Title
Linear embeddings of low-dimensional subsets of a Hilbert space to Rm.
Abstract
We consider the problem of embedding a low-dimensional set, M, from an infinite-dimensional Hilbert space, H, to a finite-dimensional space. Defining appropriate random linear projections, we propose two constructions of linear maps that have the restricted isometry property (RIP) on the secant set of M with high probability. The first one is optimal in the sense that it only needs a number of projections essentially proportional to the intrinsic dimension of M to satisfy the RIP. The second one, which is based on a variable density sampling technique, is computationally more efficient, while potentially requiring more measurements.
Year
Venue
Keywords
2015
European Signal Processing Conference
Compressed sensing,restricted isometry property,box-counting dimension,variable density sampling
DocType
ISSN
Citations 
Conference
2076-1465
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Gilles Puy110613.82
Mike E. Davies21664120.39
Rémi Gribonval3120783.59