Search Results for author: Łukasz Szpruch

Found 7 papers, 2 papers with code

Mirror Descent-Ascent for mean-field min-max problems

no code implementations12 Feb 2024 Razvan-Andrei Lascu, Mateusz B. Majka, Łukasz Szpruch

We study two variants of the mirror descent-ascent algorithm for solving min-max problems on the space of measures: simultaneous and sequential.

Generalization Error of Graph Neural Networks in the Mean-field Regime

no code implementations10 Feb 2024 Gholamali Aminian, Yixuan He, Gesine Reinert, Łukasz Szpruch, Samuel N. Cohen

This work provides a theoretical framework for assessing the generalization error of graph classification tasks via graph neural networks in the over-parameterized regime, where the number of parameters surpasses the quantity of data points.

Graph Classification

Mean-field Analysis of Generalization Errors

no code implementations20 Jun 2023 Gholamali Aminian, Samuel N. Cohen, Łukasz Szpruch

We propose a novel framework for exploring weak and $L_2$ generalization errors of algorithms through the lens of differential calculus on the space of probability measures.

Inefficiency of CFMs: hedging perspective and agent-based simulations

1 code implementation8 Feb 2023 samuel cohen, Marc Sabaté Vidales, David Šiška, Łukasz Szpruch

We investigate whether the fee income from trades on the CFM is sufficient for the liquidity providers to hedge away the exposure to market risk.

Gradient Flows for Regularized Stochastic Control Problems

no code implementations10 Jun 2020 David Šiška, Łukasz Szpruch

This paper studies stochastic control problems with the action space taken to be probability measures, with the objective penalised by the relative entropy.

Multi-index Antithetic Stochastic Gradient Algorithm

1 code implementation10 Jun 2020 Mateusz B. Majka, Marc Sabate-Vidales, Łukasz Szpruch

In this paper, we construct a Multi-index Antithetic Stochastic Gradient Algorithm (MASGA) whose implementation is independent of the structure of the target measure and which achieves performance on par with Monte Carlo estimators that have access to unbiased samples from the distribution of interest.

Mean-Field Neural ODEs via Relaxed Optimal Control

no code implementations11 Dec 2019 Jean-François Jabir, David Šiška, Łukasz Szpruch

We develop a framework for the analysis of deep neural networks and neural ODE models that are trained with stochastic gradient algorithms.

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