no code implementations • 15 Feb 2021 • Antoine Amarilli, Louis Jachiet, Charles Paperman
We show that the problem is in O(log log |w|) for languages in an algebraically-defined, decidable class QSG, and that it is in O(1) for another such class QLZG.
Formal Languages and Automata Theory Data Structures and Algorithms
no code implementations • 3 Jun 2019 • Michael Benedikt, Pierre Bourhis, Louis Jachiet, Michaël Thomazo
Data integration systems allow users to access data sitting in multiple sources by means of queries over a global schema, related to the sources via mappings.