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CW 293
H. Blockeel, B. Demoen, G. Janssens, H. Vandecasteele, W. Van Laer
Two advanced transformations for improving the efficiency of an ILP system
Abstract
Relatively simple transformations can speed up the execution of queries for data mining considerably and therefore ILP systems have since long used such optimisations. A recent publication brought to light that little is widely known on what implementations actually do. This paper describes optimizing query transformations that are implemented in existing systems as well as new transformations. Together they improve on some published simple transformations and offer a context which generalizes them. We also discuss the relationship with query pack execution and the potential use of program analysis for more powerful query transformations.
report.pdf / mailto: H. Blockeel