# Imagined Value Gradients: Model-Based Policy Optimization with Transferable Latent Dynamics Models

arXiv: https://arxiv.org/abs/1910.04142 · HTML: https://mlsanity.com/paper/1910.04142/

## Key facts

- Cited by 26 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 9 Oct 2019.

## Built on by (most cited first, 26 of 26)

- [Tutorial on amortized optimization](https://mlsanity.com/paper/2202.00665/) (2022)
- [Learning and Planning in Complex Action Spaces](https://mlsanity.com/paper/2104.06303/) (2021)
- [A Survey on Model-based Reinforcement Learning](https://mlsanity.com/paper/2206.09328/) (2022)
- [Muesli: Combining Improvements in Policy Optimization](https://mlsanity.com/paper/2104.06159/) (2021)
- [MBRL-Lib: A Modular Library for Model-based Reinforcement Learning](https://mlsanity.com/paper/2104.10159/) (2021)
- [DreamingV2: Reinforcement Learning with Discrete World Models without Reconstruction](https://mlsanity.com/paper/2203.00494/) (2022)
- [Learning Dynamics Models for Model Predictive Agents](https://mlsanity.com/paper/2109.14311/) (2021)
- [Adaptive Horizon Actor-Critic for Policy Learning in Contact-Rich Differentiable Simulation](https://mlsanity.com/paper/2405.17784/) (2024)
- [Collect & Infer -- a fresh look at data-efficient Reinforcement Learning](https://mlsanity.com/paper/2108.10273/) (2021)
- [Meta-DT: Offline Meta-RL as Conditional Sequence Modeling with World Model Disentanglement](https://mlsanity.com/paper/2410.11448/) (2024)
- [Bridging Imagination and Reality for Model-Based Deep Reinforcement Learning](https://mlsanity.com/paper/2010.12142/) (2020)
- [Evaluating model-based planning and planner amortization for continuous control](https://mlsanity.com/paper/2110.03363/) (2021)
- [Learning General World Models in a Handful of Reward-Free Deployments](https://mlsanity.com/paper/2210.12719/) (2022)
- [LLM-Based World Models Can Make Decisions Solely, But Rigorous Evaluations are Needed](https://mlsanity.com/paper/2411.08794/) (2024)
- [Self-Consistent Models and Values](https://mlsanity.com/paper/2110.12840/) (2021)
- [Model-Value Inconsistency as a Signal for Epistemic Uncertainty](https://mlsanity.com/paper/2112.04153/) (2021)
- [Leveraging Jumpy Models for Planning and Fast Learning in Robotic Domains](https://mlsanity.com/paper/2302.12617/) (2023)
- [Diminishing Return of Value Expansion Methods in Model-Based Reinforcement Learning](https://mlsanity.com/paper/2303.03955/) (2023)
- [Investigating the role of model-based learning in exploration and transfer](https://mlsanity.com/paper/2302.04009/) (2023)
- [First Order Model-Based RL through Decoupled Backpropagation](https://mlsanity.com/paper/2509.00215/) (2025)
- [A model-based approach to meta-Reinforcement Learning: Transformers and tree search](https://mlsanity.com/paper/2208.11535/) (2022)
- [GrASP: Gradient-Based Affordance Selection for Planning](https://mlsanity.com/paper/2202.04772/) (2022)
- [Guided Cooperation in Hierarchical Reinforcement Learning via Model-based Rollout](https://mlsanity.com/paper/2309.13508/) (2023)
- [Multi-Agent Reinforcement Learning-Based UAV Pathfinding for Obstacle Avoidance in Stochastic Environment](https://mlsanity.com/paper/2310.16659/) (2023)
- [Diminishing Return of Value Expansion Methods](https://mlsanity.com/paper/2412.20537/) (2024)
- [Soft MPCritic: Value-Based Reinforcement Learning for Non-Differentiable Predictive Control](https://mlsanity.com/paper/2604.01477/) (2026)

## Abstract (arXiv)

Humans are masters at quickly learning many complex tasks, relying on an approximate understanding of the dynamics of their environments. In much the same way, we would like our learning agents to quickly adapt to new tasks. In this paper, we explore how model-based Reinforcement Learning (RL) can facilitate transfer to new tasks. We develop an algorithm that learns an action-conditional, predictive model of expected future observations, rewards and values from which a policy can be derived by following the gradient of the estimated value along imagined trajectories. We show how robust policy optimization can be achieved in robot manipulation tasks even with approximate models that are learned directly from vision and proprioception. We evaluate the efficacy of our approach in a transfer learning scenario, re-using previously learned models on tasks with different reward structures and visual distractors, and show a significant improvement in learning speed compared to strong off-policy baselines. Videos with results can be found at https://sites.google.com/view/ivg-corl19
