首页数学
   首页管理学
   首页统计学
0


蒸馏感测:主动感测,稀疏恢复

Distilled Sensing: Active sensing for sparse recovery
课程网址: http://videolectures.net/smls09_castro_dsasf/  
主讲教师: Rui Castro
开课单位: 哥伦比亚大学
开课时间: 2009-05-06
课程语种: 英语
中文简介:
在数据丰富的应用程序中对稀疏表示的研究和使用已引起信号处理,统计和机器学习社区的高度关注。在本文中,我们描述了一种称为Distilled Sensing(DS)的新颖传感程序,它是一种用于恢复噪声中稀疏信号的顺序自适应方法,而无源传感方法是目前最广泛的数据收集方法,涉及完全非自适应的数据收集程序。在观察到任何数据之前指定。与此相反,DS会以顺序和自适应的方式收集数据。通常将此类过程称为主动感测或顺序实验设计,并允许使用在较早阶段观察到的数据来指导将来的数据收集。主动感应的额外灵活性以及稀疏性假设,有可能实现极其有效和准确的推断。
课程简介: The study and use of sparse representations in data-rich applications has garnered signi cant attention in the signal processing, statistics, and machine learning communities. In the present work we describe a novel sensing procedure called Distilled Sensing (DS), which is a sequential and adaptive approach for recovering sparse signals in noise. Passive sensing approaches, currently the most widespread data collection methods, involve non- adaptive data collection procedures that are completely speci ed before any data is observed. In contrast, DS collects data in a sequential and adaptive manner. Often such procedures are known as active sensing or sequential experimental design, and allow the use of data observed in earlier stages to guide the collection of future data. The added exibility of active sensing, together with a sparsity assumption, has the potential to enable extremely effcient and accurate inference.
关 键 词: 稀疏表示; 信号处理; 机器学习
课程来源: 视频讲座网
最后编审: 2019-09-21:cwx
阅读次数: 38