The algorithm in action

>  each grey node represents a new question asked by Edplus

after the user gets it right a few times, it first turns orange and finally green when it has been mastered

>  hold the mouse over a node to see which question it is

>  the lines show relations between questions

 you can change the filters below to look at different types of relations, and explore the user’s knowledge clusters

>  the Edplus algorithm uses the relations to grow the knowledge clusters as quickly as possible

>  see how the algorithm compares against spaced repetition