Complex networks and cognitive systems

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Members and main research interests

• Neural networks (formal neural networks, modeling in computational neurosciences:
  modeling memory; sensory coding and signal processing).

  Nicolas Brunel

  Jean-Pierre Nadal

  Didier Herschkowitz (PhD student)

• Complex adaptive systems (immunology, economy, sustainable development)

  Gerard Weisbuch

  Gérard Boudjmea (post-doc)

  Olivier Chenevez (student)

• Experimental psychophysics

  Jacques Ninio

• Interface physics-biology

  Gerard Toulouse
  (presently at Laboratoire de Physique Theorique de l'ENS)

• Collaborators : see below.

• Former members

  Guillemette Duchateau-Nguyen (post-doc)

  Filipe Aires

Nicolas Brunel

Guillemette Duchateau-Nguyen

Jean-Pierre Nadal

Jacques Ninio (list of publications not yet available on the web)

Gerard Toulouse (list of publications not yet available on the web)

Gerard Weisbuch

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• G. Weisbuch
  Introduction a la dynamique des systemes complexes
  InterEditions/CNRS, 1989 (in French)
  English version:
  Complex systems dynamics
  Santa Fe Institute Publications, Lecture Notes Volume II, 1991

• J.-P. Nadal
  Reseaux de neurones : de la physique a la psychologie
  Collection 2ai, Armand Colin, 1993 (in French)

• J. Ninio
  Stereomagie
  Editions du Seuil, 1994 (in French)

• H. Gutfreund and G. Toulouse
  Biology and computation: a physicists' choice
  World Scientific, 1994

• J. Ninio
  L'empreinte des sens. Perception, memoire, langage
  Troisieme edition, remise a jour. Odile Jacob, 1996 (in French)

• M. Mézard, G. Parisi & M. Virasoro
  Spin-glasses theory and beyond
  World Scientific, 1988
  [the "beyond" includes a part on formal neural networks]
  

• Bienenstock E., Fogelman F. and Weisbuch G.
  Disordered systems and biological organization,
  Springer, Berlin, 1986

• Perelson A. and Weisbuch G.
  Theoretical and Experimental Insights into Immunology,
  Nato ASI series H66, Springer, 1992

• Livi R., Nadal J.-P. and Packard N.
  Complex Dynamics,
  Les Houches Series, Nova Science Pub., New-York, 1993

• Grassberger P. and Nadal J.-P.
  From Statistical Physics To Statistical Inference and Back,
  Nato ASI series C428, Kluwer Acad. Pub., Dordrecht, 1994.

Other conferences and institutes (proceedings not available)

• 24-27 Janvier 1989 E.N.S, Paris : Physics, Mathematics and Cognitive Neurosciences
  organized by J.-P. Changeux, S. Dehaene, J. Mehler, J.-P. Nadal and G. Weisbuch

• 17 avril-31juillet 1990. Torino, Italie : Institute on Complex Dynamical Systems
  Organization : M. Droz, P. Grassberger, R. Livi, J.-P. Nadal and N. Packard.

Proceedings in preparation

• Automates cellulaires et fonctions couplees sur reseau appliques aux systemes ecologiques
  Centre de Physique des Houches, September 30 - October 5, 1996.
  Organization : A. Franc, P.-H. Gouyon and G. Weisbuch.

• Seminar of the team, informal and irregular, on Thursdays at 11:30 a.m.
• Seminar on sustainable development on Mondays at 5 p.m.

Teaching activities

• Lectures on neural networks (in French). for the D.E.A. de Sciences Cognitives (university Paris 6)
• Participation to the organization of a short course neuronal networks for the Magistere de Biologie-Biochimie at ENS
• Participation to the organization of lectures for the first year students at Ens:
  • option Sciences de la Cognition
  • option Environnement

Cooperations with other laboratories at ENS

Coordination on Cognitive Sciences

Environment unit.

Library on neural networks

Library on neural networks and similar subjects, in collaboration with the labs
AnimatLab of ENS and Laboratoire d'Electronique at ESPCI
[Bibliothèque Cognisciences ENS-ESPCI,
c/o Laboratoire d'Electronique, ESPCI, 10, rue Vauquelin - 75005 Paris

This library is now part of the library at RISC.

International collaborations

• Nestor Parga and his group at the Depto de Física Teórica, U.A.M., Madrid
  Information processing in neural networks
• Daniel Amit, Rome and Jerusalem
  Attractor neural networks
• Istituto Superiore di Sanita, Rome
  Natural vision and image analysis
• Santa Fe Institute
  Complex systems dynamics

European networks and programs

• European project IMAGES (Improving Agri-Environmental Policies : a Simulation Approach to the Role of the Cognitive Properties of Farmers and Institutions, project FAIR3 PL96-2092).
• French-Spanish program Picasso 1994-1996
• European Network Statistical Physics of Collective Behaviour in Disordered Systems and Information Processing (CHRX-CT92-0063)
• European network (the team is associate node of NEuroNet France)

French collaborations

• College de France (Pr. A. Berthoz) and AnimatLab, Ens (Dr. J.-A. Meyer)
  Hippocampus modeling
• Alan Kirman, GREQAM (EHESS and Universite d'Aix-Marseille III, Marseille)
  Market organization and cognitive aspects in economy
• LAFORIA, ParisVI : Equipe Connexionniste (Dr. F. d'Alche-Buc)
  
• K. O'Regan, Labo de psychologie experimentale, Paris
  Psychophysics
• Laboratoires d'Electronique Philips S.A.S.
  Consulting activity

Networks and programs
Activities supported by the GIS Sciences de la cognition :

• Regional Network CogniSeine
• Participation to the direction comitee of the RISC (Relais d'Information sur les Sciences de la Cognition en region parisienne).
• Collaborations supported by the GIS Sciences de la cognition:
  • Multimodal integration for path representation: neurobiological bases and modeling
    (directors Pr. A Berthoz and I. Israel)
  • Distributed neuronal representations and odor perception
    (director Dr C. Masson, LNCI)

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