BERT BERT word embedding BM25 CNN dictionary Cantonese CoNLL Doc2vec FAQ classification Korean dataset Korean syntax LSTM LaTeX decompilation NLP Natural Language Processing (NLP) OntoNotes R-GCNs TF−ISF WGAN-based response generation XGA model adversarial attack adversarial example antonymy detection attention mechanism attention model bic Book Industry Communication::K Economics, finance, business & management::KN Industry & industrial studies::KNT Media, information & communication industries::KNTX Information technology industries bic Book Industry Communication::U Computing & information technology::UY Computer science bidirectional LSTM CRF bidirectional RNN bidirectional long short-term memory (bidirectional LSTM) bilingual translation