The ontology Knowledge Base harvests 22 million triples、1.62 million instances、1,000 concepts and 4,000 attributes. The sources of the knowledge base include the annotation library and the external source library. The annotation library derives from the textbook, and the external source library is extracted from encyclopedia and Internet data.
The knowledge graph has the ability to store billion-level graph data.It supports graph search, reasoning and query. The user can queried the graph through the SPARQL query language.
SPARQL is a query language for RDF that supports simple queries and complex reasoning.
The Question Answering System focuses on the factoid Question of K12 Education and strives to answer the natural language questions accurately.The system provides services on the Internet.
It can help primary and secondary school students to review the main knowledge points of the nine disciplines.
▲ 问题： 莎士比亚的四大悲剧是哪四部？
(What are the four tragedies Shakespeare wrote？)
(Hamlet, Othello, King Lear, Macbeth)
The Question Answering System focuses on the factoid Question of K12 Education and provides accurate answers for students. The system based on the Knowledge Graph and the textbook。