Local Dense Logit Relations for Enhanced Knowledge Distillation

Fuente: arXiv
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Hauptverfasser: Xu, Liuchi, Liu, Kang, Liu, Jinshuai, Wang, Lu, Xu, Lisheng, Cheng, Jun
Format: Preprint
Veröffentlicht: 2025
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author Xu, Liuchi
Liu, Kang
Liu, Jinshuai
Wang, Lu
Xu, Lisheng
Cheng, Jun
author_facet Xu, Liuchi
Liu, Kang
Liu, Jinshuai
Wang, Lu
Xu, Lisheng
Cheng, Jun
contents State-of-the-art logit distillation methods exhibit versatility, simplicity, and efficiency. Despite the advances, existing studies have yet to delve thoroughly into fine-grained relationships within logit knowledge. In this paper, we propose Local Dense Relational Logit Distillation (LDRLD), a novel method that captures inter-class relationships through recursively decoupling and recombining logit information, thereby providing more detailed and clearer insights for student learning. To further optimize the performance, we introduce an Adaptive Decay Weight (ADW) strategy, which can dynamically adjust the weights for critical category pairs using Inverse Rank Weighting (IRW) and Exponential Rank Decay (ERD). Specifically, IRW assigns weights inversely proportional to the rank differences between pairs, while ERD adaptively controls weight decay based on total ranking scores of category pairs. Furthermore, after the recursive decoupling, we distill the remaining non-target knowledge to ensure knowledge completeness and enhance performance. Ultimately, our method improves the student's performance by transferring fine-grained knowledge and emphasizing the most critical relationships. Extensive experiments on datasets such as CIFAR-100, ImageNet-1K, and Tiny-ImageNet demonstrate that our method compares favorably with state-of-the-art logit-based distillation approaches. The code will be made publicly available.
format Preprint
id arxiv_https___arxiv_org_abs_2507_15911
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Local Dense Logit Relations for Enhanced Knowledge Distillation
Xu, Liuchi
Liu, Kang
Liu, Jinshuai
Wang, Lu
Xu, Lisheng
Cheng, Jun
Computer Vision and Pattern Recognition
State-of-the-art logit distillation methods exhibit versatility, simplicity, and efficiency. Despite the advances, existing studies have yet to delve thoroughly into fine-grained relationships within logit knowledge. In this paper, we propose Local Dense Relational Logit Distillation (LDRLD), a novel method that captures inter-class relationships through recursively decoupling and recombining logit information, thereby providing more detailed and clearer insights for student learning. To further optimize the performance, we introduce an Adaptive Decay Weight (ADW) strategy, which can dynamically adjust the weights for critical category pairs using Inverse Rank Weighting (IRW) and Exponential Rank Decay (ERD). Specifically, IRW assigns weights inversely proportional to the rank differences between pairs, while ERD adaptively controls weight decay based on total ranking scores of category pairs. Furthermore, after the recursive decoupling, we distill the remaining non-target knowledge to ensure knowledge completeness and enhance performance. Ultimately, our method improves the student's performance by transferring fine-grained knowledge and emphasizing the most critical relationships. Extensive experiments on datasets such as CIFAR-100, ImageNet-1K, and Tiny-ImageNet demonstrate that our method compares favorably with state-of-the-art logit-based distillation approaches. The code will be made publicly available.
title Local Dense Logit Relations for Enhanced Knowledge Distillation
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2507.15911