?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nguyen%2C+Van+Nhat&rft.aulast=Nguyen&rft.aufirst=Van+Nhat&rft.date=22+November+2018&rft.title=Relation+Extraction+in+Vietnamese+Text+via+Piecewise+Convolution+Neural+Network+with+Word-Level+Attention&rft.genre=proceeding