Weakly Supervised Active Learning with Cluster Annotation
This addresses the problem of high annotation costs for training deep neural networks, offering a significant reduction in human effort, though it is an incremental improvement over existing active learning methods.
The paper tackles the problem of reducing human annotation effort in active learning by introducing a framework that uses cluster annotation, allowing humans to label clusters instead of individual samples, which reduces human interactions by 82% on CIFAR-10 and 87% on EuroSAT while maintaining similar test performance.
In this work, we introduce a novel framework that employs cluster annotation to boost active learning by reducing the number of human interactions required to train deep neural networks. Instead of annotating single samples individually, humans can also label clusters, producing a higher number of annotated samples with the cost of a small label error. Our experiments show that the proposed framework requires 82% and 87% less human interactions for CIFAR-10 and EuroSAT datasets respectively when compared with the fully-supervised training while maintaining similar performance on the test set.