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ICIP
2009
IEEE
16 years 14 hour ago
Affine Alignment Of Compound Objects: A Direct Approach
A direct approach for parametric estimation of 2D affine deformations between compound shapes is proposed. It provides the result as a least-square solution of a linear system of ...
ICIP
2009
IEEE
16 years 13 hour ago
Nonlinear Registration Of Binary Shapes
A novel approach is proposed to estimate the parameters of a diffeomorphism that aligns two binary images. Classical approaches usually define a cost function based on a similarit...
ICML
2006
IEEE
15 years 11 months ago
Autonomous shaping: knowledge transfer in reinforcement learning
We introduce the use of learned shaping rewards in reinforcement learning tasks, where an agent uses prior experience on a sequence of tasks to learn a portable predictor that est...
George Konidaris, Andrew G. Barto
ICASSP
2008
IEEE
15 years 5 months ago
Bayesian extensions to non-negative matrix factorisation for audio signal modelling
We describe the underlying probabilistic generative signal model of non-negative matrix factorisation (NMF) and propose a realistic conjugate priors on the matrices to be estimate...
Tuomas Virtanen, Ali Taylan Cemgil, Simon J. Godsi...
ICDCSW
2008
IEEE
15 years 5 months ago
Measuring the Node Energy Consumption in USB Based WSN Testbeds
Energy consumption is one of the critical concerns in sensor networks. In particular, there is substantial interest to investigate the distribution of the energy consumption among...
Andreas Köpke, Adam Wolisz