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

- Class Summary
  Class | Description
  --- | ---
  ACostEstimate | A cost estimator interface.
  ComputationCostEstimator |
  CostEstimatorBuilder |
  CostEstimatorFactory |
  DistinctCostEstimator | A Cost based estimator that based the compression and co-coding cost on the number of distinct elements in the column groups.
  HybridCostEstimator |
  InstructionTypeCounter |
  MemoryCostEstimator |

- Enum Summary
  Enum | Description
  --- | ---
  CostEstimatorFactory.CostType |