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Experiments

The goal of this experimental evaluation is to empirically investigate the actual speedups that can be obtained by re-implementing ILP systems so that they use the pack execution mechanism. At this moment such re-implementations exist for the TILDE and WARMR systems, hence we have used these for our experiments. These re-implementations are available within the ACE data mining tool, available for academic use upon request.4We attempt to quantify (a) the speedup of packs w.r.t. to separate execution of queries (thus validating our complexity analysis), and (b) the total speedup that this can yield for an ILP system.

The data sets that we have used for our experiments are the following:

The experiments were run on SUN workstations: a Sparc Ultra-60 at 360 MHz for TILDE, a Sparc Ultra-10 at 333 Mhz for WARMR. TILDE and WARMR were run with their default settings, except where mentioned differently.



Subsections
next up previous
Next: Tilde Up: Improving the Efficiency of Previous: Level-wise Frequent Pattern Discovery
Hendrik Blockeel 2002-02-26