QiXuanWang / LearningFromTheBest

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Asynchronous Methods for Model-Based Reinforcement Learning By: Yunzhi Zhang, Ignasi Clavera, +1 author Pieter Abbeel #28

Open QiXuanWang opened 4 years ago

QiXuanWang commented 4 years ago

Link: semanticsholar

Code: https://github.com/zzyunzhi/asynch-mb This is an incremental paper which introduced asynchronous data collecting and policy improvement, or so called "interleaving" technique.

Problem:

State-of-the-art algorithms are now able to match the asymptotic performance of model-free methods while being significantly more data efficient. However, this success has come at a price: state-of-the-art model-based methods require significant computation interleaved with data collection, resulting in run times that take days

Innovation/Contribution:

In this work, we propose an asynchronous framework for model-based reinforcement learning methods that brings down the run time of these algorithms to be just the data collection time We characterized the key traits of asynchronous training that improves sample efficiency: policy regularization by interleaving policy learning and model learning, and better data collection by interleaving policy learning and data collection