Laurent Simon

Full Professor
(Bordeaux INP / Univ. Bordeaux / LaBRI)

Most recent news

(list of all news)

Maxime Fuccellaro's PhD Thesis

(25 November 2024)

Accompanying a student to the achievement of a Phd is always an adventure. With Maxime Fuccellaro, whom I co-supervised with Akka Zemmari, it was an opportunity to discover a new...


Feedback on the LLM Afternoon by the Trustworthy AI Chair

(20 November 2024)

Last Wednesday, November 20th, as part of the activities of the Trustworthy AI Chair, we offered two hours covering the main themes related to LLMs, at ENSEIRB-MATMECA. You can find...


Jury at HackRobot Hackathon

(17 November 2024)

A Sunday afternoon watching robots and innovations everywhere? I had the pleasure of being invited to be a jury member at the Hack1Robo organized by INRIA Bordeaux South West. From...


Alexis Juven's PhD Thesis

(12 November 2024)

One of the ways to realize how AI permeates all areas of society is to measure the extent of its applications. I was happy to be the reviewer of Alexis...


Knowledge Dissemination Award at the Foundation Gala

(07 November 2024)

For more than two years now, with the Trustworthy AI Chair, I have been invited to give talks about the definition of artificial intelligence, what we expect from it, and...

Explanations during a presentation

Short Presentation

I am a University Professor at the engineering school ENSEIRB-MATMECA of Bordeaux INP, and I conduct my research in the Formal Methods and Models, M2F department at the Bordeaux Computer Science Research Laboratory (laBRI) at the University of Bordeaux, since 2013. Since 2024, I am also one of the 180 regional councilors at the CESER of Nouvelle-Aquitaine, the second regional chamber (qualified member, economic commission, 2024-2030 term).

Since 2021, I am in charge of the Computer Science department of the ENSEIRB-MATMECA Engineering School, with more than 300 students in the department and more than thousands students for the whole school. The ENSEIRB-MATMECA is the largest engineering school member of the Bordeaux INP group.

⊆ Computer Science Dep. ⊆ ENSEIRB-MATMECA ⊆ Bordeaux-INP ⊆ INP ⊆

For more than two years now, with the Trustworthy AI Chair, I have been invited to give talks about the...

We are very pleased to announce the final acceptance (and publication) of an article in Nature npj Systems Biology and...

Les Echos Judiciaires is a regional newspaper that has existed since 1848 and is authorised by the prefect to publish...

Drones during the celebration of the 100 years of ENSEIRB-MATMECA

I am pleased to teach at the National Polytechnical Institute of Bordeaux, member of the national engineering school network INP). Of course, I’m teaching in the ENSEIRB-MATMECA engineering school, member of Bordeaux-INP, and in the computer Science department.

Picture of the Bordeaux INP Engineering School

Amongst the important tasks I am involved in, I spend a lot of time with the following activities:

(Previously, I was member of the LRI laboratory in the University of Orsay Paris 11, in the Artificial Intelligence and Inference System group (IASI))

Research Topics

Picture of the LaBRI Computer Science Laboratory

My main research activities are conducted at the LaBRI laboratory (see picture above). My interests are on propositional-based reasoning, SAT solving and
efficient Prime Implicates generation / Knowledge Base Compilation with a strong appetite on experimental study of AI tools (SAT Solvers essentially). I used to work
on decentralized approaches of some of these topics (reasoning on top of P2P and social networks, and ensuring diagnosability of designed systems). Since a few years, I am working on trustworthy AI, especially in the context of critical decisions or when an explanation is needed. To tackle these problems, logic / formal methods will be essentials.

About the Glucose SAT solver

Medals of our Glucose SAT Solver in the 2017 competition

Glucose is a SAT solver based on a particular scoring scheme for the clause learning mechanism, based on the paper Gilles Audemard and I wrote at IJCAI’09. Solver’s name is a contraction of the concept of “glue clauses”, a particular kind of clauses that glucose detects and preserves during search. Glucose is heavily based on Minisat, so please do cite Minisat also if you want to cite Glucose.

There is a dedicated page for the solver. In 2022, we decided to reboot it with the glucose 5.0 version.

What is SAT?

SAT is a fundamental problem of computer science that, intuitively, captures all the easiest of the hard problems. Hard problems mean problem that cannot be solved efficiently (you'll need more time than the universe had on large problems!). If you want to read more about it, why not taking your with the Wikipedia page about SAT ?