arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2106.09013cs.AI
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基于Power知识图谱的智能问答系统

An Intelligent Question Answering System based on Power Knowledge Graph

Envision Digital(远景智能);State Grid Sichuan Electric Power Company(国网四川省电力公司);Hitachi ABB Power Grids(日立ABB电网)

Yachen Tang, Haiyun Han, Xianmao Yu, Jing Zhao, Guangyi Liu, Longfei Wei

摘要:

智能问答(IQA)系统通过理解自然语言问题,从海量知识库中高效搜索相关内容,并将答案直接返回给用户,从而准确捕捉用户的搜索意图。由于IQA系统在数据搜索和推理方面可以节省不可估量的时间和劳动力,因此它在数据科学和人工智能领域受到越来越多的关注。本文从电力行业的海量异构数据出发,利用图数据库和图计算技术,提出了一种领域知识图谱。提出了一种基于电力知识图谱的IQA系统,基于自然语言处理(NLP)方法提取自然询问的意图和约束,通过知识推理构建图数据查询语句,完成准确的知识搜索和分析,为用户提供直观的可视化信息。该方法将知识图谱和图计算的特点充分结合,实现了海量知识中的高速多跳知识关联推理分析。本文的工作也为上下文感知的智能问答提供了基础。

英文摘要:

The intelligent question answering (IQA) system can accurately capture users' search intention by understanding the natural language questions, searching relevant content efficiently from a massive knowledge-base, and returning the answer directly to the user. Since the IQA system can save inestimable time and workforce in data search and reasoning, it has received more and more attention in data science and artificial intelligence. This article introduced a domain knowledge graph using the graph database and graph computing technologies from massive heterogeneous data in electric power. It then proposed an IQA system based on the electrical power knowledge graph to extract the intent and constraints of natural interrogation based on the natural language processing (NLP) method, to construct graph data query statements via knowledge reasoning, and to complete the accurate knowledge search and analysis to provide users with an intuitive visualization. This method thoroughly combined knowledge graph and graph computing characteristics, realized high-speed multi-hop knowledge correlation reasoning analysis in tremendous knowledge. The proposed work can also provide a basis for the context-aware intelligent question and answer.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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