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AIEDU
2007
86views more  AIEDU 2007»
13 years 8 months ago
A Study of Feedback Strategies in Foreign Language Classrooms and Tutorials with Implications for Intelligent Computer-Assisted
This paper presents two new corpus-based studies of feedback in the domain of teaching Spanish as a foreign language, concentrating on the type and frequency of different feedback ...
Anita Ferreira, Johanna D. Moore, Chris Mellish
MOBIHOC
2010
ACM
13 years 6 months ago
Barrier coverage with sensors of limited mobility
Barrier coverage is a critical issue in wireless sensor networks for various battlefield and homeland security applications. The goal is to effectively detect intruders that attem...
Anwar Saipulla, Benyuan Liu, Guoliang Xing, Xinwen...
ICML
2007
IEEE
14 years 9 months ago
A permutation-augmented sampler for DP mixture models
We introduce a new inference algorithm for Dirichlet process mixture models. While Gibbs sampling and variational methods focus on local moves, the new algorithm makes more global...
Percy Liang, Michael I. Jordan, Benjamin Taskar
ICRA
2008
IEEE
141views Robotics» more  ICRA 2008»
14 years 2 months ago
Reciprocal Velocity Obstacles for real-time multi-agent navigation
— In this paper, we propose a new concept — the “Reciprocal Velocity Obstacle”— for real-time multi-agent navigation. We consider the case in which each agent navigates i...
Jur P. van den Berg, Ming C. Lin, Dinesh Manocha
ICC
2007
IEEE
290views Communications» more  ICC 2007»
14 years 2 months ago
Mobile Position Tracking by TDOA-Doppler Hybrid Estimation in Mobile Cellular System
Abstract— An effective method is presented for position tracking of a moving mobile terminal (MT). The method is based on time/distance difference of arrival (TDOA) estimation an...
Wen Pan, Jiang Wu, Zhanjun Jiang, Yan Wang, Xiaohu...