org.apache.sysds.runtime.compress.colgroup.dictionary

Class DictionaryFactory

java.lang.Object

org.apache.sysds.runtime.compress.colgroup.dictionary.DictionaryFactory

public class DictionaryFactory
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DictionaryFactory.Type

Constructor Summary

Constructors

Constructor and Description
DictionaryFactory()

Method Summary

Modifier and Type	Method and Description
static ADictionary	create(ABitmap ubm)
static ADictionary	create(ABitmap ubm, double sparsity)
static ADictionary	create(ABitmap ubm, double sparsity, boolean withZeroTuple)
static ADictionary	createWithAppendedZeroTuple(ABitmap ubm)
static ADictionary	createWithAppendedZeroTuple(ABitmap ubm, double sparsity)
static long	getInMemorySize(int nrValues, int nrColumns, double tupleSparsity, boolean lossy)
static ADictionary	moveFrequentToLastDictionaryEntry(ADictionary dict, ABitmap ubm, int nRow, int largestIndex)
static ADictionary	read(DataInput in)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DictionaryFactory

public DictionaryFactory()

Method Detail

read

public static ADictionary read(DataInput in)
                        throws IOException

Throws:

IOException

getInMemorySize

public static long getInMemorySize(int nrValues,
                                   int nrColumns,
                                   double tupleSparsity,
                                   boolean lossy)

create

public static ADictionary create(ABitmap ubm)

create

public static ADictionary create(ABitmap ubm,
                                 double sparsity,
                                 boolean withZeroTuple)

create

public static ADictionary create(ABitmap ubm,
                                 double sparsity)

createWithAppendedZeroTuple

public static ADictionary createWithAppendedZeroTuple(ABitmap ubm)

createWithAppendedZeroTuple

public static ADictionary createWithAppendedZeroTuple(ABitmap ubm,
                                                      double sparsity)

moveFrequentToLastDictionaryEntry

public static ADictionary moveFrequentToLastDictionaryEntry(ADictionary dict,
                                                            ABitmap ubm,
                                                            int nRow,
                                                            int largestIndex)