Knowledge graph construction method based on multiple data sources

The invention provides a knowledge graph construction method based on multiple data sources. The knowledge graph construction method comprises the following steps of crawling text information of a target in the Internet by using a crawler; downloading literature information related to the target from a literature database, processing the text information by using a natural language, extracting entities and relationships contained in the text information, extracting entities and relationships contained in the literature information of the target, synthesizing the text information and entities and relationships contained in the literature information, and drawing a target knowledge graph. According to the invention, aiming at the problem of incomplete knowledge graph construction caused by insufficient utilization of multiple data sources in the prior art, two kinds of data with different characteristics are collected and processed in different modes, so that the knowledge graph construction can be more complet