Cyber-Physical-Social Model for Service Recommendation in the Internet of Things

Table 5

The time complexity comparison of different models.

Models	Time complexity
EDC	O(n^4)
FST	O(n^3 + n^2)
TSItemCF	O(n^3 + n^2)
SORec	O(n^3 + n^2)
CPSM	O(n^3 + n^2)