基于映射关系的多模态电网设备数据实时检索  

Real time retrieval of multimodal power grid equipment data based on mapping relationships

作　　者：陈雪 陈艺丹 何其淼 万敏 周磊 CHEN Xue;CHEN Yidan;HE Qimiao;WAN Min;ZHOU Lei(Foshan Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Foshan 528200,China)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528200

出　　处：《电子设计工程》2025年第5期26-30,共5页Electronic Design Engineering

基　　金：国家自然科学基金项目(82060853)。

摘　　要：针对多模态电网设备数据之间存在相互关系,导致数据检索效果差、检索精准度和效率低的问题,提出了基于映射关系的多模态电网设备数据实时检索方法。采用三元组表示多模态电网设备数据结构的本体映射关系,依据多模态电网设备数据的五元组集合,构建多模态电网设备数据实时检索模型。根据条件概率分布,生成包含图片和文本的文档,使文档呈线性稳定分布。结合哈希函数,计算数据点映射距离,利用Tag方法实时抽取待检索文档的关键词。计算任意两个待检索多模态电网设备数据文档之间关系,设计实时检索流程,实现多模态电网设备数据实时检索。实验结果表明,所提方法的检索召回率和准确率分别高达0.98和0.99,检索时间仅为27.4 ms,具有较好的多模态电网设备数据实时检索效果,提高了88.5%的检索召回率、23.8%的检索准确率以及36.3%的检索效率。A real⁃time retrieval method for multimodal power grid equipment data based on mapping relationships is proposed to address the issues of poor data retrieval performance,low retrieval accuracy,and efficiency caused by the interrelationships between multimodal power grid equipment data.Using triplets to represent the ontology mapping relationship of multimodal power grid equipment data structure,a real⁃time retrieval model for multimodal power grid equipment data is constructed based on the set of quintuples of multimodal power grid equipment data.Generate a document containing images and text based on the conditional probability distribution,making the document exhibit a linear stable distribution.Combining the hash function,calculate the mapping distance of data points,and use the Tag method to extract keywords from the documents to be retrieved in real⁃time.Calculate the relationship between any two multimodal power grid equipment data documents to be retrieved,design a real⁃time retrieval process,and achieve real⁃time retrieval of multimodal power grid equipment data.The experimental results show that the retrieval recall and accuracy of the proposed method are as high as 0.98 and 0.99,respectively,and the retrieval time is only 27.4 ms.It has good real⁃time retrieval performance for multimodal power grid equipment data,improved retrieval recall by 88.5%,retrieval accuracy by 23.8%,and retrieval efficiency by 36.3%.

关 键 词：映射关系 多模态电网 设备数据 实时检索 Tag方法 

分 类 号：TN919[电子电信—通信与信息系统]