Neural networks suffer from catastrophic forgetting and are unable to sequentially learn new tasks without guaranteed stationarity in data distribution. Continual learning could be achieved via replay -- by concurrently training externally stored old data while learning a new task. However, replay becomes less effective when each past task is allocated with less memory. To overcome this difficulty, we supplemented replay mechanics with meta-learning for rapid knowledge acquisition. By employing a meta-learner, which \textit{learns a learning rate per parameter per past task}, we found that base learners produced strong results when less memory was available. Additionally, our approach inherited several meta-learning advantages for continual learning: it demonstrated strong robustness to continually learn under the presence of noises and yielded base learners to higher accuracy in less updates.

本文研究神经网络存在的遗忘问题以及连续学习的解决方案，通过重放机制和元学习的结合，发现引入元学习可以解决传统重放机制在每个任务分配的内存有限时容易导致失效的问题，并在保证学习效率和准确性方面具有优势。

从少量且带有噪声的数据中快速持续学习