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BMC Bioinformatics
We show that certain monotonic polynomial time queries are not expressible in variants of Datalog. The proof techniques include lower bounds for monotone circuit size and a “Pumping Lemma” for Datalog queries. © 1995 by Academic Press, Inc.
Heinz Koeppl, Marc Hafner, et al.
BMC Bioinformatics
David W. Jacobs, Daphna Weinshall, et al.
IEEE Transactions on Pattern Analysis and Machine Intelligence
George Markowsky
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Journal of Global Optimization