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Multi-Level Knowledge Distillation with Positional Encoding Enhancement

delete2025-07-01
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PRE
AI
L
Lixiang Xu
Z
Zhiwen Wang
白
白璐 (Lu Bai) *
S
Shengwei Ji
B
B. Ai
王
王晓峰 (Xiaofeng Wang)
P
Philip S. Yu
DOI:10.1016/j.patcog.2025.111458delete
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摘要

摘要

En 中文
近年来,图神经网络(GNNs)在解决图相关任务方面取得了显著成功。知识蒸馏(KD)作为一种经典的模型压缩与加速技术,在图学习中正被越来越多地采用,能够将训练好的GNN模型的预测能力转移到轻量级、易于部署的多层感知器(MLP)模型中。然而,这种方法往往忽略了节点的位置特征,仅依赖训练好的GNN生成的标签,基于节点内容特征来训练MLP。此外,它严重依赖局部信息聚合,难以捕捉全局图结构,从而限制了节点分类任务的性能。为解决此问题,我们提出了具有位置编码增强的多级知识蒸馏(MLKD-PE)。我们的方法采用位置编码技术生成节点位置特征,并将其与节点内容特征结合,以增强MLP对节点位置的感知能力。此外,我们引入了一种多级KD技术,使学生的最终输出与教师模型的输出对齐,并通过整合教师模型的中间层输出来促进详细的知识传递。实验结果表明,与基线模型相比,我们的方法在多个数据集上显著提高了分类准确率,证实了其在节点分类任务中的优越性。
Keyword:
Graph neural networks
Multi-layer perceptrons
Graph knowledge distillation
Positional encoding
Efficient training and inference

期刊

Pattern Recognition 封面图
Pattern Recognition
IF:
7.6
论文数:
1.4W
被引数:
4.5W

机构

U
Univ Illinois
学者数:
3.2K
论文数: 2.2K
被引数: 419
H
hefei university
学者数:
110
论文数: 39
被引数: 0
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