10 citations · 22 across the 10 of their papers we have counts for
10 papers
Biased Generalization in Diffusion Models
Jerome Garnier-Brun, Luca Biggio, Davide Beltrame +2
Generalization in generative modeling is defined as the ability to learn an underlying distribution from a finite dataset and produce novel samples, with evaluation largely driven…
Spontaneous and Collective Learning in a Minimal Agent-Environment Model
Sebastiano Ariosto, Jerome Garnier-Brun, Luca Saglietti +1
How can information be extracted from data without explicit guidance or rewards? We investigate this question in a minimal setting where a classifying agent is exposed to a stream…
Hydrodynamics of Cooperation and Self-Interest in a Two-Population Occupation Model
Jerome Garnier-Brun, Ruben Zakine, Michael Benzaquen
We study the hydrodynamics of a system of agents who optimize either their individual utility (self-interest) or the collective welfare (cooperation). When agents act selfishly, th…
How transformers learn structured data: insights from hierarchical filtering
Jerome Garnier-Brun, Marc Mézard, Emanuele Moscato +1
Understanding the learning process and the embedded computation in transformers is becoming a central goal for the development of interpretable AI. In the present study, we introdu…
Unlearnable Games and "Satisficing'' Decisions: A Simple Model for a Complex World
Jerome Garnier-Brun, Michael Benzaquen, Jean-Philippe Bouchaud
As a schematic model of the complexity economic agents are confronted with, we introduce the ``SK-game'', a discrete time binary choice model inspired from mean-field spin-glasses.…
Socioeconomic agents as active matter in nonequilibrium Sakoda-Schelling models
Ruben Zakine, Jerome Garnier-Brun, Antoine-Cyrus Becharat +1
How robust are socioeconomic agent-based models with respect to the details of the agents' decision rule? We tackle this question by considering an occupation model in the spirit o…
Thermodynamic bounds on correlation times
Andreas Dechant, Jerome Garnier-Brun, Shin-ichi Sasa
We derive a variational expression for the correlation time of physical observables in steady-state diffusive systems. As a consequence of this variational expression, we obtain lo…
Bounded Rationality and Animal Spirits: A Fluctuation-Response Approach to Slutsky Matrices
Jerome Garnier-Brun, Jean-Philippe Bouchaud, Michael Benzaquen
The Slutsky equation, central in consumer choice theory, is derived from the usual hypotheses underlying most standard models in Economics, such as full rationality, homogeneity, a…
Random walk diffusion simulations in semi-permeable layered media with varying diffusivity
Ignasi Alemany, Jan N. Rose, Jérôme Garnier-Brun +2
In this paper we present analytical and random walk based solutions to diffusion in semi-permeable layered media with varying diffusivity. We propose a new random walk transit mode…
A new spin on optimal portfolios and ecological equilibria
Jerome Garnier-Brun, Michael Benzaquen, Stefano Ciliberti +1
We consider the classical problem of optimal portfolio construction with the constraint that no short position is allowed, or equivalently the valid equilibria of multispecies Lotk…