TD-MPC2: Scalable, Robust World Models for Continuous Control

By Nicklas Hansen, Hao Su, Xiaolong Wang. International Conference on Learning Representations, 2023

506 citations recorded by the source corpus.

TD-MPC is a model-based reinforcement learning (RL) algorithm that performs local trajectory optimization in the latent space of a learned implicit (decoder-free) world model. In this work, we present TD-MPC2: a series of improvements upon the TD-MPC algorithm. We demonstrate that TD-MPC2 improves significantly over baselines across 104 online RL tasks spanning 4 diverse task domains, achieving consistently strong results with a single set of hyperparameters. We further show that agent capabilities increase with model and data size, and successfully train a single 317M parameter agent to perform 80 tasks across multiple task domains, embodiments, and action spaces. We conclude with an account of lessons, opportunities, and risks associated with large TD-MPC2 agents. Explore videos, models, data, code, and more at https://tdmpc2.com

Subfields: Control and Systems Engineering, Management Science and Operations Research

View Paper: https://www.semanticscholar.org/paper/8eeccf1033fd759c868b29ccb6aa70f5ffd1887c

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In Control and Systems Engineering

  1. Roberto Mart'in-Mart'in
  2. Peter Stone
  3. Rohan Chandra
  4. Ben Abbatematteo
  5. Chen Tang
  6. Jiaheng Hu
  7. Faraz Torabi
  8. W. B. Knox

In Management Science and Operations Research

  1. Roberto Mart'in-Mart'in
  2. Peter Stone
  3. Stefano V. Albrecht

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