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CDC
2008
IEEE
150views Control Systems» more  CDC 2008»
15 years 6 months ago
Subgradient methods and consensus algorithms for solving convex optimization problems
— In this paper we propose a subgradient method for solving coupled optimization problems in a distributed way given restrictions on the communication topology. The iterative pro...
Björn Johansson, Tamás Keviczky, Mikae...
GLOBECOM
2008
IEEE
15 years 6 months ago
Cooperative and Non-Cooperative Aloha Games with Channel Capture
—Game theory has been a useful tool for the analysis of random-access based wireless networks due to their decentralized operations. This paper studies one of the most widely use...
Younggeun Cho, Fouad A. Tobagi
AIED
2007
Springer
15 years 6 months ago
Beyond the code-and-count analysis of tutoring dialogues
In this paper, we raise a methodological issue concerning the empirical analysis of tutoring dialogues: The frequencies of tutoring moves do not necessarily reveal their causal ef...
Stellan Ohlsson, Barbara Di Eugenio, Bettina Chow,...
ICMCS
2006
IEEE
140views Multimedia» more  ICMCS 2006»
15 years 6 months ago
A 3D Spatio-Temporal Motion Estimation Algorithm for Video Coding
This paper presents a new spatio-temporal motion estimation algorithm for video coding. The algorithm is based on optimization theory and consists of the strategies including 3D s...
Gwo Giun Lee, Ming-Jiun Wang, He-Yuan Lin, Drew We...
ICRA
2006
IEEE
95views Robotics» more  ICRA 2006»
15 years 6 months ago
Power Assist System for Sinusoidal Motion by Passive Element and Impedance Control
— In this paper, we propose a power assist system that amplifies sinusoidal human’s torque and attains minimization of control input requirement using an impedance control and...
Mitsunori Uemura, Katsuya Kanaoka, Sadao Kawamura