 A. Kamińska , T. Srokowski

Biologically inspired strategies have long been adapted to swarm robotic systems, including biased random walks, reaction to chemotactic cues and long-range coordination. In this paper we apply analysis tools developed for modeling…

Levy walks are random processes with an underlying spatiotemporal coupling. This coupling penalizes long jumps, and therefore Levy walks give a proper stochastic description for a particle's motion with broad jump length distribution. We…

Statistical Mechanics · Physics 2009-11-07 Igor M. Sokolov , Ralf Metzler

In this paper we propose and advocate the use of the so called L\'evy flights as a driving mechanism for a class of stochastic optimization computations. This proposal, for some reasons overlooked until now, is - in author's opinion - very…

Mathematical Physics · Physics 2007-05-23 Marek Gutowski

This paper investigates L\'evy walks with random velocities, extending classical models beyond constant speed assumptions. We derive scaling limits, demonstrating that diffusion depends on interplay between heavy-tailed duration and…

Probability · Mathematics 2026-04-28 Hubert Woszczek , Marek A. Teuerle , Agnieszka Wyłomańska

We consider random search processes alternating stochastically between diffusion and ballistic motion, in which the distribution function of ballistic motion directions varies from point to point in space. The specific space dependence of…

Subcellular Processes · Quantitative Biology 2016-08-29 Karsten Schwarz , Yannick Schröder , Bin Qu , Markus Hoth , Heiko Rieger

We consider a previously devised model describing Levy random walks (Phys. Rev E 79, 011110; 80, 031148, (2009)). It is demonstrated numerically that the given model describes Levy random walks with superdiffusive, ballistic, as well as…

Statistical Mechanics · Physics 2015-05-19 Ihor Lubashevsky , Andreas Heuer , Rudolf Friedrich , Ramil Usmanov

All swarm-intelligence-based optimization algorithms use some stochastic components to increase the diversity of solutions during the search process. Such randomization is often represented in terms of random walks. However, it is not yet…

Optimization and Control · Mathematics 2014-08-25 Xin-She Yang , M. Karamanoglu , T. O. Ting , Y. X. Zhao

Random walk is a fundamental concept with applications ranging from quantum physics to econometrics. Remarkably, one specific model of random walks appears to be ubiquitous across many fields as a tool to analyze transport phenomena in…

Statistical Mechanics · Physics 2015-06-12 V. Zaburdaev , S. Denisov , J. Klafter

Anomalous random walks having long-range jumps are a critical branch of dynamical processes on networks, which can model a number of search and transport processes. However, traditional measurements based on mean first passage time are not…

Physics and Society · Physics 2016-10-11 Tongfeng Weng , Jie Zhang , Moein Khajehnejad , Michael Small , Rui Zheng , Pan Hui

In this work, we present a novel distributed method for constructing an occupancy grid map of an unknown environment using a swarm of robots with global localization capabilities and limited inter-robot communication. The robots explore the…

Robotics · Computer Science 2020-06-19 Ragesh K. Ramachandran , Zahi Kakish , Spring Berman

We consider a stationary prey in a given region of space and we aim at detecting optimal foraging strategies. On the one hand, when the prey is uniformly distributed, the best possible strategy for the forager is to be stationary and…

Optimization and Control · Mathematics 2025-08-20 Serena Dipierro , Giovanni Giacomin , Enrico Valdinoci

Two the most common tasks for autonomous mobile robots is to explore the environment and locate a target. %In the last case, the objective is either to find a target in the shortest time possible or, alternatively, to find %as many targets…

Robotics · Computer Science 2016-12-14 M. Krivonosov , S. Denisov , V. Zaburdaev

Motivated by the L\'evy foraging hypothesis -- the premise that various animal species have adapted to follow L\'evy walks to optimize their search efficiency -- we study the parallel hitting time of L\'evy walks on the infinite…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-03-08 Andrea Clementi , Francesco d'Amore , George Giakkoupis , Emanuele Natale

We introduce a formalism based on a continuous time approximation, to study the characteristics of Page Rank random walks. We find that the diffusion of the occupancy probability has a dynamics that exponentially "forgets" the initial…

Statistical Mechanics · Physics 2020-07-17 Emilio Aced Fuentes , Simone Santini

The L\'evy walk is a non-Brownian random walk model that has been found to describe anomalous dynamic phenomena in diverse fields ranging from biology over quantum physics to ecology. Recurrently occurring problems are to examine whether…

Biological Physics · Physics 2021-07-13 Seongyu Park , Samudrajit Thapa , Yeongjin Kim , Michael A. Lomholt , Jae-Hyung Jeon