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ICA
2007
Springer
14 years 22 days ago
Estimating the Mixing Matrix in Sparse Component Analysis Based on Converting a Multiple Dominant to a Single Dominant Problem
We propose a new method for estimating the mixing matrix, A, in the linear model x(t) = As(t), t = 1, . . . , T, for the problem of underdetermined Sparse Component Analysis (SCA)....
Nima Noorshams, Massoud Babaie-Zadeh, Christian Ju...
TIFS
2008
123views more  TIFS 2008»
13 years 8 months ago
Digital Single Lens Reflex Camera Identification From Traces of Sensor Dust
Abstract--Digital single lens reflex cameras suffer from a wellknown sensor dust problem due to interchangeable lenses that they deploy. The dust particles that settle in front of ...
Ahmet Emir Dirik, Husrev T. Sencar, Nasir D. Memon
CVPR
2005
IEEE
14 years 11 months ago
Determining the Radiometric Response Function from a Single Grayscale Image
A method is presented for computing the radiometric response function of a camera from a single grayscale image. While most previous techniques require a set of registered images ...
Stephen Lin, Lei Zhang
IEEESCC
2010
IEEE
14 years 23 days ago
Analyzing Communities vs. Single Agent-Based Web Services: Trust Perspectives
—Gathering functionally similar agent-based Web services into communities has been proposed and promoted on many occasions. In this paper, we compare the performance of these com...
Babak Khosravifar, Jamal Bentahar, Ahmad Moazin, Z...
ML
2008
ACM
152views Machine Learning» more  ML 2008»
13 years 8 months ago
Learning near-optimal policies with Bellman-residual minimization based fitted policy iteration and a single sample path
Abstract. We consider batch reinforcement learning problems in continuous space, expected total discounted-reward Markovian Decision Problems. As opposed to previous theoretical wo...
András Antos, Csaba Szepesvári, R&ea...