Curriculum for Reinforcement Learning

[Updated on 2020-02-03: mentioning PCG in the “Task-Specific Curriculum” section. [Updated on 2020-02-04: Add a new “curriculum through distillation” section. ...

Date: January 29, 2020 | Estimated Reading Time: 24 min | Author: Lilian Weng

Meta Reinforcement Learning

In my earlier post on meta-learning, the problem is mainly defined in the context of few-shot classification. Here I would like to explore more into cases when we try to “meta-learn” Reinforcement Learning (RL) tasks by developing an agent that can solve unseen tasks fast and efficiently. ...

Date: June 23, 2019 | Estimated Reading Time: 22 min | Author: Lilian Weng

Domain Randomization for Sim2Real Transfer

In Robotics, one of the hardest problems is how to make your model transfer to the real world. Due to the sample inefficiency of deep RL algorithms and the cost of data collection on real robots, we often need to train models in a simulator which theoretically provides an infinite amount of data. However, the reality gap between the simulator and the physical world often leads to failure when working with physical robots. The gap is triggered by an inconsistency between physical parameters (i.e. friction, kp, damping, mass, density) and, more fatally, the incorrect physical modeling (i.e. collision between soft surfaces). ...

Date: May 5, 2019 | Estimated Reading Time: 15 min | Author: Lilian Weng

Meta-Learning: Learning to Learn Fast

[Updated on 2019-10-01: thanks to Tianhao, we have this post translated in Chinese!] ...

Date: November 30, 2018 | Estimated Reading Time: 30 min | Author: Lilian Weng