Feedback
It would have been better if you had provided some information about LSTM and its formulation. Besides, the reason that makes you think they are a good choice for this problem should be clearly stated. What are "padding and truncating techniques"? If you do not want to explain them explicitly, I think you have to refer to a paper or add a link to help the reader understand these concepts. Stating some of the hyperparameters that you have checked before getting those results can help make your model more reliable for the reader. It is helpful to know the effect of regularization on your model too.