目的 构建基于肠造口并发症知识图谱的智能问答系统。 方法 （1）知识图谱构建：通过整合肠造口相关并发症指南等多种知识来源，采用本体构建七步法设计了肠造口相关并发症知识图谱的本体，之后采用自动机（aho-corasick automaton,AC）多模式匹配算法，建立造口并发症实体-关系-实体三元组，构建造口并发症知识图谱；（2）智能问答系统构建：建立肠造口相关并发症自然语言词库和特征词词库，以模板匹配的方式对问题进行分类，然后形成适用于图数据库查询语言（Cypher）语法的结构化查询语言(structured query language，SQL)匹配语句，完成知识图谱查询任务，最终建立肠造口相关并发症智能问答系统。 结果 构建了以并发症名称、临床表现、病因、治疗措施等为本体层的造口相关并发症知识图谱，并建立了通过Cypher语言进行知识查询的智能问答系统。 结论 本智能问答系统，可帮助肠造口患者快速获取经过循证的医疗信息，赋能肠造口患者并发症的科学自我管理，促进肠造口管理服务普惠化。

Objective To establish an intelligent question-answering system based on the knowledge map of enterostomy-related complications.Methods （1） Construction of the knowledge map:Through integrating various knowledge sources such as guidelines related to enterostomy related complications,the ontology of the knowledge map of enterostomy-related complications was designed using the seven-step ontology construction approach.Subsequently,the Aho-Corasick automaton (AC automaton) multi-pattern matching algorithm was adopted to establish entity-relationship-entity triples of stoma complications,thereby constructing the knowledge map of stoma complications.（2）Construction of the intelligent question-answering system：An ontology of enterostomy-related complications natural language vocabulary and feature word vocabulary was established，and the questions were categorized by template matching.Then，the structured query language (SQL) matching statements appropriate for the Cypher(Cypher graph database query language) syntax were formed to accomplish the knowledge map query task，and ultimately，the intelligent question-answering system for enterostomy-related complications was established.Results A knowledge map of stoma-related complications was constructed,with entities such as complication names,clinical manifestations,etiologies,and treatment measures as the ontology layer.Additionally,an intelligent question-answering system for conducting knowledge queries through Cypher language was established.Conclusions This intelligent question-answering system enables patients with enterostomy to promptly obtain evidence-based medical information,empowers the scientific self-management of complications among patients with enterostomy,and promotes the universalization of enterostomy management services.

R47-05

中国博士后科学基金面上资助项目（2024M750136）；北京大学护理学科科研发展基金(TYZH2023001)