I did some informal testing of SPIN versus Jena rules performance in TopBraid Composer 3.3.2. I created a schema model, and instance data model, and separate models containing equivallent Jena and SPIN rules to infer familial relationships. I used a construct query to create synthetic family data (without saving). I ran tests on 10, 100, 1000 families (without saving) and collected statistics. For 1000 families SPIN at 40s was 5% faster than Jena . I had some issues with Composer and restarted it and accidentally saved my synthetic data after being prompted. After the restart and reload of the models, the same inferences (SPIN and Jena Rules) on 1000 families took less than a second, i.e., > 40x speedup. I am trying to understand if this is a TopBraid or Jena phenomenon and what caused the speedup and how I can leverage it when doing inferences on freshly created information.
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