How to build an adaptive learning/recommendation system for a question bank? [D]

Excerpt

Hey! Can you tell me how you would go about building a recommendation engine for our question bank? The idea is that it understands a student’s strengths and weaknesses and recommends questions accordingly — more questions around the areas they’re weak in, but without making them so difficult that they feel demotivated. I also want it to occasionally bring back questions from older topics to check whether the student has forgotten something. Based on how they perform, it could then decide whethe