Please Can You provide dataset preprocessed of youchoose. I can't reproduce results on this dataset. Something maybe wrong on your paper. If I you preprocess youchoose from sr-gnn(https://github.com/CRIPAC-DIG/SR-GNN) the statistics is not same in your paper.
And also, Did you ignored session has length higher 20 like you did in the digentical.
Thank you.