4 papers
Analysis of Sparse Subspace Clustering: Experiments and Random Projection
Mehmet F. Demirel, Enrico Au-Yeung
Clustering can be defined as the process of assembling objects into a number of groups whose elements are similar to each other in some manner. As a technique that is used in many…
Wind-tree model for billiard motion from a signal processing viewpoint
Enrico Au-Yeung, Nick Kreissler
In the Ehrenfest wind tree model, a point particle moves on the plane and collides with randomly placed fixed square obstacles under the usual law of geometric optics. The particle…
Phase Transition in the Recovery of Rank One Matrices Corrupted by Gaussian Noise
Enrico Au-Yeung, Greg Zanotti
In datasets where the number of parameters is fixed and the number of samples is large, principal component analysis (PCA) is a powerful dimension reduction tool. However, in many…
Sparse Reconstruction with Multiple Walsh matrices
Enrico Au-Yeung
The problem of how to find a sparse representation of a signal is an important one in applied and computational harmonic analysis. It is closely related to the problem of how to re…