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Unsupervised target detection using canonical correlation analysis and its application to Raman spectroscopy
 in Proc. IEEE Int. Workshop Machine Learn. Signal Process
, 2007
"... We present an unsupervised detection approach, detection with canonical correlation (DCC), for target detection based on a linear mixture model. Our aim is determining the existence of certain targets in a given mixture without specific information on the targets or the background. We use canonical ..."
Abstract

Cited by 2 (2 self)
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We present an unsupervised detection approach, detection with canonical correlation (DCC), for target detection based on a linear mixture model. Our aim is determining the existence of certain targets in a given mixture without specific information on the targets or the background. We use canonical correlations between the target set and the mixed components as the detection index, such that the coefficients of the canonical vector are used to determine the indices of components from a given target library, thus enabling both detection and identification of the components that might be present in the mixture. For applications where the contributions of components are nonnegative, we incorporate nonnegativity constraints into the canonical correlation analysis framework and derive the corresponding algorithm. We show that DCC and especially its nonnegative variant leads to significant performance gain when applied to detection of surfacedeposited chemical agents in Raman spectroscopy. 1.
Gradient projection antiwindup scheme
, 2011
"... AbstractThe gradient projection antiwindup (GPAW) scheme was recently proposed as an antiwindup method for nonlinear multiinputmultioutput systems/controllers, the solution of which was recognized as a largely open problem in a recent survey paper. This paper analyzes the properties of the GP ..."
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Cited by 2 (1 self)
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AbstractThe gradient projection antiwindup (GPAW) scheme was recently proposed as an antiwindup method for nonlinear multiinputmultioutput systems/controllers, the solution of which was recognized as a largely open problem in a recent survey paper. This paper analyzes the properties of the GPAW scheme applied to an input constrained first order linear time invariant (LTI) system driven by a first order LTI controller, where the objective is to regulate the system state about the origin. We show that the GPAW compensated system is in fact a projected dynamical system (PDS), and use results in the PDS literature to assert existence and uniqueness of its solutions. The main result is that the GPAW scheme can only maintain/enlarge the exact region of attraction of the uncompensated system.
of Gradient Projection Antiwindup Compensated Systems, ” two
, 2010
"... Abstract—In a conference paper titled “Geometric Properties ..."
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