ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
In this paper, we consider the problem of geolocating an unknown emitter by a satellite cluster. We formulate the problem as the maximum likelihood location estimation by using TD...
ORL
2011
12 years 11 months ago
2011
We derive a convex relaxation for cardinality constrained Principal Component Analysis (PCA) by using a simple representation of the L1 unit ball and standard Lagrangian duality. ...
TIT
2010
12 years 11 months ago
2010
This paper considers recovery of jointly sparse multichannel signals from incomplete measurements. Several approaches have been developed to recover the unknown sparse vectors from...
ICCV
2009
IEEE
13 years 2 months ago
2009
IEEE
In this work we revisit the Mumford-Shah functional, one of the most studied variational approaches to image segmentation. The contribution of this paper is to propose an algorith...
ICML
2010
IEEE
13 years 5 months ago
2010
IEEE
Approximate MAP inference in graphical models is an important and challenging problem for many domains including computer vision, computational biology and natural language unders...
NIPS
2007
13 years 6 months ago
2007
We investigate a new, convex relaxation of an expectation-maximization (EM) variant that approximates a standard objective while eliminating local minima. First, a cautionary resu...
ECCV
2010
Springer
13 years 9 months ago
2010
Springer
Convex relaxations for continuous multilabel problems have attracted a lot of interest recently [1–5]. Unfortunately, in previous methods, the runtime and memory requirements sca...
CVPR
2009
IEEE
2009
IEEE
Continuous Ratio Optimization via Convex Relaxation with Applications to Multiview 3D Reconstruction
14 years 11 months ago
We introduce a convex relaxation framework to optimally
minimize continuous surface ratios. The key idea is to minimize
the continuous surface ratio by solving a sequence
of con...