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SUMMARY:A statistical physics perspective on the theory of machine learnin
 g
DTSTART;VALUE=DATE-TIME:20260415T133000Z
DTEND;VALUE=DATE-TIME:20260415T150000Z
DTSTAMP;VALUE=DATE-TIME:20260413T134036Z
UID:indico-contribution-91-355@fisindico.uniandes.edu.co
DESCRIPTION:Speakers: Bruno Loureiro (ENS Paris)\nThe past decade has witn
 essed a surge in the development and adoption of machine learning algorith
 ms to solve day-a-day computational tasks. Yet\, a solid theoretical under
 standing of even the most basic tools used in practice is still lacking\, 
 as traditional statistical learning methods are unfit to deal with the mod
 ern regime in which the number of model parameters are of the same order a
 s the quantity of data – a problem known as the curse of dimensionality.
  Curiously\, this is precisely the regime studied by Physicists since the 
 mid 19th century in the context of interacting many-particle systems. This
  connection\, which was first established in the seminal work of Elisabeth
  Gardner and Bernard Derrida in the 80s\, is the basis of a long and fruit
 ful marriage between these two fields.\n\nThe goal of this mini-course is 
 to provide an in-depth overview of these connections and a good vision of 
 the different tools available in the statistical physics toolbox\, as well
  as their scope and limitations. \n\nSyllabus:\n\n- Historical overview of
  the connections between Statistical Physics and Computer Science.\n- Mean
 -Field Models 101: Curie-Weiss Model\n- Statistical-to-Computational Gaps\
 n- The double-descent phenomena and benign overfitting (time permitting)\n
 \nBibliography:\n\nThe mini-course will the based on the following lecture
 s notes: https://brloureiro.github.io/assets/pdf/NotesPrinceton_BL.pdf\n\n
 https://fisindico.uniandes.edu.co/event/23/contributions/355/
LOCATION:Universidad Nacional Ed. 564
URL:https://fisindico.uniandes.edu.co/event/23/contributions/355/
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SUMMARY:Threeway out of equilibrium many body dynamics
DTSTART;VALUE=DATE-TIME:20260413T190000Z
DTEND;VALUE=DATE-TIME:20260413T203000Z
DTSTAMP;VALUE=DATE-TIME:20260413T134036Z
UID:indico-contribution-91-354@fisindico.uniandes.edu.co
DESCRIPTION:Speakers: Frédéric van Wijland ()\nThese three lectures will
  focus on three manners to fall out of equilibrium\, and on the many-body 
 effects that arise from the nonequilibrium nature of the dynamics. We will
  begin with systems harboring a macroscopic current (leading to long range
  correlations). Then we shall stop by systems that should be relaxing towa
 rds equilibrium\, but that fail to do so for reasons that are still under 
 investigation. And the final lecture will concern systems with no macrosco
 pic current that are nevertheless maintained out of equilibrium by a const
 ant input of energy that drives the individual motion of the particles.\n\
 n1. Out of equilibrium with a macroscopic current: Driven Systems\n     - 
 Macroscopic Fluctuation Theory\n     - The possibility of phase transition
 s in one dimension\n2. Out of equilibrium\, but lost on the way to equilib
 rium: Glasses\n     - Mode-coupling approach\n     - Infinite-dimensional 
 insight\n3. Out of equilibrium\, because that's life: Active Matter\n     
 - From one particle to many\n     - Field theories for active matter\n\nht
 tps://fisindico.uniandes.edu.co/event/23/contributions/354/
LOCATION:Universidad Nacional Ed. 564
URL:https://fisindico.uniandes.edu.co/event/23/contributions/354/
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SUMMARY:Disordered systems out of equilibrium
DTSTART;VALUE=DATE-TIME:20260413T140000Z
DTEND;VALUE=DATE-TIME:20260413T153000Z
DTSTAMP;VALUE=DATE-TIME:20260413T134036Z
UID:indico-contribution-91-353@fisindico.uniandes.edu.co
DESCRIPTION:Speakers: Leticia F. Cugliandolo (Sorbonne Université\, Paris
 )\n1. Introduction. Quenched and configurational disorder. Coarsening. Gla
 ssiness and active matter. Models and methods.\n2. Equilibrium analysis. F
 ree-energy landscapes (extensions of Ginzburg-Landau).\n3. Out of equilibr
 ium dynamics. Dynamic mean-field theory.\n\nhttps://fisindico.uniandes.edu
 .co/event/23/contributions/353/
LOCATION:Universidad Nacional de Colombia Ed. 564
URL:https://fisindico.uniandes.edu.co/event/23/contributions/353/
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