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COS424-Assignment3

With and without directionality(Nora)

  1. SVD with numbers of interactions(Nora) http://scikit-learn.org/stable/modules/generated/sklearn.decomposition.TruncatedSVD.html

try with n_components = ~40,000 save out explained_variance_ratio_ : array, [n_components] and plot it to see best ones from those best one use that number as n_components and run again read out components small matrix: transpose * components = big matrix for each data point do row* column to get value truncate between 0 and 1

  1. Poisson-gamma matrix factorization model(non-negative factorization model)(Nora) http://scikit-learn.org/stable/auto_examples/applications/topics_extraction_with_nmf.html
  2. Mixture model (Nick) http://scikit-learn.org/stable/modules/classes.html#module-sklearn.mixture

Outputs: roc file(csv): fpr. tpr probs(csv): test value, probability

Create pretty graphs(Nick)

Results: violin plots ROC curves

Nick's Current Agenda Items: -Perform 2D plot of data clusters -Derive # of cluster centers from plot -Run GMM -Derive probabilities -Plot ROC curves, etc.

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