Sciweavers

2711 search results - page 443 / 543
» Convergence of the Wake-Sleep Algorithm
Sort
View
SODA
2004
ACM
104views Algorithms» more  SODA 2004»
14 years 11 months ago
Variable length path coupling
We present a new technique for constructing and analyzing couplings to bound the convergence rate of finite Markov chains. Our main theorem is a generalization of the path couplin...
Thomas P. Hayes, Eric Vigoda
SIP
2003
14 years 11 months ago
Time Domain Optimization Techniques for Blind Separation of Non-stationary Convolutive Mixed Signals
This paper aims to solve the problem of Blind Signal Separation (BSS) in a convolutive environment based on output correlation matrix diagonalization. Firstly an extension of the ...
Iain Russell, Alfred Mertins, Jiangtao Xi
WSCG
2003
136views more  WSCG 2003»
14 years 11 months ago
Piecewise Circular Approximation of Spirals and Polar Polynomials
Spirals are surprisingly common in science, nature, physics, astronomy, flora and fauna, and the arts. In Cartesian coordinates they are typically transcendental functions, which ...
Francesca Taponecco, Marc Alexa
WSCG
2000
132views more  WSCG 2000»
14 years 11 months ago
Adaptive Filtering for Progressive Monte Carlo Image Rendering
Image filtering is often applied as a post-process to Monte Carlo generated pictures, in order to reduce noise. In this paper we present an algorithm based on density estimation t...
Frank Suykens, Yves D. Willems
VMV
2007
122views Visualization» more  VMV 2007»
14 years 11 months ago
An iterative framework for registration with reconstruction
The core of most registration algorithms aligns scan data by pairs, minimizing their relative distance. This local optimization must generally pass through a validation procedure t...
Thales Vieira, Adelailson Peixoto, Luiz Velho, Tho...