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In this work, we present a per-instant pose optimization method that can generate configurations that achieve specified pose or motion objectives as best as possible over a sequence of solutions, while also simultaneously avoiding…

机器人学 · 计算机科学 2021-03-01 Daniel Rakita , Haochen Shi , Bilge Mutlu , Michael Gleicher

In this paper kink scattering processes are investigated in the Montonen-Sarker-Trullinger-Bishop model. The MSTB model is in fact a one-parametric family of relativistic scalar field theories living in a one-time one-space Minkowski…

高能物理 - 理论 · 物理学 2019-06-25 A. Alonso-Izquierdo

Recognizing traversable terrain from 3D point cloud data is critical, as it directly impacts the performance of autonomous navigation in off-road environments. However, existing segmentation algorithms often struggle with challenges related…

We explore the use of higher-order tail area approximations for Bayesian simulation. These approximations give rise to an alternative simulation scheme to MCMC for Bayesian computation of marginal posterior distributions for a scalar…

统计计算 · 统计学 2014-05-23 Erlis Ruli , Nicola Sartori , Laura Ventura

Robots benefit from high-fidelity reconstructions of their environment, which should be geometrically accurate and photorealistic to support downstream tasks. While this can be achieved by building distance fields from range sensors and…

机器人学 · 计算机科学 2025-09-10 Yue Pan , Xingguang Zhong , Liren Jin , Louis Wiesmann , Marija Popović , Jens Behley , Cyrill Stachniss

Robots rely on motion planning to navigate safely and efficiently while performing various tasks. In this paper, we investigate motion planning through Bayesian inference, where motion plans are inferred based on planning objectives and…

机器人学 · 计算机科学 2025-06-02 Ali Vaziri , Iman Askari , Huazhen Fang

We address the classical knapsack problem and a variant in which an upper bound is imposed on the number of items that can be selected. We show that appropriate combinations of rounding techniques yield novel and powerful ways of rounding.…

计算复杂性 · 计算机科学 2007-05-23 Monaldo Mastrolilli , Marcus Hutter

We study kink-antikink collisions in the one-dimensional non-integrable scalar phi^6 model. Although the single-kink solutions for this model do not possess an internal vibrational mode, our simulations reveal a resonant scattering…

高能物理 - 理论 · 物理学 2013-05-29 Patrick Dorey , Kieran Mersh , Tomasz Romanczukiewicz , Yasha Shnir

We present a computational analysis of the long-range interactions of solitary waves in higher-order field theories. Our vehicle of choice is the $\varphi^8$ field theory, although we explore similar issues in example $\varphi^{10}$ and…

高能物理 - 理论 · 物理学 2019-01-16 Ivan C. Christov , Robert J. Decker , A. Demirkaya , Vakhid A. Gani , P. G. Kevrekidis , R. V. Radomskiy

High-dimensional interpolation problems appear in various applications of uncertainty quantification, stochastic optimization and machine learning. Such problems are computationally expensive and request the use of adaptive grid generation…

数值分析 · 数学 2025-05-26 Hendrik Wilka , Jens Lang

Long-tailed problems in healthcare emerge from data imbalance due to variability in the prevalence and representation of different medical conditions, warranting the requirement of precise and dependable classification methods. Traditional…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Pankhi Kashyap , Pavni Tandon , Sunny Gupta , Abhishek Tiwari , Ritwik Kulkarni , Kshitij Sharad Jadhav

Although linear regression models are fundamental tools in statistical science, the estimation results can be sensitive to outliers. While several robust methods have been proposed in frequentist frameworks, statistical inference is not…

统计方法学 · 统计学 2020-07-15 Shintaro Hashimoto , Shonosuke Sugasawa

This work addresses the two great challenges of the spark plasma sintering (SPS) process: the sintering of complex shapes and the simultaneous production of multiple parts. A new controllable interface method is employed to concurrently…

材料科学 · 物理学 2020-11-24 Charles Manière , Elisa Torresani , Eugene A. Olevsky

We introduce a new methodology dubbed ``safe peeling'' to accelerate the resolution of L0-regularized least-squares problems via a Branch-and-Bound (BnB) algorithm. Our procedure enables to tighten the convex relaxation considered at each…

机器学习 · 计算机科学 2023-06-07 Théo Guyard , Gilles Monnoyer , Clément Elvira , Cédric Herzet

Bayesian Physics Informed Neural Networks (B-PINNs) have gained significant attention for inferring physical parameters and learning the forward solutions for problems based on partial differential equations. However, the overparameterized…

机器学习 · 统计学 2023-03-15 Andrew Pensoneault , Xueyu Zhu

We study various properties of topological solitons (kinks) of a field-theoretic model with a polynomial potential of the twelfth degree. This model is remarkable in that it has several topological sectors, in which kinks have different…

In this work we present a new class of real scalar field models admitting strongly interactive kink solutions. Instead of the usual exponential asymptotic behavior these topological solutions exhibit a power-law one. We investigate the…

高能物理 - 理论 · 物理学 2012-08-24 A. R. Gomes , R. Menezes , J. C. R. E. Oliveira

We consider a system consisting of a sequential composition of Mealy machines, called head and tail. We study two problems related to these systems. In the first problem, models of both head and tail components are available, and the aim is…

形式语言与自动机理论 · 计算机科学 2021-10-08 Alberto Larrauri , Roderick Bloem

This work studies applications and generalizations of a simple estimation technique that provides exponential concentration under heavy-tailed distributions, assuming only bounded low-order moments. We show that the technique can be used…

机器学习 · 计算机科学 2016-04-19 Daniel Hsu , Sivan Sabato

We propose a fast and robust method to estimate the ground surface from LIDAR measurements on an automated vehicle. The ground surface is modeled as a UBS which is robust towards varying measurement densities and with a single parameter…

机器人学 · 计算机科学 2022-03-03 Sascha Wirges , Kevin Rösch , Frank Bieder , Christoph Stiller