快速曲线波变换理论属于稀疏表达的范畴，采用基函数与信号的内积形式实现信号的稀疏表示。-An Alogrithm for Multimodal Biometric Recognition Based on Feature Level and the Second-Generation Curvelet Transform

介绍了LASSO算法，他是是一种很好的稀疏信号参数估计方法。-The batch least-absolute shrinkage and selection operator (Lasso) has well-documented merits for estimating sparse signals of inter- est emerging in various applications, where observations adhere to parsimonious

本文档是Karl Skretting的博士论文，主要研究dictionary learning，以及重叠帧里稀疏信号的呈现。-This document is Karl Skretting s PhD thesis, which focuses on dictionary learning and the presentation of sparse signals in overlapping frames.