Non-Negative Factorizations Module (nnmf_gui)

Assume we have processed a collection with tmg_gui, construct a TDM with 1,033 documents and 12,184 terms (corresponding to the well-known MEDLINE collection) and store the results to "TMG_HOME/data/medline". Assume then, we want to construct a non-negative factorization of the TDM, using the Multiplicative Update algorithm initializing by the block NNDSVD technique for the following input:

  • initialization: Block NNDSVD

  • refine factors: yes

  • method: Multiplicative update

  • number of iterations: 10

  • compute SVD with: Propack

  • clustering algorithm: PDDP

  • principal directions: 1

  • maximum number of PCs: -

  • variant: basic

  • number of clusters: 10

  • number of factors: 10

and you want to store results at directory "medline".

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