The aim of this workshop is to bring together mathematicians and computer scientists around some talks on recent results in statistics and machine learning. Various topics will be presented, among which network reconstruction, natural language processing, extreme events, topological data analysis, online learning and non parametric estimation for random walks in random environment.

Organised by : Sylvain ARLOT and Guillaume CHARPIAT

Invited speakers :

Alexandre Allauzen (Université Paris-Sud, LIMSI)
Frédéric Chazal (INRIA Saclay)
Isabelle Guyon (Université Paris-Sud, LRI)
Matthieu Lerasle (CNRS, LMO)
Vianney Perchet (CMLA)
Anne Sabourin (Télécom ParisTech)

 

The presentations will be in French, with slides (and potentially questions) in English.

 

Cette conférence a bénéficié d’un financement public Investissement d’avenir, référence ANR-11-LABX-0056-LMH, LabEx LMH (programme math-STIC).

 

As part of the IHES-Huawei partnership, this one-day workshop is organised by the Huawei's Mathematical and Algorithmic Sciences Lab jointly with IHES and aims at creating scientific exchanges around mathematical topics that are essential for the development and innovation of the ICT. The topic of this year is on the potential of the mathematics of Artificial Intelligence for breakthrough results in the ICT field

 

The aim of this workshop is to bring together mathematicians and computer scientists around some talks on recent results in statistics and machine learning. Various theoretical topics in machine learning, statistics and probability theory will be presented as well as applications to social and ecological networks and brain mapping.

Registration is free and open until Friday 12th.

Organised by : Pierre Alquier et Guillaume Charpiat
with support from : GT Deep Net & GT Pasadena

Invited speakers :

Romain Couillet (Centrale-Supéléc)
Marco Cuturi (ENSAE ParisTech)
Sophie Donnet (INRA)
Anna Korba (Telecom ParisTech)
James Ridgway (Agro ParisTech)
Bertrand Thirion (INRIA)

The presentations will be in French, with slides (and potentially questions) in English.

This workshop is funded by Labex DigiCosme (project ANR-11-LABEX-0045-DIGICOSME) operated by ANR as part of the program « Investissement d'Avenir'' Idex Paris-Saclay (ANR-11-IDEX-0003-02).

 

La journée en l’honneur de Gretchen et Barry Mazur a pour origine la création de la chaire triennale « Gretchen et Barry Mazur » grâce à un don de William Hearst III.  Le mathématicien Alexander Goncharov est le premier titulaire de la chaire. Plusieurs exposés dans des thématiques proches des travaux de Barry Mazur seront proposés lors de cette journée inaugurale.

This one-day conference in honor of Gretchen and Barry Mazur originated with the creation of the triennal Chair « Gretchen and Barry Mazur », thanks to a gift from William Hearst III.  The mathematician Alexander Goncharov is the first holder of the Chair. Several presentations in thematics related to Barry Mazur’s work will be proposed.

Mini-cours

Takeshi Saito — 斎藤毅 (Université de Tôkyô —東京大学)

Conférenciers invités

Lei Fu —  扶磊 (Université de Nankai — 南开大学)
Luc Illusie (Université Paris-Sud)
Matthew Morrow (Université de Bonn — Universität Bonn)
Sachio Ohkawa — 大川幸男 (Université de Tôkyô — 東京大学)
Thomas Zink (Université de Bielefeld — Universität Bielefeld)

Conférence du programme ANR Théorie de Hodge p-adique et Développements (ThéHopaD)

This first joint workshop marks the donation between Nokia corporation and the Institut des Hautes Etudes Scientifiques. To celebrate this event we will have two excellent talks which will indirectly reminisce the riches heures of the Bell Laboratories (now Bell Labs part of Nokia corporate) which has now a strong settlement in Paris Saclay campus. Nokia Bell Labs is among the largest and also the oldest private research laboratory in the world and maybe the only one delivering a continuous stream of impressive scientific discoveries and theoretical contributions since one century.

The first talk will be by professor Alain Aspect of Institut d’Optique. Prof Aspect is wordwide known as the physicist who has built the first experimental confirmation of photon quantum entanglement theory. His contribution solved the famous Einstein Podolski Rosen paradox and led to new major perspectives in telecommunication and encryption. This is a way to look back on the major contributions of Bell Labs in quantum technology such as the transistor invented in 1948, and to look forward to quantum computing and communication.

