{"article":{"@attributes":{"key":"journals\/program\/ZhangMSB20","mdate":"2023-08-28"},"author":["Xiaoming Zhang","Mingming Meng","Xiaoling Sun","Yu Bai"],"title":"FactQA: question answering over domain knowledge graph based on two-level query expansion.","pages":"34-63","year":"2020","volume":"54","journal":"Data Technol. Appl.","number":"1","ee":["https:\/\/doi.org\/10.1108\/DTA-02-2019-0029","https:\/\/www.wikidata.org\/entity\/Q114824806"],"url":"db\/journals\/program\/program54.html#ZhangMSB20"}}