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

Interface CompressedSizeEstimatorFactory

public interface CompressedSizeEstimatorFactory

Field Summary

Fields

Modifier and Type	Field	Description
static org.apache.commons.logging.Log	LOG

Method Summary

Static Methods

Modifier and Type	Method	Description
static CompressedSizeEstimator	createEstimator(MatrixBlock data, CompressionSettings cs, int k)	Create an estimator for the input data with the given settings and parallelization degree.
static CompressedSizeEstimator	createEstimator(MatrixBlock data, CompressionSettings cs, int sampleSize, int k)	Create an estimator for the input data with the given settings and parallelization degree.

Field Detail

LOG

static final org.apache.commons.logging.Log LOG

Method Detail

createEstimator

static CompressedSizeEstimator createEstimator(MatrixBlock data,
                                               CompressionSettings cs,
                                               int k)

Create an estimator for the input data with the given settings and parallelization degree.

Parameters:

data - The matrix to extract compression information from.

cs - The settings for the compression

k - The parallelization degree

Returns:

A new CompressionSizeEstimator used to extract information of column groups

createEstimator

static CompressedSizeEstimator createEstimator(MatrixBlock data,
                                               CompressionSettings cs,
                                               int sampleSize,
                                               int k)

Create an estimator for the input data with the given settings and parallelization degree.

Parameters:

data - The matrix to extract compression information from.

cs - The settings for the compression

sampleSize - The number of rows to extract from the input data to extract information from.

k - The parallelization degree

Returns:

A new CompressionSizeEstimator used to extract information of column groups