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PR
2008
131views more  PR 2008»
13 years 8 months ago
A memetic algorithm for evolutionary prototype selection: A scaling up approach
Prototype selection problem consists of reducing the size of databases by removing samples that are considered noisy or not influential on nearest neighbour classification tasks. ...
Salvador García, José Ramón C...
ICASSP
2008
IEEE
14 years 3 months ago
Using variational bayes free energy for unsupervised voice activity detection
This paper addresses the problem of Voice Active Detection (VAD) in noisy environments. We introduce Variational Bayes approach to EM for classification to replace the heuristic ...
David Cournapeau, Tatsuya Kawahara
ICPR
2008
IEEE
14 years 10 months ago
An adaptive-PCA algorithm for reflectance estimation from color images
This paper deals with the problem of spectral reflectance estimation from color camera outputs. Because the reconstruction of such functions is an inverse problem, stabilizing the...
Alamin Mansouri, Jon Yngve Hardeberg, Tadeusz Sliw...
ECML
2007
Springer
14 years 21 days ago
Efficient Continuous-Time Reinforcement Learning with Adaptive State Graphs
Abstract. We present a new reinforcement learning approach for deterministic continuous control problems in environments with unknown, arbitrary reward functions. The difficulty of...
Gerhard Neumann, Michael Pfeiffer, Wolfgang Maass
ICIP
2010
IEEE
13 years 6 months ago
Morphological wavelet transform with adaptive dyadic structures
We propose a two component method for denoising multidimensional signals, e.g. images. The first component uses a dynamic programing algorithm of complexity O(N log N) to find an ...
Zhen James Xiang, Peter J. Ramadge