Shape and data analysis using computational differential geometry

使用计算微分几何进行形状和数据分析

基本信息

批准号：
1418422
负责人：
Hong-Kai Zhao
金额：
$ 32.89万
依托单位：
University of California-Irvine
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2014
资助国家：
美国
起止时间：
2014-07-01 至 2018-12-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1418422&HistoricalAwards=false
关键词：
Shape data analysis using computational

项目摘要

Due to rapid and vast data acquisition by modern technology, experiments and computer simulations, computational and data analytical approaches have become increasingly important for many important applications in science and engineering. An important but challenging task in data representation, analysis and understanding is to extract information of interest, which includes intrinsic geometric features and global structures from large data set. The aim of this project is to introduce advanced mathematical theories and analytical tools in differential geometry and translate them into efficient computation algorithms for data analysis.The main effort of this project is to develop new mathematical models and computational tools for a few important but challenging tasks in 3D modeling and data analysis in higher dimensions. These models and tools will be utilized to extract and characterize geometric structures for data analysis in various applications. In particular, quasi-conformal map and conformal structure will be used for representation and analysis for surface maps and shape modeling. Intrinsic geometric differential operators, such as Laplace-Beltrami operator and its eigen-system, will be explored for point cloud analysis and manifold learning in high dimensions. Models, methods and computational tools developed in this project will be tested on benchmark data sets as well as real applications. Interdisciplinary applications and collaborations with computer scientists and statisticians will also be pursued.

由于现代技术、实验和计算机模拟的快速和大量数据采集，计算和数据分析方法对于科学和工程中的许多重要应用变得越来越重要。数据表示、分析和理解中一个重要但具有挑战性的任务是从大数据集中提取感兴趣的信息，包括内在的几何特征和全局结构。该项目的目的是引入微分几何中的先进数学理论和分析工具，并将其转化为用于数据分析的高效计算算法。该项目的主要工作是为一些重要但具有挑战性的任务开发新的数学模型和计算工具3D 建模和更高维度的数据分析。这些模型和工具将用于提取和表征几何结构，以便在各种应用中进行数据分析。特别是，准共形图和共形结构将用于表面图和形状建模的表示和分析。将探索内在几何微分算子，例如 Laplace-Beltrami 算子及其特征系统，用于高维点云分析和流形学习。该项目开发的模型、方法和计算工具将在基准数据集和实际应用上进行测试。还将寻求跨学科应用以及与计算机科学家和统计学家的合作。