LSV Seminar

The LSV seminar takes place on Tuesday at 11:00 AM. The usual location is the conference room at Pavillon des Jardins (venue). If you wish to be informed by e-mail about upcoming seminars, please contact Stéphane Le Roux and Matthias Fuegger.

The seminar is open to public and does not require any form of registration.

Past Seminars

Online Space Complexity

 Nathanaël Fijalkow
Tuesday, December 15 2015 at 11:00AM
Salle de Conférence (Pavillon des Jardins)
Nathanaël Fijalkow (University of Oxford)

In this talk, I will speak about the Online Space Complexity of languages, which is an old topic (studied by Karp, Minsky, Hartmanis and others in the 60s) that I picked up recently. The main question is the following: given a language L, how many states does an automaton need to recognise L, as a function of the input length? This question is well-understood for regular languages, which are those recognised by finite automata, so we go beyond this case and study non-regular languages. This talk will be a gentle introduction to these questions; I will present some results about the online space complexity of probabilistic languages.

Based on a forthcoming paper at LFCS'2016.

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