Question about obtaining the embedding.

[Zonghan666]

Hi, thanks for your great work! I am a little bit confused about the usage of the embedding layers. Since we have two different embedding vectors for both the user and the item. Should I just use one of the two vectors or simply fuse them by concatenating them if I want to perform itemcf or usercf in the recall stage of a recommendation system.

Thanks.

[ucasiggcas]

hi,I have the same question, but the result of simply concatenation is not good for U2I
in leave-one-out test,the HR@50 is less than 0.01