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CDC
2008
IEEE
150views Control Systems» more  CDC 2008»
16 years 28 days 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
16 years 27 days 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
16 years 19 days 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»
16 years 15 days 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»
16 years 14 days 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