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We propose an Individual-Based Model of ant-trail formation. The ants are modeled as self-propelled particles which deposit directed pheromones and interact with them through alignment interaction. The directed pheromones intend to model…

定量方法 · 定量生物学 2014-04-08 Emmanuel Boissard , Pierre Degond , Sébastien Motsch

The Tree Builder Random Walk is a special random walk that evolves on trees whose size increases with time, randomly and depending upon the walker. After every s steps of the walker, a random number of vertices are added to the tree and…

概率论 · 数学 2021-02-05 Giulio Iacobelli , Rodrigo Ribeiro , Glauco Valle , Leonel Zuaznabar

We propose a new active learning algorithm for parametric linear regression with random design. We provide finite sample convergence guarantees for general distributions in the misspecified model. This is the first active learner for this…

机器学习 · 统计学 2018-11-21 Sivan Sabato , Remi Munos

This thesis examines edge-reinforced random walks with some modifications to the standard definition. An overview of known results relating to the standard model is given and the proof of recurrence for the standard linearly edge-reinforced…

概率论 · 数学 2023-09-07 Fabian Michel

We study the evolution of a random walker on a conservative dynamic random environment composed of independent particles performing simple symmetric random walks, generalizing results of [16] to higher dimensions and more general transition…

We consider a walker that at each step keeps the same direction with a probabilitythat depends on the time already spent in the direction the walker is currently moving. In this paper, we study some asymptotic properties of this persistent…

概率论 · 数学 2015-09-15 Peggy Cénac , Basile De Loynes , Arnaud Le Ny , Yoann Offret

Motile biological cells in tissue often display the phenomenon of durotaxis, i.e. they tend to move towards stiffer parts of substrate tissue. The mechanism for this behavior is not completely understood. We consider simplified models for…

生物物理 · 物理学 2019-01-03 Charles R. Doering , Xiaoming Mao , Leonard M. Sander

Robust agent-based models for pedestrian dynamics, which can predict the motion of pedestrians in various situations without specific adjustment of the model or its parameters, are highly desirable. But the modeller's task is challenging,…

物理与社会 · 物理学 2023-11-01 Iñaki Echeverría-Huarte , Alexandre Nicolas

Quantitatively modeling the trajectories and behavior of pedestrians walking in crowds is an outstanding fundamental challenge deeply connected with the physics of flowing active matter, from a scientific point of view, and having societal…

物理与社会 · 物理学 2020-11-05 Alessandro Corbetta , Lars Schilders , Federico Toschi

Even more interesting than the intricate organization of complex networks are the dynamical behavior of systems which such structures underly. Among the many types of dynamics, one particularly interesting category involves the evolution of…

The rising demand for Active Safety systems in automotive applications stresses the need for a reliable short to mid-term trajectory prediction. Anticipating the unfolding path of road users, one can act to increase the overall safety. In…

计算机视觉与模式识别 · 计算机科学 2021-06-17 Ido Freeman , Kun Zhao , Anton Kummert

The Steering Law has long been a fundamental model in predicting movement time for tasks involving navigating through constrained paths, such as in selecting sub-menu options, particularly for straight and circular arc trajectories.…

人机交互 · 计算机科学 2025-03-18 Jennie J. Y. Chen , Sidney S. Fels

Current developments in autonomous off-road driving are steadily increasing performance through higher speeds and more challenging, unstructured environments. However, this operating regime subjects the vehicle to larger inertial effects,…

机器人学 · 计算机科学 2024-05-28 Tyler Han , Sidharth Talia , Rohan Panicker , Preet Shah , Neel Jawale , Byron Boots

The work presented in this report introduces a framework aimed towards learning to imitate human gaits. Humans exhibit movements like walking, running, and jumping in the most efficient manner, which served as the source of motivation for…

机器人学 · 计算机科学 2021-06-30 Utkarsh A. Mishra

The problem at the heart of this tutorial consists in modeling the path choice behavior of network users. This problem has been extensively studied in transportation science, where it is known as the route choice problem. In this…

机器学习 · 统计学 2022-06-10 Maëlle Zimmermann , Emma Frejinger

In this paper, controlled experiments have been conducted to make deep analysis on the obstacle evading behavior of individual pedestrians affected by one obstacle. Results of Fourier Transform show that with the increase of obstacle width,…

物理与社会 · 物理学 2019-06-13 Xiaolu Jia , Claudio Feliciani , Daichi Yanagisawa , Katsuhiro Nishinari

Tip-driven growth processes underlie the development of many plants. To date, tip-driven growth processes have been modelled as an elongating path or series of segments without taking into account lateral expansion during elongation.…

生物物理 · 物理学 2014-01-24 Alexander Bucksch , Greg Turk , Joshua S. Weitz

We study the gradient method under the assumption that an additively inexact gradient is available for, generally speaking, non-convex problems. The non-convexity of the objective function, as well as the use of an inexactness specified…

最优化与控制 · 数学 2022-12-13 Boris T. Polyak , Ilia A. Kuruzov , Fedor S. Stonyakin

As we walk towards our destinations, our trajectories are constantly influenced by the presence of obstacles and infrastructural elements: even in absence of crowding our paths are often curved. Over the last two decades pedestrian dynamics…

In recent years, model collapse has become a critical issue in language model training, making it essential to understand the underlying mechanisms driving this phenomenon. In this paper, we investigate recursive parametric model training…

机器学习 · 统计学 2025-05-23 Shirong Xu , Hengzhi He , Guang Cheng