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

Interface Summary
Util

Class Summary
ACount<T>
ACount.DArrCounts
ACount.DCounts
ACountHashMap<T>
CompressRDDClean
DblArray: Helper class used for bitmap extraction.
DblArrayCountHashMap
DblArrayIntListHashMap: collect an array list of the indexes with the same hashes.
DblArrayIntListHashMap.DArrayIListEntry
DoubleCountHashMap
DoubleIntListHashMap: This class provides a memory-efficient replacement for `HashMap<Double,IntArrayList>` for restricted use cases.
DoubleIntListHashMap.DIListEntry
HashMapLongInt
IntArrayList