English

Priority Promotion with Parysian Flair

Data Structures and Algorithms 2021-09-01 v2

Abstract

We develop an algorithm that combines the advantages of priority promotion - one of the leading approaches to solving large parity games in practice - with the quasi-polynomial time guarantees offered by Parys' algorithm. Hybridising these algorithms sounds both natural and difficult, as they both generalise the classic recursive algorithm in different ways that appear to be irreconcilable: while the promotion transcends the call structure, the guarantees change on each level. We show that an interface that respects both is not only effective, but also efficient.

Keywords

Cite

@article{arxiv.2105.01738,
  title  = {Priority Promotion with Parysian Flair},
  author = {Massimo Benerecetti and Daniele Dell'Erba and Fabio Mogavero and Sven Schewe and Dominik Wojtczak},
  journal= {arXiv preprint arXiv:2105.01738},
  year   = {2021}
}
R2 v1 2026-06-24T01:46:58.478Z