Divide and Conquer: Static-Dynamic Collaboration for Few-Shot Class-Incremental Learning

Fuente: arXiv
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Autori principali: Bao, Kexin, Zhang, Daichi, Li, Yong, Zeng, Dan, Ge, Shiming
Natura: Preprint
Pubblicazione: 2026
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author Bao, Kexin
Zhang, Daichi
Li, Yong
Zeng, Dan
Ge, Shiming
author_facet Bao, Kexin
Zhang, Daichi
Li, Yong
Zeng, Dan
Ge, Shiming
contents Few-shot class-incremental learning (FSCIL) aims to continuously recognize novel classes under limited data, which suffers from the key stability-plasticity dilemma: balancing the retention of old knowledge with the acquisition of new knowledge. To address this issue, we divide the task into two different stages and propose a framework termed Static-Dynamic Collaboration (SDC) to achieve a better trade-off between stability and plasticity. Specifically, our method divides the normal pipeline of FSCIL into Static Retaining Stage (SRS) and Dynamic Learning Stage (DLS), which harnesses old static and incremental dynamic class information, respectively. During SRS, we train an initial model with sufficient data in the base session and preserve the key part as static memory to retain fundamental old knowledge. During DLS, we introduce an extra dynamic projector jointly trained with the previous static memory. By employing both stages, our method achieves improved retention of old knowledge while continuously adapting to new classes. Extensive experiments on three public benchmarks and a real-world application dataset demonstrate that our method achieves state-of-the-art performance against other competitors.
format Preprint
id arxiv_https___arxiv_org_abs_2601_08448
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Divide and Conquer: Static-Dynamic Collaboration for Few-Shot Class-Incremental Learning
Bao, Kexin
Zhang, Daichi
Li, Yong
Zeng, Dan
Ge, Shiming
Computer Vision and Pattern Recognition
Artificial Intelligence
Few-shot class-incremental learning (FSCIL) aims to continuously recognize novel classes under limited data, which suffers from the key stability-plasticity dilemma: balancing the retention of old knowledge with the acquisition of new knowledge. To address this issue, we divide the task into two different stages and propose a framework termed Static-Dynamic Collaboration (SDC) to achieve a better trade-off between stability and plasticity. Specifically, our method divides the normal pipeline of FSCIL into Static Retaining Stage (SRS) and Dynamic Learning Stage (DLS), which harnesses old static and incremental dynamic class information, respectively. During SRS, we train an initial model with sufficient data in the base session and preserve the key part as static memory to retain fundamental old knowledge. During DLS, we introduce an extra dynamic projector jointly trained with the previous static memory. By employing both stages, our method achieves improved retention of old knowledge while continuously adapting to new classes. Extensive experiments on three public benchmarks and a real-world application dataset demonstrate that our method achieves state-of-the-art performance against other competitors.
title Divide and Conquer: Static-Dynamic Collaboration for Few-Shot Class-Incremental Learning
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2601.08448