Online Class-Incremental Continual Learning with Adversarial Shapley Value
This addresses the need for efficient continual learning on devices like cell phones and smart watches, though it is incremental as it builds on existing replay techniques.
The paper tackled the problem of selecting which buffered images to replay in online class-incremental continual learning, proposing an Adversarial Shapley value scoring method that achieved competitive or improved performance compared to state-of-the-art replay-based methods on various datasets.
As image-based deep learning becomes pervasive on every device, from cell phones to smart watches, there is a growing need to develop methods that continually learn from data while minimizing memory footprint and power consumption. While memory replay techniques have shown exceptional promise for this task of continual learning, the best method for selecting which buffered images to replay is still an open question. In this paper, we specifically focus on the online class-incremental setting where a model needs to learn new classes continually from an online data stream. To this end, we contribute a novel Adversarial Shapley value scoring method that scores memory data samples according to their ability to preserve latent decision boundaries for previously observed classes (to maintain learning stability and avoid forgetting) while interfering with latent decision boundaries of current classes being learned (to encourage plasticity and optimal learning of new class boundaries). Overall, we observe that our proposed ASER method provides competitive or improved performance compared to state-of-the-art replay-based continual learning methods on a variety of datasets.