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Sequence-aware Knowledge Distillation for a Lightweight Event Representation

delete2022-12-21
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PRE
AI
J
Jianming Zheng
F
Fei Cai *
Y
Yanxiang Ling
陈宏辉 cover
陈宏辉 (Honghui Chen)
DOI:10.1145/3545798delete
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Abstract

Abstract

En 中文
Event representation targets to model the event-reasoning process as a machine-readable format. Previous studies on event representation mostly concentrate on a sole modeling perspective and have not well investigated the scenario-level knowledge, which can cause information loss. To cope with this dilemma, we propose a unified fine-tuning architecture-based approach (UniFA-S) that integrates all levels of trainings, including the scenario-level knowledge. However, another challenge for existing models is the ever-increasing computation overheads, restricting the deployment ability on limited resources devices. Hence, in this article, we aim to compress the cumbersome model UniFA-S into a lighter and easy-to-deploy one without much performance damage. To this end, we propose a sequence-aware knowledge distillation model (SaKD) that employs a dynamic self-distillation on the decouple-compress-couple framework for compressing UniFA-S, which cannot only realize the model compression, but also retain the integrity of individual components. We also design two fitting strategies to address the less-supervised issue at the distillation stage. Comprehensive experiments on representation-and-inference ability-based tasks validate the effectiveness of SaKD. Compared to UniFA-S, SaKD realizes a more portable event representation model at the cost of only 1.0% performance drop in terms of accuracy or Spearman's correlation, which is far less than other knowledge distillation models.
Keywords:
Event representation
knowledge distillation
event similarity
event prediction

Journal

ACM Transactions on Information Systems cover
ACM Transactions on Information Systems
IF:
9.1
Papers:
1.2K
Citations:
4.7K

Organization

N
national university of defense technology - china
Scholars:
1.8W
Papers: 1.4W
Citations: 9