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ICASSP
2010
IEEE
15 years 6 months ago
A union of incoherent spaces model for classification
We present a new and computationally efficient scheme for classifying signals into a fixed number of known classes. We model classes as subspaces in which the corresponding data...
Karin Schnass, Pierre Vandergheynst
CSL
2008
Springer
15 years 6 months ago
User simulation in a stochastic dialog system
We present a new methodology of user simulation applied to the evaluation and refinement of stochastic dialog systems. Common weaknesses of these systems are the scarceness of the...
Francisco Torres, Emilio Sanchis, Encarna Segarra
JCM
2006
95views more  JCM 2006»
15 years 6 months ago
A Learning-based Adaptive Routing Tree for Wireless Sensor Networks
One of the most common communication patterns in sensor networks is routing data to a base station, while the base station can be either static or mobile. Even in static cases, a s...
Ying Zhang, Qingfeng Huang
ICRA
2009
IEEE
151views Robotics» more  ICRA 2009»
15 years 4 months ago
Surface identification using simple contact dynamics for mobile robots
This paper describes an approach to surface identification in the context of mobile robotics, applicable to supervised and unsupervised learning. The identification is based on ana...
Philippe Giguère, Gregory Dudek
CORR
2011
Springer
164views Education» more  CORR 2011»
15 years 1 months ago
Iterative Reweighted Algorithms for Sparse Signal Recovery with Temporally Correlated Source Vectors
Iterative reweighted algorithms, as a class of algorithms for sparse signal recovery, have been found to have better performance than their non-reweighted counterparts. However, f...
Zhilin Zhang, Bhaskar D. Rao