Search Results for author: Yuchen Xiao

Found 13 papers, 0 papers with code

On-Robot Bayesian Reinforcement Learning for POMDPs

no code implementations22 Jul 2023 Hai Nguyen, Sammie Katt, Yuchen Xiao, Christopher Amato

Bayesian reinforcement learning (BRL), thanks to its sample efficiency and ability to exploit prior knowledge, is uniquely positioned as such a solution method.

reinforcement-learning

Sequential Fair Resource Allocation under a Markov Decision Process Framework

no code implementations10 Jan 2023 Parisa Hassanzadeh, Eleonora Kreacic, Sihan Zeng, Yuchen Xiao, Sumitra Ganesh

We propose a new algorithm, SAFFE, that makes fair allocations with respect to the entire demands revealed over the horizon by accounting for expected future demands at each arrival time.

Decision Making Fairness

Macro-Action-Based Multi-Agent/Robot Deep Reinforcement Learning under Partial Observability

no code implementations20 Sep 2022 Yuchen Xiao

Empirical results demonstrate the superiority of our approaches in large multi-agent problems and validate the effectiveness of our algorithms for learning high-quality and asynchronous solutions with macro-actions.

Decision Making Decision Making Under Uncertainty +3

Asynchronous Actor-Critic for Multi-Agent Reinforcement Learning

no code implementations20 Sep 2022 Yuchen Xiao, Weihao Tan, Christopher Amato

Synchronizing decisions across multiple agents in realistic settings is problematic since it requires agents to wait for other agents to terminate and communicate about termination reliably.

Decision Making Multi-agent Reinforcement Learning +3

A Deeper Understanding of State-Based Critics in Multi-Agent Reinforcement Learning

no code implementations3 Jan 2022 Xueguang Lyu, Andrea Baisero, Yuchen Xiao, Christopher Amato

Centralized Training for Decentralized Execution, where training is done in a centralized offline fashion, has become a popular solution paradigm in Multi-Agent Reinforcement Learning.

Multi-agent Reinforcement Learning reinforcement-learning +1

Local Advantage Actor-Critic for Robust Multi-Agent Deep Reinforcement Learning

no code implementations16 Oct 2021 Yuchen Xiao, Xueguang Lyu, Christopher Amato

By using this local critic, each agent calculates a baseline to reduce variance on its policy gradient estimation, which results in an expected advantage action-value over other agents' choices that implicitly improves credit assignment.

Multi-agent Reinforcement Learning Policy Gradient Methods +2

Asynchronous Multi-Agent Actor-Critic with Macro-Actions

no code implementations29 Sep 2021 Yuchen Xiao, Weihao Tan, Christopher Amato

Many realistic multi-agent problems naturally require agents to be capable of performing asynchronously without waiting for other agents to terminate (e. g., multi-robot domains).

Decision Making Policy Gradient Methods

Contrasting Centralized and Decentralized Critics in Multi-Agent Reinforcement Learning

no code implementations8 Feb 2021 Xueguang Lyu, Yuchen Xiao, Brett Daley, Christopher Amato

Centralized Training for Decentralized Execution, where agents are trained offline using centralized information but execute in a decentralized manner online, has gained popularity in the multi-agent reinforcement learning community.

Misconceptions Multi-agent Reinforcement Learning +2

Adaptive directional Haar tight framelets on bounded domains for digraph signal representations

no code implementations27 Aug 2020 Yuchen Xiao, Xiaosheng Zhuang

Based on hierarchical partitions, we provide the construction of Haar-type tight framelets on any compact set $K\subseteq \mathbb{R}^d$.

Macro-Action-Based Deep Multi-Agent Reinforcement Learning

no code implementations18 Apr 2020 Yuchen Xiao, Joshua Hoffman, Christopher Amato

In real-world multi-robot systems, performing high-quality, collaborative behaviors requires robots to asynchronously reason about high-level action selection at varying time durations.

Decision Making Decision Making Under Uncertainty +3

Learning Multi-Robot Decentralized Macro-Action-Based Policies via a Centralized Q-Net

no code implementations19 Sep 2019 Yuchen Xiao, Joshua Hoffman, Tian Xia, Christopher Amato

In many real-world multi-robot tasks, high-quality solutions often require a team of robots to perform asynchronous actions under decentralized control.

Multi-agent Reinforcement Learning

Near-Optimal Adversarial Policy Switching for Decentralized Asynchronous Multi-Agent Systems

no code implementations17 Oct 2017 Trong Nghia Hoang, Yuchen Xiao, Kavinayan Sivakumar, Christopher Amato, Jonathan How

The practicality of existing works addressing this challenge is limited to only small-scale synchronous decision-making scenarios or a single agent planning its best response against a single adversary with fixed, procedurally characterized strategies.

Decision Making

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