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Model-Based Policy Search Using Monte Carlo Gradient Estimation With Real Systems Application
Open accessAbstract
In this article, we present a model-based reinforcement learning (MBRL) algorithm namedMonte Carlo probabilistic inference for learning control(MC-PILCO). This algorithm relies on Gaussian processes (GPs) to model the system dynamics and on a Monte Carlo approach to estimate the policy gradient. This defines a framework in which we ablate the choice of the components, which are the selection of the cost function, the optimization of policies using dropout, and an improved data efficiency through the use of structured kernels in the GP models. The combination of the aforementioned aspects affects dramatically the performance of MC-PILCO. Numerical comparisons in a simulated cart–pole environment show that MC-PILCO exhibits better data efficiency and control performance w.r.t. state-of-the-art GP-based MBRL algorithms. Finally, we apply MC-PILCO to real systems, considering, in particular, systems with partially measurable states. We discuss the importance of modeling both the measurement system and the state estimators during policy optimization. The effectiveness of the proposed solutions has been tested in simulation and on two real systems, which are the Furuta pendulum and the ball-and-plate rig.
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“Alternatively, a probabilistic model is able to eliminate most of the bias associated with predictions.”
From Improving Controller Generalization with Dimensionless Markov Decision Processes (2025) · cites this paper as Amadio et al. 2022
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Cited by
Improving Controller Generalization with Dimensionless Markov Decision Processes
Charvet, V., Stein, S., & Murray-Smith, R. (2025) · arXiv · doi:10.48550/arxiv.2504.10006
Metadata
- Authors
- Amadio, F., Dalla Libera, A., Antonello, R., Nikovski, D., Carli, R., & Romeres, D.
- Affiliations
- University of Padua (IT)
- Deptartment of Information Engineering, University of Padova, Padova, Italy
- Mitsubishi Electric Research Laboratories (United States) (US)
- ORCID
- Venue
- IEEE Transactions on Robotics
- Published
- 2022-12
- Volume
- 38
- Issue
- 6
- Pages
- 3879-3898
- ISSN
- 1552-3098 (ISSN-L)
- 1941-0468
- OpenAlex
- W3122949669
- Cited by
- 29
- References
- 4
- Citations by year
- 2026: 4 · 2025: 12 · 2024: 6 · 2023: 6 · 2022: 1
- FWCI
- 1.95
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- Locations
- IEEE Transactions on Robotics (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- HAL (submittedVersion, other-oa)
- Padua Research Archive (University of Padova) (submittedVersion, other-oa)
- arXiv (Cornell University) (cc-by)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Reinforcement Learning in Robotics
- Physical Sciences › Engineering › Control and Systems Engineering › Adaptive Dynamic Programming Control
- Physical Sciences › Computer Science › Artificial Intelligence › Gaussian Processes and Bayesian Inference
- Keywords
- model-based reinforcement learning, policy search, data efficiency, partially observed systems, state estimation, Furuta pendulum, ball and plate system, CartPole
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- Amadio, F., Dalla Libera, A., Antonello, R., Nikovski, D., Carli, R., & Romeres, D. (2022). Model-Based Policy Search Using Monte Carlo Gradient Estimation With Real Systems Application. IEEE Transactions on Robotics. https://doi.org/10.1109/tro.2022.3184837
