CAMMARL: Conformal Action Modeling in Multi Agent Reinforcement Learning

Fuente: arXiv
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Main Authors: Gupta, Nikunj, Nath, Somjit, Kahou, Samira Ebrahimi
Format: Preprint
Published: 2023
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author Gupta, Nikunj
Nath, Somjit
Kahou, Samira Ebrahimi
author_facet Gupta, Nikunj
Nath, Somjit
Kahou, Samira Ebrahimi
contents Before taking actions in an environment with more than one intelligent agent, an autonomous agent may benefit from reasoning about the other agents and utilizing a notion of a guarantee or confidence about the behavior of the system. In this article, we propose a novel multi-agent reinforcement learning (MARL) algorithm CAMMARL, which involves modeling the actions of other agents in different situations in the form of confident sets, i.e., sets containing their true actions with a high probability. We then use these estimates to inform an agent's decision-making. For estimating such sets, we use the concept of conformal predictions, by means of which, we not only obtain an estimate of the most probable outcome but get to quantify the operable uncertainty as well. For instance, we can predict a set that provably covers the true predictions with high probabilities (e.g., 95%). Through several experiments in two fully cooperative multi-agent tasks, we show that CAMMARL elevates the capabilities of an autonomous agent in MARL by modeling conformal prediction sets over the behavior of other agents in the environment and utilizing such estimates to enhance its policy learning.
format Preprint
id arxiv_https___arxiv_org_abs_2306_11128
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle CAMMARL: Conformal Action Modeling in Multi Agent Reinforcement Learning
Gupta, Nikunj
Nath, Somjit
Kahou, Samira Ebrahimi
Machine Learning
Multiagent Systems
Before taking actions in an environment with more than one intelligent agent, an autonomous agent may benefit from reasoning about the other agents and utilizing a notion of a guarantee or confidence about the behavior of the system. In this article, we propose a novel multi-agent reinforcement learning (MARL) algorithm CAMMARL, which involves modeling the actions of other agents in different situations in the form of confident sets, i.e., sets containing their true actions with a high probability. We then use these estimates to inform an agent's decision-making. For estimating such sets, we use the concept of conformal predictions, by means of which, we not only obtain an estimate of the most probable outcome but get to quantify the operable uncertainty as well. For instance, we can predict a set that provably covers the true predictions with high probabilities (e.g., 95%). Through several experiments in two fully cooperative multi-agent tasks, we show that CAMMARL elevates the capabilities of an autonomous agent in MARL by modeling conformal prediction sets over the behavior of other agents in the environment and utilizing such estimates to enhance its policy learning.
title CAMMARL: Conformal Action Modeling in Multi Agent Reinforcement Learning
topic Machine Learning
Multiagent Systems
url https://arxiv.org/abs/2306.11128