We study a probabilistic variant of binary session types that relate to a class of Finite-State Markov Chains. The probability annotations in session types enable the reasoning on the probability that a session terminates successfully, for some user-definable notion of successful termination. We develop a type system for a simple session calculus featuring probabilistic choices and show that the success probability of well-typed processes agrees with that of the sessions they use. To this aim, the type system needs to track the propagation of probabilistic choices across different sessions.
@InProceedings{inverso_et_al:LIPIcs.CONCUR.2020.14, author = {Inverso, Omar and Melgratti, Hern\'{a}n and Padovani, Luca and Trubiani, Catia and Tuosto, Emilio}, title = {{Probabilistic Analysis of Binary Sessions}}, booktitle = {31st International Conference on Concurrency Theory (CONCUR 2020)}, pages = {14:1--14:21}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-160-3}, ISSN = {1868-8969}, year = {2020}, volume = {171}, editor = {Konnov, Igor and Kov\'{a}cs, Laura}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2020.14}, URN = {urn:nbn:de:0030-drops-128264}, doi = {10.4230/LIPIcs.CONCUR.2020.14}, annote = {Keywords: Probabilistic choices, session types, static analysis, deadlock freedom} }
Feedback for Dagstuhl Publishing