A new chi-square approximation to the distribution of non-negative definite quadratic forms in non-central normal variables.
Huan LiuYongqiang TangHao Helen ZhangPublished in: Comput. Stat. Data Anal. (2009)
Keyphrases
- chi square
- logistic regression
- information gain
- confidence intervals
- random variables
- kl divergence
- mutual information
- probability distribution
- correlation coefficient
- objective function
- conditional probabilities
- closed form
- marginal distributions
- gaussian distribution
- text categorization
- hidden variables
- labeled data
- semi supervised