Seq2seq

Input a sequence, output a sequence. The output length is determined by model.

• Speech Recognition
• Machine Translation
• Speech Translation
• Text-to-Speech (TTS)
• Question Answering (QA) (ChatBot)
• Multi-label Classification

最早 Google 翻译用的 Seq2seq，现在可能是 bert 或者 gpt

• Encoder 编码器：RNN
• Decoder 解码器：