Efficient Personalized Recommendation Based on Federated Learning with Similarity Ciphertext Calculation

Algorithm 2

Update Reliability score.

	Input: , , ,
	Output:
(24)	Eachdoes:
(25)	;
	for do
(26)	calculate following equation (22);
(27)	;
(28)	ifthen
(29)	send to the Cloud server;
(30)	;
(31)	end
(32)	end
(33)	The Cloud server does:
(34)	for each do
(35)	fordo
(36)	calculate following equation (23);
	ifthen
(37)	calculate following equation (24);
(38)	end
(39)	end
(40)	calculate following equation (25);
(41)	;
(42)	end
(43)	return