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Research map / Multi-agent systems and games / Cooperative multi-agent RL

SMIX(λ): Enhancing Centralized Value Functions for Cooperative Multi-Agent Reinforcement Learning

AAAI 2020 · Multi-agent systems and games › Cooperative multi-agent RL · approach: Value factorization · 16 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use IS-free off-policy SARSA(lambda) lambda-return CVF estimation instead of one-step Q-learningQMIX · SMAC 3s5ztest win rate (%): 16 -> 61Helped
use lambda-return CVF estimation instead of one-stepQMIX · SMAC 3s_vs_3ztest win rate (%): 15 -> 84Helped
use lambda-return CVF estimation instead of one-stepQMIX · SMAC 3mtest win rate (%): 95 -> 99Helped
replace VDN CVF estimation with SMIX(λ) procedure (ablation)VDN · SMAC 3s5ztest win rate (%): 1 -> 29Helped
replace VDN CVF estimation with SMIX(λ) procedure (ablation)VDN · SMAC 2s3ztest win rate (%): 64 -> 78Helped
replace QTRAN CVF estimation with SMIX(λ) procedure (ablation)QTRAN · SMAC 3mtest win rate (%): 29 -> 84Helped
replace CVF estimation on scenarios where the original method fails entirely (ablation)COMA/QTRAN/IQL · SMAC 3s5ztest win rate (%): 0 -> 0No clear effect
use lambda=0.8 instead of lambda=1 (MC return) or lambda=0 (one-step) (ablation)SMIX(λ) · SMAC 3s5z and 2s_vs_1sctest win rate (%)Helped
include off-policy data (buffer 1500) instead of on-policy only (buffer 4) (ablation)SMIX(λ) · SMAC 3s5ztest win rate (%)Helped
increase replay buffer size from 1500 to 5000 (ablation)SMIX(λ) · SMAC 3s5z and 2s_vs_1sctest win rate (%)Hurt

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