class NMFactorization extends AnyRef
The NMFactorization class factors a matrix 'v' into two non negative matrices
'w' and 'h' such that 'v = wh' approximately.
- See also
en.wikipedia.org/wiki/Non-negative_matrix_factorization
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NMFactorization(v: MatrixD, loops: Int = 10, r: Int = 0)
- v
the matrix to be factored
- loops
the number of iterations before checking the termination condition
- r
factor the m-by-n matrix 'v' in to two factors: an m-by-r and r-by-n matrix
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def
factor(): (MatrixD, MatrixD)
Factor the original matrix 'v' into left 'w' and right 'h' matrices by iteratively calling the 'update' method until the difference between 'v' and its approximation 'vv = w * h' is sufficiently small.
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