An NP-Hard Crossing Minimization Problem for Computer Network Layout.

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Date
1986Author
Masuda, Sumio
Kashiwabara, Toshinobu
Nakajima, Kazuo
Fujisawa, Toshio
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A layout problem of computer communication network is formulated graph-theoretically as follows: "Given a simple graph G = (V,E), find an embedding of G with the minimum number of edge-crossings such that (i) the vertices in V are placed on the circumference of a circle C, and (ii) the edges in E are drawn only inside C." In this paper, this problem will be shown to be NP-hard. Therefore, it is very likely to be intractable.