Title
ROBUST MAML: PRIORITIZATION TASK BUFFER WITH ADAPTIVE LEARNING PROCESS FOR MODEL-AGNOSTIC META-LEARNING
Abstract
Model agnostic meta-learning (MAML) is a popular state-of-the-art meta-learning algorithm that provides good weight initialization of a model given a variety of learning tasks. The model initialized by provided weight can be fine-tuned to an unseen task despite only using a small amount of samples and within a few adaptation steps. MAML is simple and versatile but requires costly learning rate tuning and careful design of the task distribution which affects its scalability and generalization. This paper proposes a more robust MAML based on an adaptive learning scheme and a prioritization task buffer (PTB) referred to as Robust MAML (RMAML) for improving scalability of training process and alleviating the problem of distribution mismatch. RMAML uses gradient-based hyper-parameter optimization to automatically find the optimal learning rate and uses the PTB to gradually adjust training task distribution toward testing task distribution over the course of training. Experimental results on meta reinforcement learning environments demonstrate a substantial performance gain as well as being less sensitive to hyper-parameter choice and robust to distribution mismatch.
Year
DOI
Venue
2021
10.1109/ICASSP39728.2021.9413446
2021 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2021)
Keywords
DocType
Citations 
meta-learning, reinforcement learning, hyper-parameter optimization, learning to learn
Conference
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Thanh Nguyen1245.76
Tung Luu200.34
Trung Pham3234.80
Sanzhar Rakhimkul400.34
Chang D. Yoo537545.88