Package org.apache.sysds.runtime.compress.colgroup
package org.apache.sysds.runtime.compress.colgroup
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ClassDescriptionAbstract Class that is the lowest class type for the Compression framework.Public super types of compression ColGroups supportedBase class for column groups encoded Encoded in a compressed manner.Base class for column groups encoded with various types of bitmap encoding.Abstract class for column group types that do not perform matrix Multiplication, and decompression for performance reasons but instead transforms into another type of column group type to perform that operation.Abstract class for all the column groups that use preAggregation for Left matrix multiplications.Column group that sparsely encodes the dictionary values.Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC).Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC).Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC) whose mapping vector is additionally lzw compressed.Class to encapsulate information about a column group that is first delta encoded then encoded with dense dictionary encoding (DeltaDDC).Factory class for constructing ColGroups.IO for ColGroups, it enables read and write ColGroupsClass to encapsulate information about a column group that is encoded with simple lists of offsets for each set of distinct values.A group of columns compressed with a single run-length encoded bitmap.Column group that sparsely encodes the dictionary values.ColGroup for Patched Frame Of Reference.Column group that sparsely encodes the dictionary values.Column group that sparsely encodes the dictionary values.Column group that sparsely encodes the dictionary values.Column group type for columns that are stored as dense arrays of doubles.Special sideways compressed column group not supposed to be used outside of the compressed transform encode.Interface for frame of reference groups.