Two hybrid evolutionary algorithms for the rectilinear Steiner arborescence problem
Proceedings of the 2004 ACM symposium on Applied computing
A tree-based genetic algorithm for building rectilinear Steiner arborescences
Proceedings of the 8th annual conference on Genetic and evolutionary computation
Algorithms and theory of computation handbook
Angle-restricted steiner arborescences for flow map layout
ISAAC'11 Proceedings of the 22nd international conference on Algorithms and Computation
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A new approach for approximating the minimum rectilinear Steiner arborescence is presented. The approach yields a simple two-approximation algorithm that runs in O(nlogn) time. Unlike earlier approaches, this can be naturally extended to deal with situations where we have isothetic rectilinear obstacles. This gives us the first O(nlogn) two-approximation algorithm for the rectilinear Steiner arborescence problem in the presence of obstacles.