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International audience ; Biometrics is an emerging technology more and more present in our daily life. However, building biometric systems requires a large amount of data that may be difficult to collect. Collecting such sensitive data is also very time consuming and constrained, s.a. GDPR legislation in Europe. In the case of keystroke dynamics, most existing databases have less than 200 users. For these reasons, it is crucial for this biometric modality to be able to generate a significant and realistic synthetic dataset of keystroke dynamics samples. We propose in this paper an original approach for the generation of synthetic keystroke data given samples from known users as a first step towards the generation of synthetic datasets. Experimental results show the capability of the proposed statistical model to generate realistic samples from existing datasets in the literature.

International audience ; Biometrics is an emerging technology more and more present in our daily life. However, building biometric systems requires a large amount of data that may be difficult to collect. Collecting such sensitive data is also very time consuming and constrained, s.a. GDPR legislation in Europe. In the case of keystroke dynamics, most existing databases have less than 200 users. For these reasons, it is crucial for this biometric modality to be able to generate a significant and realistic synthetic dataset of keystroke dynamics samples. We propose in this paper an original approach for the generation of synthetic keystroke data given samples from known users as a first step towards the generation of synthetic datasets. Experimental results show the capability of the proposed statistical model to generate realistic samples from existing datasets in the literature.

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In Latin languages speaking countries, increasing reference to EBP is often dismissed as an insignificant effect of rhetoric or an attempt to depolitisize debate. But an analysis of its origins suggests a more nuanced judgement. It rather shows the will to renew positive approaches to help public decision-making through an arsenal of ad hoc methodologies. In particular, EBP approaches contribute to counterbalance the increasing use of knowledge models based exclusively on opinions or simulations that relieve themselves from empirical validation. ; Dans les pays latins, les approches en terme d' »evidence-based policy » sont souvent assimilées à un simple effet de rhétorique ou une tentative de dépolitiser les débats. L'analyse de leur genèse invite à plus de nuances et montre plutôt la volonté de renouveler les démarches positives d'aide à la décision publique en proposant des méthodes ad hoc pour proposer une alternative au recours croissant à des modèles de connaissances reposant trop exclusivement sur des opinions ou des simulations qui s'exonèrent de tests de validation empiriques.