133 search results - page 18 / 27 » Simple and practical algorithm for sparse Fourier transform |
IM
2008
13 years 7 months ago
2008
Social networks are ubiquitous. The discovery of close-knit clusters in these networks is of fundamental and practical interest. Existing clustering criteria are limited in that c...
MM
2010
ACM
13 years 5 months ago
2010
ACM
In this paper, we investigate how an unlabeled image corpus can facilitate the segmentation of any given image. A simple yet efficient multi-task joint sparse representation model...
STOC
2004
ACM
14 years 7 months ago
2004
ACM
The main result of this paper is a near-optimal derandomization of the affine homomorphism test of Blum, Luby and Rubinfeld (Journal of Computer and System Sciences, 1993). We sho...
ICIP
2009
IEEE
14 years 8 months ago
2009
IEEE
Compressive Sensing (CS) is a new paradigm in signal acquisition and compression. In compressive sensing, a compressible signal is acquired using much less measurements than the o...
SGP
2007
13 years 9 months ago
2007
Modeling tasks, such as surface deformation and editing, can be analyzed by observing the local behavior of the surface. We argue that defining a modeling operation by asking for ...