Delta-DAGMM: A Free Rider Attack Detection Model in Horizontal Federated Learning

Table 7

Precision of different detection methods in Free-rider attack with 1000 participants and 10 attackers.

Detection Method	Detection type	Precision (%)
		Simple attack (i)	Simple attack (ii)	Simple attack (iii)	Optimized attack (i)	Optimized attack (ii)
Delta-DAGMM	Single	98.9	97.1	100	87.8	86.3
	overall	100	99.9	100	97.3	97
DAGMM	Single	95.9	95.2	62.4	57.2	55.7
	overall	99.6	99.3	77.2	72.1	69.9
DAGMM(ST)	Single	97.1	96.1	100	70.3	68.5
	overall	99.8	99.7	100	82.6	81.6