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Mon 10 Dec 2018

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Multimodal Biometric Score Fusion: the Mean Rule vs. Support Vector Classifiers

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Source: EUSIPCO'05
Authors: Sonia Garcia-Salicetti, Mohamed Anouar Mellakh, Lorene Allano, Bernadette Dorizzi
Keywords: multimodality, Fusion, normalization, degraded conditions

Abstract: Recently, a discrepancy in results has appeared in the litera-ture concerning score fusion methods, classified in “combi-nation methods” and “classification methods” [1]. Some works suggest that a simple Arithmetic Mean Rule (AMR) can outperform some training-based methods on multimodal data [2], while others favour, among other trained classifiers, a Support Vector Machine [3]. This paper makes a compara-tive study of the Arithmetic Mean Rule (AMR) coupled with different state-of-the-art normalization techniques [4, 5] and a linear Support Vector Machine (SVM), in the framework of voice and on-line signature scores fusion. Two experi-ments differing in the difficulty to discriminate genuine from impostor accesses are carried out on the BIOMET da-tabase [6]

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