Optimizarea performantelor sistemelor biometrice prin selectia punctelor de operare in analiza ROC

Autor/autori: Sorin SOVIANY, Sorin PU?COCI

Rezumat: Articolul prezinta un model practic pentru evaluarea si optimizarea performantelor sistemelor biometrice, model care are in vedere adaptarea nivelelor de securitate la constrangerile de performanta si de costuri impuse de aplicatiile utilizatorilor. Analiza ROC (Caracteristica de operare a receptorului) aplicata in cazul sistemelor biometrice conduce la stabilirea unui numar de puncte de operare, in functie de pragurile de securitate/utilizabilitate impuse de aplicatia client. Selectia punctului optim de operare permite adaptarea performantei sistemului biometric la constrangerile specifice ale aplicatiei.

Cuvinte cheie: analiza ROC, puncte de operare, optimizare


Abstract: The paper presents a practical framework for the biometric systems performances assessment and optimization; this approach is looking to adjust the provided security levels to the users applicationsspecific performance and costs-related constraints. The ROC (Receiver Operation Characteristic) Analysis for biometric systems provides some operating points according to the security/useness thresholding given by the client application. The suitable operating point selection allows to adjust the biometric system performance to the application specific constraints

Keywords: ROC analysis, operating points, optimization

 

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