Improving Scalability in a Scientific Discovery System by Exploiting Parallelism

Gehad Galal, Diane J. Cook, Lawrence B. Holder

The large amount of data collected today is quickly overwhelming researchers’ abilities to interpret the data and discover interesting patterns. Knowledge discovery and data mining approaches hold the potential to automate the interpretation process, but these approaches frequently utilize computationally expensive algorithms. This research outlines a general approach for scaling KDD systems using parallel and distributed resources and applies the suggested strategies to the SUBDUE knowledge discovery system. SUBDUE has been used to discover interesting and repetitive concepts in graph-based databases from a variety of domains, but requires a substantial amount of processing time. Experiments that demonstrate scalability of parallel versions of the SUBDUE system are performed using CAD circuit databases and artificially-generated databases, and potential achievements and obstacles are discussed.

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