DiscreteBlosum          Discrete blosum descriptor.
DiscreteSequentialBlosumTwoParts
                        Discrete sequential blosum descriptor with
                        split number=2.
DiscreteSequentialSparseFiveParts
                        Discrete sequential sparse descriptor with
                        split number=5.
DiscreteSequentialSparseFourParts
                        Discrete sequential sparse descriptor with
                        split number=4.
DiscreteSequentialSparseThreeParts
                        Discrete sequential sparse descriptor with
                        split number=3.
DiscreteSequentialSparseTwoParts
                        Discrete sequential sparse descriptor with
                        split number=2.
DiscreteSequentialTdTwoParts
                        Discrete sequential 3D descriptor with split
                        number=2.
DiscreteSparse          Discrete sparse descriptor.
DiscreteTd              Discrete 3D descriptor.
IncrementalDiscreteSparse
                        Incremental discrete sparse descriptor.
LastFirstDiscreteSparse
                        Last first discrete sparse descriptor.
SequentialBlosum        Sequential blosum descriptor.
SequentialDiscreteBlosum
                        Sequential discrete blosum descriptor with step
                        size=2.
SequentialDiscreteSparse
                        Sequential discrete sparse descriptor with step
                        size=2.
SequentialDiscreteTd    Sequential discrete 3D descriptor with step
                        size=2.
SequentialSparse        Sequential sparse descriptor.
SequentialTd            Sequential 3D descriptor.
ShiftedDiscreteSparse   Discrete sparse descriptor.