The second talk will be by professor Sergio Verdu of Princeton University. Prof Verdu is the recipient of the Shannon Award in 2007 for his seminal contributions on information theory, in particular in data compression and transmission optimization when time and capacity are critical. Of course his talk will reminisce the history of the Information Theory, formulated in 1948 by Claude Shannon in Bell Labs, but his contributions bring a bridge toward the coming of the new generations of high performance wireless communications.

Organisateurs : Philippe JACQUET (Nokia – FR/Paris-Saclay), Emmanuel ULLMO (IHES)

« Groupes, géométrie et analyse », une conférence en l’honneur d’Alain Valette pour ses 60 ans

 

Conférenciers :

Goulnara ARZHANTSEVA (University of Vienna)
Bachir BEKKA (Université de Rennes 1)
Pierre-Emmanuel CAPRACE (Université catholique de Louvain)
Alain CONNES (Collège de France & IHES)
Ana KHUKHRO (Université de Cambridge)
Georges SKANDALIS (IMJ-PRG)
Stefaan VAES (KU Leuven)
Karen VOGTMANN (University of Warwick)

 

Organisation:

Indira CHATTERJI (Univ. Nice Sophia Antipolis)
Yves DE CORNULIER (Université Lyon 1)
Soyoung MOON (Université de Bourgogne, Dijon)
Yves STALDER (Université Blaise Pascal, Clermont-Ferrand)
Romain TESSERA(Univ. Paris-Sud 11)

 

 

 

As part of the IHES-Huawei partnership, this one-day workshop is organised by the Huawei's Mathematical and Algorithmic Sciences Lab jointly with IHES and aims at creating scientific exchanges around mathematical topics that are essential for the development and innovation of the ICT. The topic of this year is on the potential of the mathematics of Artificial Intelligence for breakthrough results in the ICT field

 

Resurgence in Mathematics and Physics

The aim of the conference is to facilitate an interaction between mathematicians and physicists interested in the phenomenon of resurgence, when apparently divergent series correspond to germs of analytic functions in sectors via Borel summation.

We hope that such interaction will bring new ideas in both subjects explaining e.g. analyticitity with respect to various perturbative parameters in physics, convergence of instanton corrections in symplectic topology,  the role of the wall-crossing formulas in resurgence, etc.
 

List of speakers:

         Jørgen E. Andersen (Centre for Quantum Geometry of Moduli Spaces, Aarhus University),
         Philip Boalch (CNRS & Université Paris-Sud Orsay),
         Olivia Dumitrescu (University Central Michigan)
         Gerald V. Dunne (University of Connecticut),
         Jean Écalle (Université Paris-Sud Orsay),
         Bertrand Eynard (IPhT CEA Saclay & IHES),
         Toshiaki Fujimori (Keio University),
         Stavros Garoufalidis (Max-Planck Institute for Mathematics),
         Sergei Gukov (Caltech Pasadena),
         Mikhail Kapranov (Kavli & IPMU),
         Maxim Kontsevich (IHES),
         Marcos Marino (University of Geneva),
         Takuro Mochizuki (RIMS & Kyoto University),
         Jean-Pierre Ramis (Université Paul Sabatier),
         David Sauzin (CNRS-IMCCS),
         Ricardo Schiappa (University of Lisbon),
         Carlos Simpson (Université Nice-Sophia-Antipolis),
         Yan Soibelman (Kansas State University), 
         Mithat Ünsal (NC State University),
         André Voros (IPhT CEA Saclay),

Organising Committee:
         Maxim Kontsevich (IHES),
         Yan Soibelman (Kansas State University),

                

avec le soutien de la FMJH                                          

Marcel Berger greatly contributed to mathematics, through his own publications, for example on holonomy groups, symmetric spaces, curvature pinching and the sphere theorem, spectral geometry or systolic geometry. His influence goes far beyond his research papers. His books and surveys have inspired not only his students, but a much broader audience. Important features of Marcel Berger's mathematical heritage are also his seminar and his influence on the round tables organized by his friend Arthur L. Besse. Marcel Berger's Riemannian geometry seminar held at the Universite Paris VII in the nineteen-seventies and eighties, hosted lectures by both reputable mathematicians and young researchers. For the participants, it was a unique place for lively and informal mathematical discussions and exchanges, as well as inspiration.

