In this paper, we propose an adaptive and convex combination of a recent class of nonlinear adaptive filters in different configurations. The proposed architecture relies on the properties of the adaptive combination of filters which exploits the capabilities of different constituents, thus adaptively providing at least the behavior of the best performing filter. The nonlinear functions involved in the adaptation process are based on spline function interpolation and their shapes can be modified during learning using gradient-based techniques. In addition, we derive a simple form of the adaptation algorithm and present some experimental results that demonstrate the effectiveness of the proposed method.

Convex combination of spline adaptive filters / Scarpiniti, Michele; Comminiello, Danilo; Uncini, Aurelio. - (2019), pp. 1-5. (Intervento presentato al convegno 27th European Signal Processing Conference (EUSIPCO 2019) tenutosi a A Coruna, Spain) [10.23919/EUSIPCO.2019.8903134].

Convex combination of spline adaptive filters

Scarpiniti, Michele
;
Comminiello, Danilo;Uncini, Aurelio
2019

Abstract

In this paper, we propose an adaptive and convex combination of a recent class of nonlinear adaptive filters in different configurations. The proposed architecture relies on the properties of the adaptive combination of filters which exploits the capabilities of different constituents, thus adaptively providing at least the behavior of the best performing filter. The nonlinear functions involved in the adaptation process are based on spline function interpolation and their shapes can be modified during learning using gradient-based techniques. In addition, we derive a simple form of the adaptation algorithm and present some experimental results that demonstrate the effectiveness of the proposed method.
2019
27th European Signal Processing Conference (EUSIPCO 2019)
nonlinear adaptive filter; convex combination; flexible spline function; constrained least mean square; system identification
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Convex combination of spline adaptive filters / Scarpiniti, Michele; Comminiello, Danilo; Uncini, Aurelio. - (2019), pp. 1-5. (Intervento presentato al convegno 27th European Signal Processing Conference (EUSIPCO 2019) tenutosi a A Coruna, Spain) [10.23919/EUSIPCO.2019.8903134].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1335444
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