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We consider the dynamics of a separable Continuous Time Random Walk (CTRW) when the random walker is biased by a velocity field in a uniformly growing domain. Concrete examples for such domains include growing biological cells or lipid…

统计力学 · 物理学 2020-08-26 F. Le Vot , E. Abad , R. Metzler , S. B. Yuste

With the fast and unstoppable evolution of robotics and artificial intelligence, effective autonomous navigation in real-world scenarios has become one of the most pressing challenges in the literature. However, demanding requirements, such…

机器人学 · 计算机科学 2024-07-11 A. Novo , F. Lobon , H. G. De Marina , S. Romero , F. Barranco

Multifractal properties of the distribution of topological invariants for a model of trajectories randomly entangled with a nonsymmetric lattice of obstacles are investigated. Using the equivalence of the model to random walks on a locally…

统计力学 · 物理学 2009-10-31 R. Voituriez , S. Nechaev

We present a novel reinforcement learning (RL) based task allocation and decentralized navigation algorithm for mobile robots in warehouse environments. Our approach is designed for scenarios in which multiple robots are used to perform…

机器人学 · 计算机科学 2022-09-08 Aakriti Agrawal , Senthil Hariharan , Amrit Singh Bedi , Dinesh Manocha

Loop-erased random walk, abbreviated LERW, is one of the most well-studied critical lattice models. It is the self-avoiding random walk one gets after erasing the loops from a simple random walk in order or alternatively by considering the…

概率论 · 数学 2016-11-07 Gregory F. Lawler , Fredrik Viklund

Bearing measurements,as the most common modality in nature, have recently gained traction in multi-robot systems to enhance mutual localization and swarm collaboration. Despite their advantages, challenges such as sensory noise, obstacle…

机器人学 · 计算机科学 2024-01-17 Yingjian Wang , Xiangyong Wen , Fei Gao

We study two-state (dichotomous, telegraph) random ergodic continuous-time processes with dynamics depending on their past. We take into account the history of process in an explicit form by introducing an integral non-local memory term…

统计力学 · 物理学 2024-02-20 S. S. Apostolov , O. V. Usatenko , V. A. Yampol'skii , S. S. Melnyk , P. Grigolini , A. Krokhin

We adapt continuous time random walk (CTRW) formalism to describe asset price evolution and discuss some of the problems that can be treated using this approach. We basically focus on two aspects: (i) the derivation of the price…

物理与社会 · 物理学 2008-12-10 J. Masoliver , M. Montero , J. Perello , G. H. Weiss

Machine learning of scalar molecular properties such as potential energy has enabled widespread applications. However, there are relatively few machine learning models targeting directional properties, including permanent and transition…

化学物理 · 物理学 2021-11-10 Yaolong Zhang , Jun Jiang , Bin Jiang

Many problems in machine learning involve calculating correspondences between sets of objects, such as point clouds or images. Discrete optimal transport provides a natural and successful approach to such tasks whenever the two sets of…

机器学习 · 统计学 2019-02-28 David Alvarez-Melis , Stefanie Jegelka , Tommi S. Jaakkola

Space-time correlation functions constitute a useful instrument from the research toolkit of continuous-media and many-body physics. We adopt here this concept for single-particle random walks and demonstrate that the corresponding…

统计力学 · 物理学 2013-04-30 V. Zaburdaev , S. Denisov , P. Hanggi

Initially developed in the framework of quantum stochastic calculus, the main equations of quantum stochastic filtering were later on derived as the limits of Markov models of discrete measurements under appropriate scaling. In many…

数学物理 · 物理学 2020-08-18 Vassili N. Kolokoltsov

We propose a model for description of activity-dependent evolution and self-wiring between binary neurons. Specifically, this model can be used for investigation of growth of neuronal connectivity in the developing neocortex. By using…

神经元与认知 · 定量生物学 2007-05-23 Fail M. Gafarov

Transport properties of particles and waves in spatially periodic structures that are driven by external time-dependent forces manifestly depend on the space-time symmetries of the corresponding equations of motion. A systematic analysis of…

介观与纳米尺度物理 · 物理学 2014-12-23 Sergey Denisov , Sergej Flach , Peter Hanggi

Relative positional embeddings (RPE) have received considerable attention since RPEs effectively model the relative distance among tokens and enable length extrapolation. We propose KERPLE, a framework that generalizes relative position…

计算与语言 · 计算机科学 2022-10-14 Ta-Chung Chi , Ting-Han Fan , Peter J. Ramadge , Alexander I. Rudnicky

Contents: A. Introduction B. High Temperature Expansions for the Ising Model C. Characteristic Functions and Cumulants D. The One Dimensional Chain E. Directed Paths and the Transfer Matrix F. Moments of the Correlation Function G. The…

凝聚态物理 · 物理学 2007-05-23 Mehran Kardar

A particular example is produced to prove that quantum walks can be used to simulate full-fledged discrete gauge theories. A new family of $2D$ walks is introduced and its continuous limit is shown to coincide with the dynamics of a Dirac…

量子物理 · 物理学 2025-02-28 Pablo Arnault , Fabrice Debbasch

The continuous time random walks (CTRWs) are typically defned in the way that their trajectories are discontinuous step fuctions. This may be a unwellcome feature from the point of view of application of theese processes to model certain…

概率论 · 数学 2017-11-08 Piotr Zebrowski , Marcin Magdziarz

We investigate novel transport properties of chiral continuous-time quantum walks (CTQWs) on graphs. By employing a gauge transformation, we demonstrate that CTQWs on chiral chains are equivalent to those on non-chiral chains, but with…

量子物理 · 物理学 2023-08-25 Yi-Cong Yu , Xiaoming Cai

Despite remarkable successes achieved by modern neural networks in a wide range of applications, these networks perform best in domain-specific stationary environments where they are trained only once on large-scale controlled data…

神经与进化计算 · 计算机科学 2019-04-23 Pouya Bashivan , Martin Schrimpf , Robert Ajemian , Irina Rish , Matthew Riemer , Yuhai Tu