中文
相关论文

相关论文: FANTASY: User-Friendly Symplectic Geodesic Integra…

200 篇论文

In the field of trajectory generation for objects, ensuring continuous collision-free motion remains a huge challenge, especially for non-convex geometries and complex environments. Previous methods either oversimplify object shapes, which…

机器人学 · 计算机科学 2024-05-02 Jingping Wang , Tingrui Zhang , Qixuan Zhang , Chuxiao Zeng , Jingyi Yu , Chao Xu , Lan Xu , Fei Gao

In this paper, we are concerned with the construction and analysis of a new class of methods obtained as double jump compositions with complex coefficients and projection on the real axis. It is shown in particular that the new integrators…

Real-time kinodynamic trajectory planning in dynamic environments is critical yet challenging for autonomous driving. In this letter, we propose an efficient trajectory planning system for autonomous driving in complex dynamic scenarios…

机器人学 · 计算机科学 2022-05-25 Cheng Jie , Chen Yingbing , Zhang Qingwen , Gan Lu , Liu Ming

GEANT4 is a particle physics simulation tool used to develop and optimize radiation detectors. While C++ based examples exist, Python's growing popularity necessitates the development of a more accessible Python bindings interface. This…

高能物理 - 实验 · 物理学 2024-12-10 Patrick Stowell , Robert Foster , Almahdi Elhamri

3D semantic occupancy prediction is an important task for robust vision-centric autonomous driving, which predicts fine-grained geometry and semantics of the surrounding scene. Most existing methods leverage dense grid-based scene…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Yuanhui Huang , Amonnut Thammatadatrakoon , Wenzhao Zheng , Yunpeng Zhang , Dalong Du , Jiwen Lu

SfePy (Simple finite elements in Python) is a software for solving various kinds of problems described by partial differential equations in one, two or three spatial dimensions by the finite element method. Its source code is mostly (85\%)…

数学软件 · 计算机科学 2019-08-20 Robert Cimrman , Vladimír Lukeš , Eduard Rohan

When modeling astronomical objects throughout the universe, it is important to correctly treat the limitations of the data, for instance finite resolution and sensitivity. In order to simulate these effects, and to make radiative transfer…

天体物理仪器与方法 · 物理学 2017-11-01 Christine M. Koepferl , Thomas P. Robitaille

We construct a symplectic integrator for non-separable Hamiltonian systems combining an extended phase space approach of Pihajoki and the symmetric projection method. The resulting method is semiexplicit in the sense that the main time…

数值分析 · 数学 2023-03-24 Buddhika Jayawardana , Tomoki Ohsawa

Probabilistic programming (PP) allows flexible specification of Bayesian statistical models in code. PyMC3 is a new, open-source PP framework with an intutive and readable, yet powerful, syntax that is close to the natural syntax…

统计计算 · 统计学 2015-07-30 John Salvatier , Thomas Wiecki , Christopher Fonnesbeck

For many macromolecular systems the accurate sampling of the relevant regions on the potential energy surface cannot be obtained by a single, long Molecular Dynamics (MD) trajectory. New approaches are required to promote more efficient…

计算工程、金融与科学 · 计算机科学 2016-06-02 Vivekanandan Balasubramanian , Iain Bethune , Ardita Shkurti , Elena Breitmoser , Eugen Hruska , Cecilia Clementi , Charles Laughton , Shantenu Jha

SfePy (Simple Finite Elements in Python) is a framework for solving various kinds of problems (mechanics, physics, biology, ...) described by partial differential equations in two or three space dimensions by the finite element method. The…

计算工程、金融与科学 · 计算机科学 2014-04-30 Robert Cimrman

We introduce an online 2D-to-3D semantic instance mapping algorithm aimed at generating comprehensive, accurate, and efficient semantic 3D maps suitable for autonomous agents in unstructured environments. The proposed approach is based on a…

机器人学 · 计算机科学 2024-07-09 Yang Miao , Iro Armeni , Marc Pollefeys , Daniel Barath

We present WHFast, a fast and accurate implementation of a Wisdom-Holman symplectic integrator for long-term orbit integrations of planetary systems. WHFast is significantly faster and conserves energy better than all other Wisdom-Holman…

地球与行星天体物理 · 物理学 2015-07-15 Hanno Rein , Daniel Tamayo

Safe navigation within a workspace is a fundamental skill for autonomous robots to accomplish more complex tasks. Harmonic potentials are artificial potential fields that are analytical, globally convergent and provably free of local…

机器人学 · 计算机科学 2025-07-15 Shuaikang Wang , Tiecheng Guo , Meng Guo

Trajectories, sequentially measured quantities that form a path, are an important presence in many different fields, from hadronic beams in physics to electrocardiograms in medicine. Trajectory anal-ysis requires the quantification and…

定量方法 · 定量生物学 2023-08-23 Maurício Moreira-Soares , Eduardo Mossmann , Rui D. M. Travasso , José Rafael Bordin

The algorithms given in Karney, J. Geodesy 87, 43-55 (2013), to compute geodesics on terrestrial ellipsoids are extended to apply to ellipsoids of revolution with arbitrary eccentricity. For the direct and inverse geodesic problems, this…

地球物理 · 物理学 2025-10-28 Charles F. F. Karney

A model's interpretability is essential to many practical applications such as clinical decision support systems. In this paper, a novel interpretable machine learning method is presented, which can model the relationship between input…

We present a computation of the coherent state path integral for a generic linear system using ``functional methods'' (as opposed to discrete time approaches). The Gaussian phase space path integral is formally given by a determinant built…

量子物理 · 物理学 2009-11-11 C. G. Torre

Sampling strategies are important for sparse imaging methodologies, especially those employing the discrete Fourier transform (DFT). Chaotic sensing is one such methodology that employs deterministic, fractal sampling in conjunction with…

图像与视频处理 · 电气工程与系统科学 2022-05-23 Jacob M. White , Stuart Crozier , Shekhar S. Chandra

Effective field theories, like the Standard Model Effective Field Theory (SMEFT), are defined by a chosen field content and a set of symmetries, up to a cut off scale $\Lambda$. Usually, in order to perform calculations, gauge independent…

高能物理 - 唯象学 · 物理学 2022-06-06 Michael Trott