面向退役机电产品全生命周期的知识图谱统一建模方法研究  

Research on Unified Modeling Method of Knowledge Graph towards the Full Life Cycle of Decommissioned Electromechanical Products

作　　者：吴秀丽[1] 马隆洲 向东 唐英[1] WU Xiuli;MA Longzhou;XIANG Dong;TANG Ying(School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083)

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《机械工程学报》2023年第7期52-67,共16页Journal of Mechanical Engineering

基　　金：国家重点研发计划(2020YFB1712902);国家自然科学基金(52175449,51975323)资助项目。

摘　　要：针对退役机电产品逆向物流信息追溯过程中时空分散度高、质量不确定性强、跨组织信息关联度弱等问题,基于知识图谱技术构建了退役机电产品全生命周期统一数据模型。首先提出了从跨组织多源数据到知识图谱构建和应用的全生命周期统一数据建模方法,然后提出了知识图谱构建关键技术,针对知识图谱构建过程中的实体关系联合抽取问题,建立了基于分段注意力融合机制的实体关系联合抽取模型,解决了实体关系重叠问题,并在标准数据集和退役机电产品领域数据集上进行测试,取得了很好的效果,最后建立了退役机电产品全生命周期信息追溯系统。知识图谱的构建实现了退役机电产品生命周期中跨组织信息的统一数据结构,为退役机电产品逆向物流信息追溯提供了强有力的支撑。To solve the issues of high spatial and temporal dispersion,strong quality uncertainty and weak inter-organizational information correlation in tracing reverse logistics information of retired mechanical and electrical products,a unified data model based on knowledge graph for the full life cycle information of retired mechanical and electrical products is constructed.Firstly,the architecture to build the unified data model is proposed to deal with the data from different organizations,and then it's key technology is discussed.A joint entity relation extraction model based on segmental attention fusion mechanism is developed to jointly extract the entities and relations task in building the knowledge graph,which can effectively solve the overlapping issue of entities and relationships.The model is tested in the standard datasets and the decommissioned electromechanical products datasets and the results show that the proposed model is effective.Finally,a dynamic information traceability system is developed.The knowledge graph realizes the unified data structure of the cross-organization information of retired electromechanical products in the whole life cycle,and provides a strong support for the reverse logistics information traceability of retired electromechanical products.

关 键 词：退役机电产品 全生命周期信息追溯 统一数据模型 知识图谱 实体关系联合抽取 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TM925[自动化与计算机技术—计算机科学与技术] TU60[电气工程—电力电子与电力传动]