AMS Notices is running a memorial article in the December issue, which is freely available online at
http://www.ams.org/publications/journals/notices/201711/rnoti-p1285.pdf
Editor's Note: Claude LeBrun has kindly assembled this memorial for Marcel Berger.

List of speakers:

Simon BRENDLE (Columbia University)
Robert BRYANT (Duke University)
Yaiza CANZANI GARCIA (University of North Carolina)
Gilles CARRON (Université de Nantes)
Jeff CHEEGER (Courant Institute of Mathematical Sciences)
Tobias COLDING (MIT)
Karsten GROVE (Notre Dame University)
Colin GUILLARMOU (CNRS and Université Paris-Sud)
Ursula HAMENSTÄDT (Rheinische Friedrich-Wilhelms-Universität Bonn)
Dominique HULIN (Université Paris-Sud)
Bruce KLEINER (Courant Institute of Mathematical Sciences)
Blaine LAWSON (Stony Brook University)
André NEVES (University of Chicago)
Dorothee SCHÜTH (Humboldt-Universität zu Berlin)
Robert YOUNG (Courant Institute of Mathematical Sciences)

Organising Committee:

Pierre BÉRARD (Institut Fourier, Grenoble)
Gérard BESSON (CNRS & Université Grenoble Alpes)
Pierre PANSU (Université Paris-Sud)

 

Scientific Committee:

Werner BALLMANN (Max Planck Institute for Mathematics)
Lionel BÉRARD BERGERY (Université de Lorraine)
Jean-Pierre BOURGUIGNON (CNRS & IHES)
Yves COLIN de VERDIÈRE (Université Grenoble Alpes)
Mikhail GROMOV (IHES)
Jacques LAFONTAINE (Université de Montpellier)

 

 

 

The workshop will address fundamental features that determine the efficiency and control of information flow on directed networks,information retrieval, including also such fundamental properties of Google matrix as the fractal Weyl law, Anderson localization transitionfor Google matrix eigenstates.

The highlights and future developments of this research fieldwill be analyzed 20 years after the seminal article of Brin and Page (1998).

*-Keywords: Markov chains, complex networks, Google matrix,  information and financial flows, Wikipedia and cancer networks, recommender systems

Organisers:

   Andras Benczur (MTA SZTAKI Budapest)
   Dima Shepelyansky (CNRS-Univ. Paul Sabatier, Toulouse)
   Emmanuel Ullmo (IHES)

Scientific Advisory Board:

   Andras Benczur,
   Misha Gromov (IHES)
   Maxim Kontsevich (IHES)
   Dima Shepelyansky

List of speakers includes:

   Paolo BOLDI (Universita di Milano, IT)
   Jean-Philippe BOUCHAUD (CFM, Paris, FR)
   Sergey DOROGOVTSEV (University of Aveiro, PT)
   Leonardo ERMANN (Comisión Nacional de Energía Atómica, AR)
   Klaus FRAHM (Université de Toulouse, FR)
   Katia JAFFRES-RUNSER (IRIT, INPT-ENSEEIHT, Toulouse, FR)
   Ravi KUMAR (Google CA, USA)
   Jose LAGES (Institut UTINAM, Besançon, FR)
   Yann LECUN (Facebook AI Research, US)
   Matteo MARSILI (ICTP Trieste, IT)
   Stéphane NONNENMACHER (Université Paris-Sud, FR)
   Robert PALOVICS (Hungarian Academy of Sciences, HU)
   Lior ROKACH (Ben-Gurion University of the Negev, IL)
   Jean-Jacques SLOTINE (MIT, US)
   Andrew TOMKINS (Google CA, USA)
   Piet VAN MIEGHEM ( Delft University of Technology , NL)
   Andrey ZINOVYEV (Institut Curie, FR)

 

Workshop Quantum Gravity in Paris­­­ Quantum LPT, Orsay – 17-21 mars 2014

The workshop « Quantum Gravity in Paris 2014 » is the fourth in a regular series that aims at stimulating exchanges between different approaches to quantum gravity in all its aspects.

This year’s emphasis is on the fundamental definition of the theory and its mathematical aspects, rather than physical applications.