共 40 条
- [26] Using Mixed-Effects Modeling to Analyze Different Grain-Sized Skill Models in an Intelligent Tutoring System IEEE TRANSACTIONS ON LEARNING TECHNOLOGIES, 2009, 2 (02): : 79 - 92
- [28] A new method of spectral decomposition of covariance matrix in mixed effects models and its applications Science in China Series A: Mathematics, 2005, 48 : 1451 - 1464
- [30] A new method of spectral decomposition of covariance matrix in mixed effects models and its applications SCIENCE IN CHINA SERIES A-MATHEMATICS, 2005, 48 (11): : 1451 - 1464