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cs.DM2019★ 2 cited
Steepest ascent can be exponential in bounded treewidth problems
David A. Cohen, Martin C. Cooper, Artem Kaznatcheev +1
We investigate the complexity of local search based on steepest ascent. We show that even when all variables have domains of size two and the underlying constraint graph of variabl…
cs.DS2019
Representing fitness landscapes by valued constraints to understand the complexity of local search
Artem Kaznatcheev, David A. Cohen, Peter G. Jeavons
Local search is widely used to solve combinatorial optimisation problems and to model biological evolution, but the performance of local search algorithms on different kinds of fit…