基于类别感知边界优化的知识蒸馏方法、设备及存储介质

By optimizing the knowledge distillation method for category-aware boundaries, the classification and discrimination capabilities of student networks are improved, solving the problem of insufficient category boundary differentiation in existing technologies and achieving higher fine-grained image classification accuracy.

CN122242645BActive Publication Date: 2026-07-17QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)
Filing Date
2026-05-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing decoupled knowledge distillation methods do not optimize category boundaries, making it difficult for student networks to effectively distinguish the boundaries of different categories during the knowledge distillation process. This results in poor classification ability, especially in fine-grained image classification tasks where it is difficult to obtain accurate image classification results.

Method used

A knowledge distillation network is constructed. By calculating the feature cosine similarity and distribution difference coefficient of the teacher and student networks, the category difficulty coefficient and the teacher-student distribution difference coefficient are introduced. Combined with fully connected layers and batch normalization layers, the category-aware boundary loss is optimized, and the total network loss of the training set and validation set is optimized to improve the classification and discrimination ability of the student network.

Benefits of technology

By optimizing the category-aware boundary, the student network model demonstrates stronger classification and discrimination capabilities in fine-grained image classification tasks, enabling it to more accurately identify similar categories and improve the accuracy of image classification.

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Abstract

本发明公开了一种基于类别感知边界优化的知识蒸馏方法、设备及存储介质,涉及机器学习与计算机视觉技术领域。本申请中将类别难度系数和所述差异系数拼接为输入向量;全连接层对输入向量进行线性变换与可学习加权融合,输出样本级自适应中间参数;将样本级自适应参数与阶段衰减系数逐元素相乘,得到批次级中间参数;批量归一化层对批次级中间参数进行处理,得到全局自适应边界参数;基于全局自适应边界参数计算类别感知边界损失;基于训练集、验证集及包含所述边界损失网络总损失对知识蒸馏网络进行训练,得到知识蒸馏网络模型。本申请所述方法能够对学生网络进行类别感知边界优化,得到具有更强分类判别能力的学生网络模型。
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