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Oral
Look-ahead Meta Learning for Continual Learning
Gunshi Gupta · Karmesh Yadav · Liam Paull

Wed Dec 09 06:15 AM -- 06:30 AM (PST) @ Orals & Spotlights: Continual/Meta/Misc Learning
in Orals & Spotlights Track 16: Continual/Meta/Misc Learning »

The continual learning problem involves training models with limited capacity to perform well on a set of an unknown number of sequentially arriving tasks. While meta-learning shows great potential for reducing interference between old and new tasks, the current training procedures tend to be either slow or offline, and sensitive to many hyper-parameters. In this work, we propose Look-ahead MAML (La-MAML), a fast optimisation-based meta-learning algorithm for online-continual learning, aided by a small episodic memory. By incorporating the modulation of per-parameter learning rates in our meta-learning update, our approach also allows us to draw connections to and exploit prior work on hypergradients and meta-descent. This provides a more flexible and efficient way to mitigate catastrophic forgetting compared to conventional prior-based methods. La-MAML achieves performance superior to other replay-based, prior-based and meta-learning based approaches for continual learning on real-world visual classification benchmarks.

[Paper]

Author Information

Gunshi Gupta (University of montreal)
Karmesh Yadav (Carnegie)
Liam Paull (Université de Montréal)

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