Papers › AD-KD: Attribution-Driven Knowledge Distillation for Language Model Compression

AD-KD: Attribution-Driven Knowledge Distillation for Language Model Compression

17 May 2023arXiv:2305.10010archive 2025-07-28

Siyue Wu, Hongzhan Chen, Xiaojun Quan, Qifan Wang, Rui Wang

Knowledge distillation has attracted a great deal of interest recently to compress pre-trained language models. However, existing knowledge distillation methods suffer from two limitations. First, the student model simply imitates the teacher's behavior while ignoring the underlying reasoning. Second, these methods usually focus on the transfer of sophisticated model-specific knowledge but overlook data-specific knowledge. In this paper, we present a novel attribution-driven knowledge distillation approach, which explores the token-level rationale behind the teacher model based on Integrated Gradients (IG) and transfers attribution knowledge to the student model. To enhance the knowledge transfer of model reasoning and generalization, we further explore multi-view attribution distillation on all potential decisions of the teacher. Comprehensive experiments are conducted with BERT on the GLUE benchmark. The experimental results demonstrate the superior performance of our approach to several state-of-the-art methods.

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Tasks

Knowledge DistillationLanguage ModelingLanguage ModellingModel CompressionTransfer Learning

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Methods

AdamAttentionAttention DropoutBERTDense ConnectionsDropoutKnowledge DistillationLayer NormalizationLinear LayerLinear Warmup With Linear DecayMulti-Head AttentionResidual ConnectionSoftmaxWeight DecayWordPiece

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