Optimization of English Learning Platform Based on a Collaborative Filtering Algorithm

Table 1

Difficulty and ease of analysis.

Evaluation angle	Problem situation	Degree of difficulty	Points
Super vocabulary	Nonsuperclass vocabulary	Simple	1
	Have 1 or 2 superclass vocabulary	Medium	2
	More than two superclass vocabulary	Difficult	3
Answer similarity	The answers are not similar	Simple	4
	Both answers are similar	Medium	5
	More than three answers are similar	Difficult	7
Survey the number of knowledge points	Examine a knowledge point	Simple	2
	Investigate two knowledge points	Medium	3
	Investigate more than two knowledge points	Difficult	2