Question about the reference numbers

[MFalam]

Hello, thanks for this interesting work!

I have a question about the reference numbers in your paper. As far as I understand, the number of references is either set to 1 or 5 for the best performance.

However, in Section 5.2 page No. 9, you mentioned that "our attention score with a reference of size 64 is only 1000×64, which illustrates the discussion". I did not understand the "reference of size 64". May I know, this 64 indicates the number of references, or do you mean something else?

Many thanks in advance, and I appreciate if you can clear my doubt to better go through your paper.