TAN Qi, ZHU Daokun, TANG Hao, et al. Power Dispatching Event Extraction Method Based on MSSI-UIE[J]. 2026, 46(15): 6286-6295.DOI: 10.13334/j.0258-8013.pcsee.250925.
电力调度事件知识图谱可以提供丰富的历史调度知识,辅助调度员进行调度决策。然而,电力调度文本逻辑结构复杂,在数据稀疏和小样本场景下事件论元抽取困难,严重制约了知识图谱的构建。针对上述问题,该文提出一种基于多种结构化模式提示器与通用信息抽取的电力调度事件抽取方法。首先,采用基于Transformer的双向编码器表示(bidirectional encoder representations from transformers,BERT)模型改进通用信息抽取(universal information extraction,UIE)原有的生成式架构,结合电力实词掩码预训练和双指针网络,实现事件论元的精准定位;然后,设计基于DeepSeek的调度事件文本数据增强方法,实现训练数据的有效扩增;最后,设计3种结构化模式提示器,从多个语义维度对事件论元进行联合抽取。实验结果表明,在数据稀疏以及小样本场景下,该方法能够有效提升电力调度事件抽取的效率与准确性。
Abstract
The power dispatching event knowledge graph can provide comprehensive historical dispatching knowledge to assist dispatchers in decision-making. However
the complex logical structure of power dispatching texts
combined with data sparsity and few-shot scenarios
makes event argument extraction challenging
which severely hampers the construction of knowledge graphs. To address these issues
this paper proposes a novel multiple structural schema instructor- universal information extraction (MSSI-UIE) framework for power dispatching event extraction. First
the UIE's original generative architecture is improved with the bidirectional encoder representations from transformers (BERT) model
integrating power domain-specific term masking pre-training and dual-pointer network to achieve precise event argument localization. Then
a DeepSeek-based text data augmentation approach is developed to effectively expand the training corpus. Finally
three types of structural schema instructor (SSI) are designed to collaboratively extract event arguments from multiple semantic dimensions. Experimental results demonstrate that this method exhibits strong performance in data-sparse and few-shot scenarios
effectively enhancing the efficiency and accuracy of power dispatching event extraction.