Learning Transferable Reward for Query Object Localization with Policy AdaptationDownload PDF

29 Sept 2021, 00:35 (modified: 14 Mar 2022, 17:26)ICLR 2022 PosterReaders: Everyone
Abstract: We propose a reinforcement learning based approach to query object localization, for which an agent is trained to localize objects of interest specified by a small exemplary set. We learn a transferable reward signal formulated using the exemplary set by ordinal metric learning. Our proposed method enables test-time policy adaptation to new environments where the reward signals are not readily available, and outperforms fine-tuning approaches that are limited to annotated images. In addition, the transferable reward allows repurposing the trained agent from one specific class to another class. Experiments on corrupted MNIST, CU-Birds, and COCO datasets demonstrate the effectiveness of our approach.
15 Replies