Representation Calibration and Uncertainty Guidance for Class-Incremental Learning based on Vision Language Model

Fuente: arXiv
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Autores principales: Tan, Jiantao, Ma, Peixian, Yu, Tong, Zhang, Wentao, Wang, Ruixuan
Formato: Preprint
Publicado: 2025
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author Tan, Jiantao
Ma, Peixian
Yu, Tong
Zhang, Wentao
Wang, Ruixuan
author_facet Tan, Jiantao
Ma, Peixian
Yu, Tong
Zhang, Wentao
Wang, Ruixuan
contents Class-incremental learning requires a learning system to continually learn knowledge of new classes and meanwhile try to preserve previously learned knowledge of old classes. As current state-of-the-art methods based on Vision-Language Models (VLMs) still suffer from the issue of differentiating classes across learning tasks. Here a novel VLM-based continual learning framework for image classification is proposed. In this framework, task-specific adapters are added to the pre-trained and frozen image encoder to learn new knowledge, and a novel cross-task representation calibration strategy based on a mixture of light-weight projectors is used to help better separate all learned classes in a unified feature space, alleviating class confusion across tasks. In addition, a novel inference strategy guided by prediction uncertainty is developed to more accurately select the most appropriate image feature for class prediction. Extensive experiments on multiple datasets under various settings demonstrate the superior performance of our method compared to existing ones.
format Preprint
id arxiv_https___arxiv_org_abs_2512_09441
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Representation Calibration and Uncertainty Guidance for Class-Incremental Learning based on Vision Language Model
Tan, Jiantao
Ma, Peixian
Yu, Tong
Zhang, Wentao
Wang, Ruixuan
Computer Vision and Pattern Recognition
Artificial Intelligence
Class-incremental learning requires a learning system to continually learn knowledge of new classes and meanwhile try to preserve previously learned knowledge of old classes. As current state-of-the-art methods based on Vision-Language Models (VLMs) still suffer from the issue of differentiating classes across learning tasks. Here a novel VLM-based continual learning framework for image classification is proposed. In this framework, task-specific adapters are added to the pre-trained and frozen image encoder to learn new knowledge, and a novel cross-task representation calibration strategy based on a mixture of light-weight projectors is used to help better separate all learned classes in a unified feature space, alleviating class confusion across tasks. In addition, a novel inference strategy guided by prediction uncertainty is developed to more accurately select the most appropriate image feature for class prediction. Extensive experiments on multiple datasets under various settings demonstrate the superior performance of our method compared to existing ones.
title Representation Calibration and Uncertainty Guidance for Class-Incremental Learning based on Vision Language Model
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2512.09441