5.4 Transformer 5.4 TransformerCVNLP Transformer AI Attention Mechanism TransformerCVNLP“”BERTGPT “” Transformer“” “”RNNLSTM“”“” “”“”“” Query, Q Key, K Value, V QueryKey“”“”Softmax“”Value“”“” Mermaid Transformer “” Transformer “”2017Google Brain“Attention Is All You Need” TransformerRNNCNN Transformer“”- Transformer-Encoder-Decoder Seq2Seq Encoder