A comparison of three heuristics to choose the variable ordering for CAD

Published 23 May 2014 in cs.SC | (1405.6082v1)

Abstract: Cylindrical algebraic decomposition (CAD) is a key tool for problems in real algebraic geometry and beyond. When using CAD there is often a choice over the variable ordering to use, with some problems infeasible in one ordering but simple in another. Here we discuss a recent experiment comparing three heuristics for making this choice on thousands of examples.

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