Fig. 5

Performance sensitivity analysis of SURREAL. (a) Expansion process for |N_E(u)|≥|N_R(u)|=400. By increasing the size of N_E(u), the corresponding Micro-F1 score decreases (b) Refinement process for |N_R(u)|≤|N_E(u)|=1200. By increasing the size of N_R(u), the corresponding Micro-F1 score increases (c) Vary \(log^{d}_{2}\) from 4–9. Micro-F1 score increases up to \(log^{d}_{2}=7\), and then it starts to decrease