Returns a deep copy of self.

Returns the value of the cost function for the non-negative factorization of V = WH. The cost function is minimized by the factorization.

Determines whether the specified Object is equal to the current Object.

Serves as a hash function for a particular type.

Gets the Type of the current instance.

Provides the initial factors for the iteration process that computes W and H in the non-negative matrix factorization V = WH.

Updates the factors W and H in the non-negative matrix factorization V = WH.

Returns a String that represents the current Object.

Gets the smoothing matrix. The smoothing matrix is a positive symmetric matrix S defined as:

            S = (1 - theta)I + (theta/q)11'
            

where I is the identity matrix, 1 is a vector of ones and the parameter t is between 0 and 1, inclusive. See class description.

The Nonsmooth Nonnegative Matrix Factorization is defined as

V = WSH

where V, W, and H are the same as in the original NMF model. The positive symmetric matrix S is a "smoothing" matrix defined as:

            S = (1 - theta)I + (theta/q)11'