# Package org.apache.sysds.runtime.compress.estim

- Interface Summary
  Interface | Description
  --- | ---
  CompressedSizeEstimatorFactory |

- Class Summary
  Class | Description
  --- | ---
  CompressedSizeEstimator | Main abstract class for estimating size of compressions on columns.
  CompressedSizeEstimatorExact | Exact compressed size estimator (examines entire dataset).
  CompressedSizeEstimatorSample |
  CompressedSizeInfo | A helper reusable object for maintaining information about estimated compression
  CompressedSizeInfoColGroup | Information collected about a specific ColGroup's compression size.
  EstimationFactors | Compressed Size Estimation factors.