Group-by Objectives in Probabilistic Verification

• Applicant: Professor Dr. Javier Esparza, since 12/2023
• Subject Area: Theoretical Computer Science
• Term: since 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 427755713

We propose a probabilistic verification framework that provides more focused information on differences among possible behaviours of the system, generalizing the ideas of quantile analysis or distribution-based semantics. We draw an analogy with database group-by queries: Instead of looking at all data points, we can aggregate the data by functions such as AVG, corresponding to the expected value, but also MIN, corresponding to the worst-case/sure-winning analysis, or other functions. Tailored aggregation of similar behaviours provides a more focused abstract view of the system, leading to better control and understanding of the system.

• DFG Programme: Research Grants
• Ehemaliger Antragsteller: Professor Dr. Jan Kretinsky, Ph.D., until 12/2023