Construction of domain knowledge graph based on open source intelligence

In order to deeply tap the potential information of open source intelligence, facilitate people to understand domain knowledge and build a domain knowledge graph. First, we use web crawler technology to crawl open source data, and then we use word segmentation and other methods to preprocess the data. Then we use deep learning methods to extract entities, attributes, and relationships from the data to establish a domain knowledge base. Finally, we build a domain knowledge graph to facilitate people to search and query related domain knowledge, and improve the efficiency and quality of network search.