# SAGAN - is there a mistake in the original paper?

in the original paper the following scheme of the self-attention appears: https://arxiv.org/pdf/1805.08318.pdf

In a later overview: https://arxiv.org/pdf/1906.01529.pdf

this scheme appears: referring the original paper.

My understanding more correlates with the second paper scheme, as: Where there is two dot-product operations and three hidden parametric matrices: $$W_k, W_v, W_q$$ which corresponds to $$W_f, W_g, W_h$$ without $$W_v$$ as it in the original paper explanation, which is as following:

Is this a mistake in the original paper ?

• I don't understand where the mistake is. Can you please clarify where the mistake is? – nbro Mar 29 at 10:36
• I think I was confused by the notation of v as a vector function, I thought it is a vector and then it didn't work out. So eventually there is non. – Ilya.K. Mar 29 at 14:10