Knowledge retrieval method and device

The invention provides a knowledge retrieval method and device, relates to the field of artificial intelligence, in particular to the field of intelligent search, and can be applied to scenes such as man-machine conversation and electronic libraries. According to the specific implementation scheme, in response to a received search request, entity information and facet information are extracted from the search request; searching a target node matched with the entity information and the facet information in a pre-constructed knowledge graph; obtaining source data for constructing a target node; analyzing semantics in the search request; and retrieving a retrieval result matched with the semantics from the source data. According to the embodiment, more efficient, accurate and comprehensive knowledge retrieval service can be provided. 本公开提供了知识检索方法和装置，涉及人工智能领域，尤其涉及智能搜索领域，可应用于人机对话、电子图书馆等场景。具体实现方案为：响应于接收到搜索请求，从搜索请求中提取实体信息和分面信息；在预先构建的知识图谱中搜索与实体信息和分面信息匹配的目标节点；获取构建目标节点的源数据；解析搜索请求中的语义；从源数据中检索出与语义匹配的检索结果。该实施方式能够提供更高效、精准、