Mitigating Interference in the Knowledge Continuum through Attention-Guided Incremental Learning

Fuente: arXiv
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Main Authors: Bhat, Prashant, Renjith, Bharath, Arani, Elahe, Zonooz, Bahram
Format: Preprint
Published: 2024
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author Bhat, Prashant
Renjith, Bharath
Arani, Elahe
Zonooz, Bahram
author_facet Bhat, Prashant
Renjith, Bharath
Arani, Elahe
Zonooz, Bahram
contents Continual learning (CL) remains a significant challenge for deep neural networks, as it is prone to forgetting previously acquired knowledge. Several approaches have been proposed in the literature, such as experience rehearsal, regularization, and parameter isolation, to address this problem. Although almost zero forgetting can be achieved in task-incremental learning, class-incremental learning remains highly challenging due to the problem of inter-task class separation. Limited access to previous task data makes it difficult to discriminate between classes of current and previous tasks. To address this issue, we propose `Attention-Guided Incremental Learning' (AGILE), a novel rehearsal-based CL approach that incorporates compact task attention to effectively reduce interference between tasks. AGILE utilizes lightweight, learnable task projection vectors to transform the latent representations of a shared task attention module toward task distribution. Through extensive empirical evaluation, we show that AGILE significantly improves generalization performance by mitigating task interference and outperforming rehearsal-based approaches in several CL scenarios. Furthermore, AGILE can scale well to a large number of tasks with minimal overhead while remaining well-calibrated with reduced task-recency bias.
format Preprint
id arxiv_https___arxiv_org_abs_2405_13978
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Mitigating Interference in the Knowledge Continuum through Attention-Guided Incremental Learning
Bhat, Prashant
Renjith, Bharath
Arani, Elahe
Zonooz, Bahram
Machine Learning
Artificial Intelligence
Computer Vision and Pattern Recognition
Continual learning (CL) remains a significant challenge for deep neural networks, as it is prone to forgetting previously acquired knowledge. Several approaches have been proposed in the literature, such as experience rehearsal, regularization, and parameter isolation, to address this problem. Although almost zero forgetting can be achieved in task-incremental learning, class-incremental learning remains highly challenging due to the problem of inter-task class separation. Limited access to previous task data makes it difficult to discriminate between classes of current and previous tasks. To address this issue, we propose `Attention-Guided Incremental Learning' (AGILE), a novel rehearsal-based CL approach that incorporates compact task attention to effectively reduce interference between tasks. AGILE utilizes lightweight, learnable task projection vectors to transform the latent representations of a shared task attention module toward task distribution. Through extensive empirical evaluation, we show that AGILE significantly improves generalization performance by mitigating task interference and outperforming rehearsal-based approaches in several CL scenarios. Furthermore, AGILE can scale well to a large number of tasks with minimal overhead while remaining well-calibrated with reduced task-recency bias.
title Mitigating Interference in the Knowledge Continuum through Attention-Guided Incremental Learning
topic Machine Learning
Artificial Intelligence
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2405.13978