| 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. |