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ERSA
2006
115views Hardware» more  ERSA 2006»
14 years 11 months ago
Reconfigurable Acceleration of Robust Frequency-Domain Echo Cancellation
Acoustic echo control is of vital interest for hands-free operation of telecommunications equipment. An important property of an acoustic echo controller is its capability to hand...
Chun Hok Ho, Ka Fai Cedric Yiu, Jiaquan Huo, Sven ...
CDC
2010
IEEE
139views Control Systems» more  CDC 2010»
14 years 4 months ago
Q-learning and enhanced policy iteration in discounted dynamic programming
We consider the classical finite-state discounted Markovian decision problem, and we introduce a new policy iteration-like algorithm for finding the optimal state costs or Q-facto...
Dimitri P. Bertsekas, Huizhen Yu
SIAMCO
2008
56views more  SIAMCO 2008»
14 years 9 months ago
Singular Trajectories of Control-Affine Systems
Abstract. When applying methods of optimal control to motion planning or stabilization problems, some theoretical or numerical difficulties may arise, due to the presence of specif...
Yacine Chitour, Frédéric Jean, Emman...
ISCAS
2006
IEEE
112views Hardware» more  ISCAS 2006»
15 years 3 months ago
Differential and geometric properties of Rayleigh quotients with applications
the following cost functions: In this paper, learning rules are proposed for simultaneous corn- GI(U) = tr{(UTU)(UTBU)-lD, (la) putation of minor eigenvectors of a covariance matri...
M. A. Hasan
ICMCS
2006
IEEE
123views Multimedia» more  ICMCS 2006»
15 years 3 months ago
Experiences with High Definition Interactive Video Conferencing
We review the design and implementation of UltraGrid, a new high definition video conferencing system, and present some experimental results. UltraGrid was the first system to s...
Ladan Gharai, Tom Lehman, Alvaro Saurin, Colin Per...