Intelligent Course Plan Recommendation for Higher Education: A Framework of Decision Tree

Algorithm 3

CGR: course grouping recommendation algorithm.

Input: Decision tree .

Output: Course optimal paths.

1 for eachnode in do

2  ifis not be traversedthen

3   add processed token “T”;

4   if is an leaf then

5    (1) output the set of path that satisfy (, , ) with , ;

6    (2) delete any node labeled operators “”;

7   else

8    add into the current path set;

9   end

10  else

11   traverse the next according to Depth-first search (DFS).

12  end

13 end