Figure 7:

Further understanding of the important choices in our algorithm. The predictive value of the four attention mechanisms and their concatenations ($f_4^{u_1}$, $f_4^{u_2}$, $f_4^{u_3}$, $f_4^{u_4}$, and $f_4^{u_c}$ ) at the last layer of the fusion branch FiA-Net_fus.