CFAL

  • warning: Creating default object from empty value in /homepages/5/d120552937/htdocs/neil/drupal/or/modules/taxonomy/taxonomy.pages.inc on line 34.
  • : Function split() is deprecated in /homepages/5/d120552937/htdocs/neil/drupal/or/modules/filter/filter.module on line 884.
  • : Function split() is deprecated in /homepages/5/d120552937/htdocs/neil/drupal/or/modules/filter/filter.module on line 884.

Work Log

Average MAE over 25 randomAL runs:


0.84 0.83 0.83 0.83 0.83 0.83 0.82 0.83 0.83 0.83 0.83 0.83 0.83 0.83 0.83 0.83 0.83 0.83 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82

Problem: The numbers are not decreasing much (contradictory to expectations)

ToDo: Need to find the problem - check the code

Log

It is not caused by the old bug in GenericUserBasedRecommender

Correlation

The problem might lie in the correlation function.  When using PearsonCorrelation get very bad results MAE = max; when using UnceteredPearson Correlation get much better results MAE=0.9.

There was a small bug in the code (submitted to the SourceForge).

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