Entity relationship extraction method and system for operation and maintenance work order

The invention discloses an entity relationship extraction method and system for an operation and maintenance work order. The method comprises the steps of obtaining text data of an operation and maintenance work order, and labeling the text data according to a preset operation and maintenance knowledge base to obtain text labeling data; performing word segmentation processing on the text annotation data to obtain a word sequence, and determining annotation word vectors of entity annotation words in the word sequence; and according to the annotation word vector and an entity pair specified by the word sequence, determining a semantic vector of the entity annotation word, and according to the semantic vector and a preset entity relationship extraction model, determining an entity relationship extraction result of the operation and maintenance work order. According to the scheme, the operation and maintenance work order entity extraction accuracy is improved. 一种运维工单的实体关系抽取方法和系统。该方法包括，获取运维工单的文本数据，根据预设的运维知识库对所述文本数