| "Magic Set Computation for Stratified Databases," I. Balbin, G.S. Port and K. Ramamohanarao, Dept. of Computer Science, University of Melbourne, Australia, TR 87/3. -- -- - 36 - |
....r can be deleted unless it corresponds to p h . The intuition is that the magic literal in the rules defining a predicate q a already achieves the restriction that is obtained by adding the corresponding magic predicate to an occurrence of q a . The rewriting algorithm is simplified in [Balbin et al. 87] by not introducing any of the redundant magic predicates. 5. Generalized Supplementary Magic Sets The Generalized Magic Sets algorithm for rewriting a set of adorned rules succeeds in implementing a given set of sips, but it suffers from the drawback that many facts are evaluated repeatedly. If ....
"Magic Set Computation for Stratified Databases," I. Balbin, G.S. Port and K. Ramamohanarao, Dept. of Computer Science, University of Melbourne, Australia, TR 87/3. -- -- - 36 -
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