User-Item Missing Ratings Complement Based on Two-Dimensional Normal Distribution.
Xiufeng XiaXiang LiuXiao-Ming LiPublished in: DBTA (2010)
Keyphrases
- normal distribution
- standard deviation
- distribution free
- covariance matrix
- random variables
- probability density function
- missing data
- three dimensional
- collaborative filtering
- probability distribution
- score distributions
- machine learning
- objective function
- correlation coefficient
- gaussian distribution
- machine learning methods
- upper bound