Hybrid Algorithm Based on Content and Collaborative Filtering in Recommendation System Optimization and Simulation

Table 4

Experimental results of different sizes of nearest neighbor sets.

Proportion of training set (x)	Mean absolute deviation MAE
	Recommendation algorithm based on user collaborative filtering	Mixed mode recommendation algorithm
10	0.7265	0.7163
20	0.7233	0.7117
30	0.7212	0.7103
40	0.7235	0.7115
50	0.7274	0.7152
60	0.7322	0.7227
90	0.7451	0.7284
160	0.7263	0.7164