https://d2l.ai/chapter_recurrent-modern/encoder-decoder.html
- I think encoder and decoder don’t have to be the same type of neural network
- Question answering. I applied this approach to the Conversational Question Answering (CoQA) dataset. Perplexity was 1.6. Not too bad for a very simple model.
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I’ve seen Encoder/Decoder approaches used in recommender system applications before.
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I’ve seen the encoder initialized with pretrained weights. Can decoder be pretrained as well? My hunch is that if the decoder is pretrained, then encoder also must be pretrained - otherwise the representation going into the decoder will be different from the pretraining representation.