Classes
| Constraint | Base class for Constraints. |
| MaxNorm | Constrains the weights incident to each hidden unit to have a norm less than or equal to a desired value. |
| MinMaxNorm | Constrains the weights to have the norm between a lower bound and an upper bound. |
| NonNeg | Constrains the weights to be non-negative. |
| UnitNorm | Constrains the weights to have unit norm. |