Automatically difficulty grading method of "instruction system" question bank based on knowledge tree.
Chengcheng LiuJin ZhangYang ZhouShunjian TianXiaoli GongXin WeiPublished in: GECCO (Companion) (2017)
Keyphrases
- synthetic data
- classification method
- support vector machine
- cost function
- dynamic programming
- tree structure
- detection method
- support vector machine svm
- knowledge representation
- experimental evaluation
- significant improvement
- prior knowledge
- pairwise
- preprocessing
- high precision
- data sets
- evaluation method
- detection algorithm
- expert systems
- computational complexity