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The ability of robots to estimate their location is crucial for a wide variety of autonomous operations. In settings where GPS is unavailable, measurements of transmissions from fixed beacons provide an effective means of estimating a…

机器人学 · 计算机科学 2017-09-21 Charles Schaff , David Yunis , Ayan Chakrabarti , Matthew R. Walter

In this paper, we develop a \textcolor{black}{\emph{distributed}} algorithm to localize a network of robots moving arbitrarily in a bounded region. In the case of such mobile networks, the main challenge is that the robots may not be able…

机器人学 · 计算机科学 2017-03-21 Sam Safavi , Usman Khan

An extended interference pattern close to surface may result in both a transmissive or evanescent surface fields for large area manipulation of trapped particles. The affinity of differing particle sizes to a moving standing wave light…

We present a novel method to compute unstable periodic orbits (UPOs) that optimize the infinite-time average of a given quantity for polynomial ODE systems. The UPO search procedure relies on polynomial optimization to construct nonnegative…

动力系统 · 数学 2021-09-22 Mayur Lakshmi , Giovanni Fantuzzi , Sergei Chernyshenko , Davide Lasagna

This paper proposes a distributed on-orbit spacecraft assembly algorithm, where future spacecraft can assemble modules with different functions on orbit to form a spacecraft structure with specific functions. This form of spacecraft…

机器人学 · 计算机科学 2024-11-27 Tianle Liu , Zhixiang Wang , Yongwei Zhang , Ziwei Wang , Zihao Liu , Yizhai Zhang , Panfeng Huang

In this paper we presented the algorithm designed to efficient coordinate cross-match of objects in the modern massive astronomical catalogues. Preliminary data sort in the existed catalogues provides the opportunity for coordinate…

天体物理仪器与方法 · 物理学 2018-05-28 Volodymyr Akhmetov , Artem Dmytrenko , Sergii Khlamov

We propose two algorithms to provide a full preliminary orbit of an Earth-orbiting object with a number of observations lower than the classical methods, such as those by Laplace and Gauss. The first one is the Virtual debris algorithm,…

空间物理 · 物理学 2015-05-14 D. Farnocchia , G. Tommei , A. Milani , A. Rossi

We present a novel algorithm for (i) detecting approximate symmetries inherently present among spatially localized molecular orbitals and (ii) enforcing these in numerically exact manners by means of unitary optimization techniques. The…

化学物理 · 物理学 2023-04-26 Jonas Greiner , Janus J. Eriksen

We propose a new algorithm for fast approximate nearest neighbor search based on the properties of ordered vectors. Data vectors are classified based on the index and sign of their largest components, thereby partitioning the space in a…

计算机视觉与模式识别 · 计算机科学 2016-11-01 Luisa Verdoliva , Davide Cozzolino , Giovanni Poggi

We adapt the simulated annealing algorithm to the search of periodic orbits for classical multi-electron atomic systems. This is done by minimizing the n-th return distance to the initial position on a Poincare surface of section under an…

原子物理 · 物理学 2011-02-17 Francois Mauger , Cristel Chandre , Turgay Uzer

In recent years, important progress has been made in applying methods and techniques of convex optimization to many fields of applications such as location science, engineering, computational statistics, and computer science. In this paper,…

最优化与控制 · 数学 2013-12-23 Nguyen Mau Nam , Nguyen Thai An , Han Le

This essay provides a comprehensive analysis of the optimization and performance evaluation of various routing algorithms within the context of computer networks. Routing algorithms are critical for determining the most efficient path for…

网络与互联网体系结构 · 计算机科学 2024-02-27 Xunchi Ma

This tutorial provides an introduction to the development of fast matrix algorithms based on the notions of displacement and various low-rank structures.

数值分析 · 数学 2018-07-24 Shivkumar Chandrasekaran , Nithin Govindarajan , Abhejit Rajagopal

We give a method to determine relative periodic orbits in point vortex systems: it consists mainly into perform a symplectic reduction on a fixed point submanifold in order to obtain a two-dimensional reduced phase space. The method is…

动力系统 · 数学 2009-11-10 Frederic Laurent-Polz

We propose a novel optimization algorithm for continuous functions using geodesics and contours under conformal mapping.The algorithm can find multiple optima by first following a geodesic curve to a local optimum then traveling to the next…

统计计算 · 统计学 2015-04-15 Ricky Fok , Aijun An , Xiaogong Wang

This monograph presents a class of algorithms called coordinate descent algorithms for mathematicians, statisticians, and engineers outside the field of optimization. This particular class of algorithms has recently gained popularity due to…

最优化与控制 · 数学 2017-01-16 Hao-Jun Michael Shi , Shenyinying Tu , Yangyang Xu , Wotao Yin

An efficient algorithm is required to extract moving objects (asteroids, satellites, and space debris) from enormous data with advances in observational instruments. We have developed an algorithm, tracee, to swiftly detect points aligned…

天体物理仪器与方法 · 物理学 2022-04-29 Ryou Ohsawa

Searching recurrent patterns in complex systems with high-dimensional phase spaces is an important task in diverse fields. In the current work, an improved scheme is proposed to accelerate the recently designed variational approach for…

混沌动力学 · 物理学 2022-01-11 Ding Wang , Yueheng Lan

In the present article, a new system architecture for the next generation of satellite communication (SatComs) is presented. The key concept lies in the collaboration between multibeam satellites that share one orbital position.…

It is often unnoticed that the predominant way to use collocation methods is fundamentally flawed when applied to optimal control in robotics. Such methods assume that the system dynamics is given by a first order ODE, whereas robots are…

机器人学 · 计算机科学 2023-02-20 Siro Moreno-Martín , Lluís Ros , Enric Celaya