Hi!
I am working on RNN model.
I have several sentences of different length-I want to embed them and combine with extra features-binary list that describes each word (not important for the question what is actually means  ). This would serve as an input to LSTM.
I do know how to use padding, pack_padded_sequence etc and that recently a new method pack_sequence was intorduced.
However I do have a problem with the following issue:


How can I embed variable length sequences (no padding)?


If padding in embedding is mandatory,  how can I concat extra binary features with my embedding matrix? Do I assume correctly that extra features should be embedded as well with invariant values for 0 and 1?