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Base transformers: attention over base data-points for one shot learning

Maniparambil, Mayug orcid logoORCID: 0000-0002-9976-1920, McGuinness, Kevin orcid logoORCID: 0000-0003-1336-6477 and O'Connor, Noel E. orcid logoORCID: 0000-0002-4033-9135 (2022) Base transformers: attention over base data-points for one shot learning. In: 33rd British Machine Vision Conference, 21-24 Nov 2022, London.

Abstract
Few shot classification aims to learn to recognize novel categories using only limited samples per category. Most current few shot methods use a base dataset rich in labeled examples to train an encoder that is used for obtaining representations of support instances for novel classes. Since the test instances are from a distribution different to the base distribution, their feature representations are of poor quality, degrading performance. In this paper we propose to make use of the well-trained feature representations of the base dataset that are closest to each support instance to improve its representation during meta-test time. To this end, we propose BaseTransformers, that attends to the most relevant regions of the base dataset feature space and improves support instance representations. Experiments on three benchmark data sets show that our method works well for several backbones and achieves state-of-the-art results in the inductive one shot setting. Code is available at github.com/mayug/BaseTransformers .
Metadata
Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:few-shot learning; one-shot learning; transformers; attention
Subjects:Computer Science > Artificial intelligence
Computer Science > Machine learning
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Published in: 33rd British Machine Vision Conference, Proceedings. . BMVC.
Publisher:BMVC
Official URL:https://bmvc2022.mpi-inf.mpg.de/482/
Copyright Information:© 2022 The Authors.
ID Code:27829
Deposited On:24 Nov 2022 12:43 by Mayug Maniparambil . Last Modified 16 Nov 2023 13:50
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