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» Stability margins for generalized state space systems
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ICFP
2010
ACM
13 years 10 months ago
The impact of higher-order state and control effects on local relational reasoning
Reasoning about program equivalence is one of the oldest problems in semantics. In recent years, useful techniques have been developed, based on bisimulations and logical relation...
Derek Dreyer, Georg Neis, Lars Birkedal
CHI
2005
ACM
14 years 9 months ago
Modal spaces: spatial multiplexing to mediate direct-touch input on large displays
We present a new interaction technique for large directtouch displays called Modal Spaces. Modal interfaces require the user to keep track of the state of the system. The Modal Sp...
Katherine Everitt, Chia Shen, Kathy Ryall, Clifton...
TWC
2008
150views more  TWC 2008»
13 years 9 months ago
Combining Beamforming and Space-Time Coding Using Quantized Feedback
We combine space-time coding and transmit beamforming over multiple-antenna quasi-static fading channels using resolution-constrained channel state information at the transmitter ...
Siavash Ekbatani, Hamid Jafarkhani
NOSSDAV
2009
Springer
14 years 3 months ago
Dynamic overlay multicast in 3D video collaborative systems
Multi-stream/multi-site 3D video collaborative systems are promising as they enable remote users to interact in a 3D virtual space with a sense of co-presence. However, the decent...
Wanmin Wu, Zhenyu Yang, Klara Nahrstedt
CDC
2009
IEEE
132views Control Systems» more  CDC 2009»
14 years 1 months ago
Q-learning and Pontryagin's Minimum Principle
Abstract— Q-learning is a technique used to compute an optimal policy for a controlled Markov chain based on observations of the system controlled using a non-optimal policy. It ...
Prashant G. Mehta, Sean P. Meyn