Keyphrases
- hypothesis testing
- fixed length
- feature vectors
- variable length
- likelihood ratio
- hypothesis tests
- statistical tests
- hypothesis test
- robust statistical
- information retrieval
- test statistic
- decision trees
- class labels
- model selection
- training set
- similarity measure
- machine learning methods
- confidence intervals
- sample size
- error rate
- text mining
- feature space
- likelihood ratio test