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The predictions of the geometric collective model (GCM) for different sets of Hamiltonian parameter values are related by analytic scaling relations. For the quartic truncated form of the GCM -- which describes harmonic oscillator, rotor,…

核理论 · 物理学 2007-05-23 M. A. Caprio

Group synchronization refers to estimating a collection of group elements from the noisy pairwise measurements. Such a nonconvex problem has received much attention from numerous scientific fields including computer vision, robotics, and…

最优化与控制 · 数学 2021-12-14 Linglingzhi Zhu , Jinxin Wang , Anthony Man-Cho So

A conductivity inclusion, inserted in a homogeneous background, induces a perturbation in the background potential. This perturbation admits a multipole expansion whose coefficients are the so-called generalized polarization tensors (GPTs).…

偏微分方程分析 · 数学 2020-05-12 Doosung Choi , Junbeom Kim , Mikyoung Lim

Examining the extent to which measurements of rotation matrices are close to each other is challenging due measurement noise. To overcome this, data is typically smoothed and Riemannian and Euclidean metrics are applied. However, if…

数值分析 · 数学 2025-02-19 P. D. Ledger , W. R. B. Lionheart , J. Elgy

Proprioceptive localization refers to a new class of robot egocentric localization methods that do not rely on the perception and recognition of external landmarks. These methods are naturally immune to bad weather, poor lighting…

机器人学 · 计算机科学 2020-05-29 Hsin-Min Cheng , Dezhen Song

In this paper, we study a holographic description of weak measurements in conformal field theories (CFTs). Weak measurements can be viewed as a soft projection that interpolates between an identity operator and a projection operator, and…

高能物理 - 理论 · 物理学 2023-12-29 Xinyu Sun , Shao-Kai Jian

Targeted color-dots with varying shapes and sizes in images are first exhaustively identified, and then their multiscale 2D geometric patterns are extracted for testing spatial uniformness in a progressive fashion. Based on color theory in…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Shuting Liao , Li-Yu Liu , Ting-An Chen , Kuang-Yu Chen , Fushing Hsieh

Continuous symmetries are fundamental to many scientific and learning problems, yet they are often unknown a priori. Existing symmetry discovery approaches typically search directly in the space of transformation generators or rely on…

机器学习 · 计算机科学 2026-03-10 Pavan Karjol , Kumar Shubham , Prathosh AP

We propose a geometry constrained network, termed GC-Net, for weakly supervised object localization (WSOL). GC-Net consists of three modules: a detector, a generator and a classifier. The detector predicts the object location defined by a…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Weizeng Lu , Xi Jia , Weicheng Xie , Linlin Shen , Yicong Zhou , Jinming Duan

We introduce the category HG, whose objects are topological groupoids endowed with compatible measure theoretic data: a Haar system and a measure on the unit space. We then define and study the notion of weak-pullback in the category of…

泛函分析 · 数学 2011-01-18 Aviv Censor , Daniele Grandini

Many graph problems were first shown to be fixed-parameter tractable using the results of Robertson and Seymour on graph minors. We show that the combination of finite, computable, obstruction sets and efficient order tests is not just one…

计算复杂性 · 计算机科学 2013-05-15 Michael R. Fellows , Bart M. P. Jansen

In this paper, we study the recovery of multi-layer structures in inverse conductivity problem by using one measurement. First, we define the concept of Generalized Polarization Tensors (GPTs) for multi-layered medium and show some…

偏微分方程分析 · 数学 2025-12-18 Lingzheng Kong , Youjun Deng , Liyan Zhu

We develop mask iterative hard thresholding algorithms (mask IHT and mask DORE) for sparse image reconstruction of objects with known contour. The measurements follow a noisy underdetermined linear model common in the compressive sampling…

机器学习 · 统计学 2011-12-05 Aleksandar Dogandzic , Renliang Gu , Kun Qiu

Similar to humans perceiving visual scenes as objects, Object-Centric Learning (OCL) can abstract dense images or videos into sparse object-level features. Transformer-based OCL handles complex textures well due to the decoding guidance of…

计算机视觉与模式识别 · 计算机科学 2024-12-23 Rongzhen Zhao , Vivienne Wang , Juho Kannala , Joni Pajarinen

Consider a two-class classification problem where the number of features is much larger than the sample size. The features are masked by Gaussian noise with mean zero and covariance matrix $\Sigma$, where the precision matrix…

机器学习 · 统计学 2013-11-21 Yingying Fan , Jiashun Jin , Zhigang Yao

Unit norm finite frames are generalizations of orthonormal bases with many applications in signal processing. An important property of a frame is its coherence, a measure of how close any two vectors of the frame are to each other. Low…

信号处理 · 电气工程与系统科学 2018-06-21 Cristian Rusu , Nuria Gonzalez-Prelcic , Robert W. Heath

This paper presents a generic feature-based navigation framework for autonomous vehicles using a soft constrained Particle Filter. Selected map features, such as road and landmark locations, and vehicle states are used for designing soft…

机器人学 · 计算机科学 2021-01-19 Bruno H. Groenner Barbosa , Neel P. Bhatt , Amir Khajepour , Ehsan Hashemi

To operate safely and efficiently alongside human workers, collaborative robots (cobots) require the ability to quickly understand the dynamics of manipulated objects. However, traditional methods for estimating the full set of inertial…

机器人学 · 计算机科学 2023-07-07 Philippe Nadeau , Matthew Giamou , Jonathan Kelly

Relativistic ultracompact objects without an event horizon may be able to form in nature and merge as binary systems, mimicking the coalescence of ordinary black holes. The postmerger phase of such processes presents characteristic…

广义相对论与量子宇宙学 · 物理学 2026-04-15 Andrea Maselli , Sebastian H. Völkel , Kostas D. Kokkotas

Elliptic homogenization is used to determine coarse-grained properties of materials with features on small scales for heat transfer and elasticity. When microstructural features of a material have rapid, periodic fluctuations, the solution…

偏微分方程分析 · 数学 2026-03-17 Conor Rowan