A Deterministic Model for Determining Degree of Friendship Based on Mutual Likings and Recommendations on OTT Platforms

Algorithm 1

Algorithm Obj₃.

	Algorithm Obj3: Determines mutual liking between two users.
	Input: Name of user
	Output: Mutual liking between user and the rest of the users in the user set U =
	Begin
(1)	Compute the Euclidean distance between movie ratings using the following equation [25, 26]:
	.
	Where and qi are movie ratings and d(p, q) is the Euclidean distance between ratings of the common movies.
(2)	Compute the similarity, s1 of user with user before user has watched the recommended movies using the following equation [25]:
	.
	Where d(p, q) is the Euclidean distance between ratings of the common movies.
(3)	Computer the similarity, s2 of user with user after user has finished watching the recommended movies using the above equation.
(4)	Compute mutual liking between users’ and using the following equation:
	.
(5)	Recommend the selected movie Mi to user
	End