During training, base Transformer performs about 0.714 steps per second while LPE + LSA model can process around 0.328.
to show the complementary of these two methods, we also placed all edges of lattice in a single sequence in a relative right order based on their first character and use normal positional encodings and our LSA method; we obtained a BLEU of 40.90 which is 0.13 higher than single LSA model.