Joseph Le Roux

I am an Associate Professor, working on Natural Language Processing at LIPN, USPN.

Main interests

  • Natural Language Syntax and Semantics,
  • Parsing, Grammar Induction,
  • Machine Learning, Structured Prediction, Optimization
  • Finite State Morphology, Type Theory



leroux -AT-
Phone: +33 (0) 1 49 40 32 13
Fax Number: +33 (0) 1 48 26 51 12
bureau A101 LIPN - CNRS UMR 7030
Université Paris-Nord - 99, av. J-B. Clément
93430 Villetaneuse FRANCE


Ghazi Felhi
Ph.D. Candidate (with Adeline Nazarenko and Djamé Seddah) Started Nov. 2019, Unuspervised Disentanglement with VAEs
Nicolas Floquet
Ph.D. Candidate (with Thierry Charnois and Nadi Tomeh) Started Oct. 2022, Efficient Transformers and Parsing
Alexandre Schulz
Ph.D. Candidate (with Roberto Wolfler-Calvo, Mathieu Lacroix and Emiliano Traversi) Started Oct. 2022, Primal and Dual Neural-based Heuristics for MIP solving


Caio Corro
Ph.D. Candidate (with Adeline Nazarenko) Nov. 2014-Mar. 2018, Lagrangian Relaxation Methods for Deep Syntax.
Xudong Zhang
Ph.D. Candidate (with Thierry Charnois) Oct. 2018-May 2022, Energy Networks and Higher-Order Parsing.

What I do

Since 2011
Associate Professor in the RCLN team at LIPN, Université Paris 13.

What I used to do

Post-Doctoral Researcher in the SEQUOIA project in the team TALEP, LIF, Université Aix-Marseille 2
Post-Doctoral Researcher in probabilistic parsing and grammar inference in the LORG Project at NCLT, Dublin, Ireland.
Worked as 'ATER' (TA / assistant lecturer) in IUT Charlemagne, Nancy, France.
PhD under the supervision of Pr. Guy Perrier (Calligramme team in LORIA lab, Nancy, France). I have worked on the modeling of coordination and its implementation in Interaction Grammars