[Retracted] Exploration on the Action-Oriented Teaching Mode of Higher Vocational Political Courses under the Background of Internet + Education

Table 2

Example of user rating matrix.

	Item 1	Item 2	Item 3	Item 4	Item 5
User 1	2	1	3	4	5
User 2	1	1	2	3	4
User 3	5	3	2	4	1
User 4	1	4	4	2	3