| Name | Description | Type | Package | Framework |
| LogLikelihood | Class | org.apache.mahout.math.stats | Apache Mahout | |
| LogLikelihood .ScoredItem | Class | org.apache.mahout.math.stats.LogLikelihood | Apache Mahout | |
| OnlineExponentialAverage | Computes an online average that is exponentially weighted toward recent time-embedded samples. | Class | org.apache.mahout.math.stats | Apache Mahout |
| OnlineSummarizer | Computes on-line estimates of mean, variance and all five quartiles (notably including the median). | Class | org.apache.mahout.math.stats | Apache Mahout |