电网故障处置预案区域差异化明显且实体嵌套复杂,仅凭实体类型识别难以准确地将其结构化。提出一种基于通用信息抽取(universal information extraction,UIE)框架的故障处置预案实体和事件识别方法。首先,提出基于句法分析的故障处置预...电网故障处置预案区域差异化明显且实体嵌套复杂,仅凭实体类型识别难以准确地将其结构化。提出一种基于通用信息抽取(universal information extraction,UIE)框架的故障处置预案实体和事件识别方法。首先,提出基于句法分析的故障处置预案实体标记方法,生成故障处置预案标记实体;然后,接入ERNIE 3.0编码及双指针解码模块替代UIE框架中生成式模型,通过调节超参数训练故障处置预案实体与实体标签在高维空间的映射关系及实体嵌套关系;最后,基于句法结构组合嵌套复杂的预案实体得到预案事件。通过不同区域电网调控中心预案验证,与其他算法相比,所提方法对故障处置预案具有较高的实体和事件识别精度,能够准确识别预案中故障处置策略和恢复策略,为故障情况下区域电网弹性提升提供支撑。展开更多
Entity recognition and disambiguation (ERD) is a crucial technique for knowledge base population and information extraction. In recent years, numerous papers have been published on this subject, and various ERD syst...Entity recognition and disambiguation (ERD) is a crucial technique for knowledge base population and information extraction. In recent years, numerous papers have been published on this subject, and various ERD systems have been developed. However, there are still some confusions over the ERD field for a fair and complete comparison of these systems. Therefore, it is of emerging interest to develop a unified evaluation framework. In this paper, we present an easy-to-use evaluation framework (EUEF), which aims at facilitating the evaluation process and giving a fair comparison of ERD systems. EUEF is well designed and released to the public as an open source, and thus could be easily extended with novel ERD systems, datasets, and evaluation metrics. It is easy to discover the advantages and disadvantages of a specific ERD system and its components based on EUEF. We perform a comparison of several popular and publicly available ERD systems by using EUEF, and draw some interesting conclusions after a detailed analysis.展开更多
文摘电网故障处置预案区域差异化明显且实体嵌套复杂,仅凭实体类型识别难以准确地将其结构化。提出一种基于通用信息抽取(universal information extraction,UIE)框架的故障处置预案实体和事件识别方法。首先,提出基于句法分析的故障处置预案实体标记方法,生成故障处置预案标记实体;然后,接入ERNIE 3.0编码及双指针解码模块替代UIE框架中生成式模型,通过调节超参数训练故障处置预案实体与实体标签在高维空间的映射关系及实体嵌套关系;最后,基于句法结构组合嵌套复杂的预案实体得到预案事件。通过不同区域电网调控中心预案验证,与其他算法相比,所提方法对故障处置预案具有较高的实体和事件识别精度,能够准确识别预案中故障处置策略和恢复策略,为故障情况下区域电网弹性提升提供支撑。
基金Project supported by the National Natural Science Foundation of China (No. 61572434), the China Knowledge Centre for Engineering Sciences and Technology (No. CKC-EST-2015-2-5), and the Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP), China (No. 20130101110-136)
文摘Entity recognition and disambiguation (ERD) is a crucial technique for knowledge base population and information extraction. In recent years, numerous papers have been published on this subject, and various ERD systems have been developed. However, there are still some confusions over the ERD field for a fair and complete comparison of these systems. Therefore, it is of emerging interest to develop a unified evaluation framework. In this paper, we present an easy-to-use evaluation framework (EUEF), which aims at facilitating the evaluation process and giving a fair comparison of ERD systems. EUEF is well designed and released to the public as an open source, and thus could be easily extended with novel ERD systems, datasets, and evaluation metrics. It is easy to discover the advantages and disadvantages of a specific ERD system and its components based on EUEF. We perform a comparison of several popular and publicly available ERD systems by using EUEF, and draw some interesting conclusions after a detailed analysis.