Sylvain Pion

Former Researcher in Computer Science in the Geometrica group

Since January 2011, I am on leave from INRIA.

Email :
Skype : spion315
Networks : LinkedIn   Plaxo   Ohloh profile for sylvainpion


I am interested in computer programming of geometric algorithms.

Mesh generation and the other algorithms developed by my co-workers from Geometrica are of particular interest, as well as any computational geometry algorithm you may find for example in CGAL.

Programming issues of interest are: the efficiency of basic certified numerical routines (the geometric predicates and constructions which are so critical to the robustness of geometric algorithms), formal proofs of algorithms, parallel algorithms and compact memory representations of data structures. I am also interested in compiler optimizations and programming languages, especially C++. Another important direction of programming is the maintainability of large code bases like CGAL, which triggers research on finding concepts with broad applicability to help code factorization and understandability, within the generic programming paradigm.


Below are some of my recent publications, and here is the complete list.

Collaborative projects


In connection to my research, I participate to the work of the following standardization committees:


Most of my developments are done around CGAL, of which I am a member of the editorial board (which I chaired from February 2006 to June 2010). Watch the general presentation video !

Program committees and editorial responsibilities


Other responsibilities


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