Making Likelihood Ratios Digestible for Cross-Application Performance Assessment

Autor: Jonas Lindh, Daniel Ramos, Andreas Nautsch, Didier Meuwly, Christoph Busch
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: IEEE signal processing letters, 24(10):17176768, 1552-1556. IEEE
ISSN: 1070-9908
DOI: 10.1109/lsp.2017.2748899
Popis: Performance estimation is crucial to the assessment of novel algorithms and systems. In detection error tradeoff (DET) diagrams, discrimination performance is solely assessed targeting one application, where cross-application performance considers risks resulting from decisions, depending on application constraints. For the purpose of interchangeability of research results across different application constraints, we propose to augment DET curves by depicting systems regarding their support of security and convenience levels. Therefore, application policies are aggregated into levels based on verbal likelihood ratio scales, providing an easy to use concept for business-to-business communication to denote operative thresholds. We supply a reference implementation in Python, an exemplary performance assessment on synthetic score distributions, and a fine-tuning scheme for Bayes decision thresholds, when decision policies are bounded rather than fix.
Databáze: OpenAIRE