some problem in papers

[ethan-phu]

1. I want to know how the r value in target:r in *graph.txt in the data set is obtained. Is it the value normalized by time?
2. In the paper, you said "To build the connection inside between source microblog and retweet, we first use multi-head attention to refine the representation of every retweet",but i did not get the construction of this relationship from the code, only directly input the source tweet into the multi head attention. So can i understand it this way, here is just the semantic relationship in the tweet.
   3.In part C of the paper, you introduced that user information u was introduced, but in the source code, I did not find anything related to this piece. Can you provide details?