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ESANN
2003
14 years 11 months ago
On Convergence Problems of the EM Algorithm for Finite Gaussian Mixtures
Efficient probability density function estimation is of primary interest in statistics. A popular approach for achieving this is the use of finite Gaussian mixture models. Based on...
Cédric Archambeau, John Aldo Lee, Michel Ve...
ICASSP
2009
IEEE
15 years 4 months ago
Shrinkage estimation of high dimensional covariance matrices
We address covariance estimation under mean-squared loss in the Gaussian setting. Specifically, we consider shrinkage methods which are suitable for high dimensional problems wit...
Yilun Chen, Ami Wiesel, Alfred O. Hero
FCT
2003
Springer
15 years 2 months ago
An Extended Quadratic Frobenius Primality Test with Average and Worst Case Error Estimates
We present an Extended Quadratic Frobenius Primality Test (EQFT), which is related to the Miller-Rabin test and to several other known probabilistic tests. EQFT takes time equival...
Ivan Damgård, Gudmund Skovbjerg Frandsen
ICRA
1999
IEEE
96views Robotics» more  ICRA 1999»
15 years 1 months ago
Interactive Manipulation of Articulated Objects with Geometry Awareness
Techniques for interactive 3D manipulation of articulated objects in cluttered environments should be geometricallyaware, going beyond basic inverse or forward kinematics to allow...
Min-Hyung Choi, James F. Cremer
SIAMSC
2008
132views more  SIAMSC 2008»
14 years 9 months ago
Stochastic Preconditioning for Diagonally Dominant Matrices
Abstract. This paper presents a new stochastic preconditioning approach for large sparse matrices. For the class of matrices that are row-wise and column-wise irreducibly diagonall...
Haifeng Qian, Sachin S. Sapatnekar