F ¯ v , i = ∑ i ≠ j | ∑ k = 1 N C ⁡ c 𝖨 U ⁢ ( i ) , 𝖨 C ⁢ ( k ) , 𝖨 U ⁢ ( j ) ⁢ ϕ ^ 𝖨 C ⁢ ( k ) ( 1 ) | ¯ 𝐹 𝑣 𝑖 𝑖 𝑗 semantic-sum 𝑘 1 Nc 𝑐 𝖨 𝑈 𝑖 𝖨 𝐶 𝑘 𝖨 𝑈 𝑗 1 ^ italic-ϕ 𝖨 𝐶 𝑘 \displaystyle\overline{F}_{v,i}=\sum_{i\neq j}|\sum_{k=1}^{N_{C}}c_{\mathsf{I}_{U}(i),\mathsf{I}_{C}(k),\mathsf{I}_{U}(j)}\hat{\phi}_{\mathsf{I}_{C}(k)}^{(1)}|