Zhongwei Yang

I modified `lr=1e-3` (`1e-4` in your paper) and found that the convergence speed is much faster. Similar phenomena also appeared in other code reproduction repositories, e.g, [cr_1](https://github.com/Qdriving/Bert4Rec_Paddle2.0) and [cr_2](https://github.com/jaywonchung/BERT4Rec-VAE-Pytorch).

self.time_matrix_K_emb

13

https://github.com/pmixer/TiSASRec.pytorch/blob/e87342ead6e90898234432f7d9b86e76695008bc/model.py#L104 thx for your nice work about implementing 'TiSASRec' model with pytorch. here is a issue: 'self.item_num+1' may be written in 'args.time_span+1', although with the condition of item_num > time_span...