### Florent Krzakala

#### From Statistical physics to computer science and back...

## Hot News!!

* My long-time collaborator Lenka Zdeborova is looking for Oustanding post-docs to study (deep) learning problems.

* I recently founded a start-up called LightOn, where we aim to solve machine learning problems (litteraly) at the speed of light!

* I am organizing a workshop in Les Houches next winter with Lenka Zdeborova on Statistical Physics, Learning, Inference and Networks.

*
Our book
on "Statistical Physics, Optimization, Inference, and
Message-Passing Algorithms" that contains all the lectures
from
the 2014
Les Houches School has been published by Oxford
Press.

* Our review on Statistical Physics of Inference is published in Advances in Physics.

## Research Interests

* Statistical Inference * Inverse problems on graphs * Statistical physics of disordered systems * Quantum Phase Transitions * Constraint Optimization Problems (e.g. Graph Coloring and Satisfiability) * Coding and information theory * Neural networks * Machine learning

## Education and Employment

Junior member of the Institut Universitaire de France,
2015-...

Visiting scientist in
the Simons
institute in Berkeley, 2016

Professor UPMC and Researcher at Ecole Normale Superieure, Paris, 2013-present

Associate professor (Maître de conférences) at ESPCI ParisTech, 2004-2013

Postdoctoral Fellow, Università di Roma la Sapienza, 2002-2004

Ph.D. in Physics, LPTMS, Université d'Orsay Paris-Sud, 1999-2002

A detailed CV (pdf) last updated 02/13/15

Some of my seminars in video on youtube.

## Selected publications

* Variational free energies for compressed sensing, F
Krzakala, A Manoel, EW Tramel, L
Zdeborova Information Theory (ISIT), 2014 IEEE
International Symposium on, 1499-1503

* Spectral
redemption: clustering sparse networks , F. Krzakala,
C. Moore, E. Mossel, J. Neeman, A. Sly, L. Zdeborova and
P. Zhang
Proc. Natl. Acad. Sci. 110, 20935 2030 (2013)

* Statistical-Physics-Based Reconstruction in Compressed Sensing,
F. Krzakala, M. Mézard, F. Sausset, Y. F. Sun and
L. Zdeborova,
Phys. Rev. X
2, 021005 (2012)

* Inference in particle tracking experiments by passing messages
between images Tracking particles by passing messages between images,
M. Chertkov, L. Kroc, F. Krzakala, M. Vergassola and L. Zdeborova,
Proc. Natl. Acad. Sci. 107,
7663 2010

* Simple Glass Model and their Quantum Annealing, T. Jorg,
F. Krzakala, J. Kurchan and A. C. Maggs,
Phys. Rev. Lett. 101, 147204 (2008)

* Gibbs states and the set of solutions of random constraint satisfaction problems, F. Krzakala, A. Montanari, F. Ricci-Tersenghi, G. Semerjian and L. Zdeborova,
Proc. Natl. Acad. Sci. 104, 10318 2007

## Contact

Professor Florent Krzakala

University Pierre et Marie Curie

Lab. de Physique Statistique

ENS and UMR CNRS 8550

Tel: +33 (0)1 44 32 25 82

Fax: +33 (0)1 40 79 47 31

Ecole Normale Superieure

24 Rue Lhomond

75231 PARIS Cedex 05

florent.krzakala@ens.fr

To come and see me

ENS is in the center of
Paris, close to the
Pantheon. My office is L284 in the Physics Departement (second floor).