Parameter analysis. (A) The mean RMSE w.r.t. different q_s and q_g for generating random walks in $Gs$ and $Gg$⁠. (B) The mean RMSE w.r.t. different path lengths k_s and k_g, and the number of Impeller layers L. (C) The L1 distance, cosine similarity, and RMSE w.r.t. different number of paths T_s and T_g. (D) The L1 distance, cosine similarity and RMSE w.r.t. different embedding dimensions $demb(l)$⁠.