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In this paper, we propose an efficient method to estimate the Weingarten map for point cloud data sampled from manifold embedded in Euclidean space. A statistical model is established to analyze the asymptotic property of the estimator. In…

机器学习 · 统计学 2021-05-17 Yueqi Cao , Didong Li , Huafei Sun , Amir H Assadi , Shiqiang Zhang

The time evolution of complex systems usually can be described through stochastic processes. These processes are measured at finite resolution, what necessarily reduces them to finite sequences of real numbers. In order to relate these data…

凝聚态物理 · 物理学 2007-05-23 D. M. Tavares , L. S. Lucena

Exemplar-based inpainting is the process of reconstructing missing parts of an image by searching the remaining data for patches that fit seamlessly. The image is completed to a plausible-looking solution by repeatedly inserting the patch…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Tim Dahmen , Patrick Trampert , Pascal Peter , Pinak Bheed , Joachim Weickert , Philipp Slusallek

Quantum states evolving at equidistant steps into a set of mutually orthogonal states of finite or infinite cardinality p exhibit an interesting physical effect. The analysis of the amplitudes of the state at half the step time with the…

量子物理 · 物理学 2009-09-29 Hans-Rudolf Thomann

In this paper we have introduced arithmetic ff-continuity and arithmetic fb-continuity utilizing the concept of forward and backward arithmetic convergence in quasi cone metric spaces. These concepts are used to prove some fascinating…

泛函分析 · 数学 2022-12-21 Shallu Sharma , Iqbal Kour

Functional data analysis is ubiquitous in most areas of sciences and engineering. Several paradigms are proposed to deal with the dimensionality problem which is inherent to this type of data. Sparseness, penalization, thresholding, among…

统计方法学 · 统计学 2018-09-05 Rodney V. Fonseca , Aluísio Pinheiro

We introduce a definition of finite-time curvature evolution along with our recent study on shape coherence in nonautonomous dynamical systems. Comparing to slow evolving curvature preserving the shape, large curvature growth points reveal…

动力系统 · 数学 2015-06-11 Tian Ma , Erik Bollt

We consider the problem of producing compact architectures for text classification, such that the full model fits in a limited amount of memory. After considering different solutions inspired by the hashing literature, we propose a method…

计算与语言 · 计算机科学 2016-12-19 Armand Joulin , Edouard Grave , Piotr Bojanowski , Matthijs Douze , Hérve Jégou , Tomas Mikolov

A novel algorithm for creating a mathematical model of curved shapes is introduced. The core of the algorithm is based on building a graph representation of the contoured image, which occupies less storage space than produced by raster…

人机交互 · 计算机科学 2007-05-23 Denis V. Popel

Graph embeddings have emerged as a powerful tool for representing complex network structures in a low-dimensional space, enabling the use of efficient methods that employ the metric structure in the embedding space as a proxy for the…

社会与信息网络 · 计算机科学 2024-04-18 Radosław Nowak , Adam Małkowski , Daniel Cieślak , Piotr Sokół , Paweł Wawrzyński

Recent methods for learning vector space representations of words have succeeded in capturing fine-grained semantic and syntactic regularities using vector arithmetic. However, these vector space representations (created through large-scale…

计算与语言 · 计算机科学 2016-05-17 Martin Andrews

We give a generalization of Meeks-Yau's celebrated embeddedness result for the solutions of the Plateau problem for extreme curves.

微分几何 · 数学 2021-05-12 Baris Coskunuzer

We prove a compactness theorem for holomorphic curves in 4-dimensional symplectizations that have embedded projections to the underlying 3-manifold. It strengthens the cylindrical case of the SFT compactness theorem by using intersection…

辛几何 · 数学 2008-03-07 Chris Wendl

Embeddings are a basic initial feature extraction step in many machine learning models, particularly in natural language processing. An embedding attempts to map data tokens to a low-dimensional space where similar tokens are mapped to…

机器学习 · 计算机科学 2025-04-10 Golara Ahmadi Azar , Melika Emami , Alyson Fletcher , Sundeep Rangan

We prove convergence rates of explicit finite difference schemes for the linear advection and wave equation in one space dimension with H\"older continuous coefficient. The obtained convergence rates explicitly depend on the H\"older…

数值分析 · 数学 2016-10-04 Franziska Weber

In this paper we consider traces at initial times for functions with mixed time-space smoothness. Such results are often needed in the theory of evolution equations. Our result extends and unifies many previous results. Our main improvement…

偏微分方程分析 · 数学 2022-05-17 Antonio Agresti , Nick Lindemulder , Mark Veraar

In this paper, we propose a novel lower dimensional representation of a shape sequence. The proposed dimension reduction is invertible and computationally more efficient in comparison to other related works. Theoretically, the differential…

计算机视觉与模式识别 · 计算机科学 2011-08-02 Sheng Yi , Hamid Krim , Larry K. Norris

Recently, many works have focused on the characterization of non-linear dimensionality reduction methods obtained by quantizing linear embeddings, e.g., to reach fast processing time, efficient data compression procedures, novel…

信息论 · 计算机科学 2016-12-30 Laurent Jacques , Valerio Cambareri

In a recent result by the authors (ref. [1]) it was proved that solutions of the self-similar fragmentation equation converge to equilibrium exponentially fast. This was done by showing a spectral gap in weighted $L^2$ spaces of the…

偏微分方程分析 · 数学 2011-12-06 María J. Cáceres , José A. Cañizo , Stéphane Mischler

We consider immersions admitting uniform representations as an L-Lipschitz graph. In codimension 1, we show compactness for such immersions for arbitrary fixed finite L and uniformly bounded volume. The same result is shown in arbitrary…

微分几何 · 数学 2015-06-03 Patrick Breuning