基于语义的小样本学习原型优化方法

doi:10.16451/j.cnki.issn1003-6059.202502003

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Abstract Semantic information can provide rich prior knowledge for few-shot learning. However, existing few-shot learning studies only superficially explore the combination of images and semantics, failing to fully utilize semantics to explore class features. Consequently, the model performance is limited. To address this issue, a semantic-based prototype optimization method for few-shot learning(SBPO) is proposed. First, SBPO employs channel-wise semantic prompts to guide the model in extracting visual features while progressively optimizing class prototypes. Second, a multi-modal margin loss is designed to integrate inter-class correlations in both visual and semantic dimensions with the loss function, thereby constraining the model to enhance the distinctiveness of class prototypes. Finally, through a two-stage fine-tuning process, the model can fully leverage semantic knowledge to optimize class prototypes, thereby improving classification accuracy. Experiments on four benchmark datasets demonstrate that SBPO significantly outperforms baseline methods.

Key words： Few-Shot Learning Prototype Optimization Semantic Knowledge Multi-modal Few-Shot Learning Prompt-Based Learning

Received: 15 January 2025

ZTFLH:

TP183

Fund:National Key Research and Development Program of China(No.2021YFA1000102), National Natural Science Foundation of China(No.62376285,62272375,61673396), Natural Science Foundation of Shandong Province(No.ZR2022MF260)

Corresponding Authors: SHAO Mingwen, Ph.D., professor. His research interests include computer vision.

About author:: LIU Yuanyuan, Master student. Her research interests include computer vision and few-shot learning methods. ZHANG Lixu, Master student. His research interests include computer vision and cross-domain few-shot learning methods. SHAO Xun, Master student. Her research interests include computer vision and domain adaptation methods.

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Cite this article:

LIU Yuanyuan,SHAO Mingwen,ZHANG Lixu等. Semantic-Based Prototype Optimization Method for Few-Shot Learning[J]. Pattern Recognition and Artificial Intelligence, 2025, 38(2): 132-142.

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http://manu46.magtech.com.cn/Jweb_prai/EN/10.16451/j.cnki.issn1003-6059.202502003 OR http://manu46.magtech.com.cn/Jweb_prai/EN/Y2025/V38/I2/132

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