Hiện nay các hệ thống Question Answering thường được xây dựng dựa trên các knowledge bases, như DBpedia [11], YAGO [12], Freebase [13], nhằm khai thác những nguồn well defined data.
Currently the systems Question Answering is often based on the knowledge bases, such as DBpedia [11], [12] YAGO, Freebase [13], in order to exploit the sources well defined data.
Currently the Question Answering system often builds on the knowledge bases, as dbpedia [11], Yago [12], Freebase [13], in order to exploit the well defined data source.