CUBICS: Situation-aware performance estimation for safety-relevant ML components
This study addresses the challenge that safety-critical ML component performance is highly scenario-dependent yet lacks modular field assessment capabilities. We propose CUBICS, a framework that partitions the operational domain into specific contexts and employs subjective logic with Bayesian inference to dynamically update component-level probabilistic assurances, deriving overall risk through context frequency analysis. The core contribution lies in enabling context-aware modular evaluation without requiring a monolithic system model, thereby overcoming the limitations of traditional global failure probabilities. Consequently, this work provides effective building blocks for safety assurance of safety-critical ML systems based on field data, facilitating more granular and adaptive risk quantification in dynamic environments.