ic Presentations - Abstracts list Monday, August 31st Session 1 – Chairman: Jean-Marc Odobez Title Quality Measures and Stacking Classifiers in Multimodal Biometric Recognition Speaker Andrzej Drygajlo (EPFL) Schedule 16:30 – 17:00 Existing approaches to biometric person recognition with quality measures make a clear distinction between the single-modality applications and the multi-modal scenarios. This study bridges this gap with Q-stack, a stacking-based classifier ensemble, which uses the classindependent signal quality measures and baseline classifier scores in order to improve the accuracy of uni- and multi-modal biometric classification. The seemingly counterintuitive notion of using class-independent quality information for improving class separation is explained. The authors present Q-stack as a generalised framework of classification with quality information, including age as a metadata quality measure. The authors further demonstrate the application of Q-stack on the tas...