2026-07-20T01:38:19Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:19032 2024-03-06T11:03:19Z ddc:004 open_access

Contextual Behavioural Metrics Dal Lago, Ugo Murgia, Maurizio Behavioural metrics Labelled Transition Systems Differential Semantics We introduce contextual behavioural metrics (CBMs) as a novel way of measuring the discrepancy in behaviour between processes, taking into account both quantitative aspects and contextual information. This way, process distances by construction take the environment into account: two (non-equivalent) processes may still exhibit very similar behaviour in some contexts, e.g., when certain actions are never performed. We first show how CBMs capture many well-known notions of equivalence and metric, including Larsen’s environmental parametrized bisimulation. We then study compositional properties of CBMs with respect to some common process algebraic operators, namely prefixing, restriction, non-deterministic sum, parallel composition and replication. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Ugo Dal Lago and Maurizio Murgia 2023 Is Part Of LIPIcs, Volume 279, 34th International Conference on Concurrency Theory (CONCUR 2023) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.CONCUR.2023.38 urn:nbn:de:0030-drops-190320 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2023.38 eng https://creativecommons.org/licenses/by/4.0/legalcode