Table 3.

Mean testing performance (in [%]) of 50 repetitions of the semisupervised FL model. Exploring the relationship between the proportion in the first PU (PU₁) and model performance. Fixed parameters: The proportion in the second PU (PU₂) is 0.5. The number of trees in SecureBoost_{{1, 2, 3}} is 10, 20, and 30, respectively, and the depth of the trees is 3.

PU1 proportion	PU2 proportion	Acc	UAR	UF1
0.1	0.5	80.601	80.687	80.600
0.2	0.5	81.353	81.411	81.350
0.3	0.5	84.360	84.338	84.351
0.35	0.5	82.105	82.108	82.096
0.4	0.5	82.105	82.136	82.099
0.5	0.5	82.105	82.136	82.099