Class ColoringDSatur

  • All Implemented Interfaces:
    ColoringAlgo

    public class ColoringDSatur
    extends ColoringAlgoAbstract
    The D-Satur coloring algorithm.

    The Saturation Degree (D-Satur) coloring algorithm is a greedy algorithm, namely it examine the vertices in some order and assign for each vertex the minimum (integer) color which is not used by its neighbors. It differ from other greedy coloring algorithms by the order it examine the vertices: the next vertex to be colored is the vertex with the highest number of colors in its neighborhood (adjacent vertices), also called saturation degree.

    The algorithm runs in \(O(m \log n)\) time assuming the number of colors is constant.

    Note that the result is an approximation for the minimum number of colors, as finding an optimal coloring is an NP-hard problem.

    Author:
    Barak Ugav
    See Also:
    Wikipedia
    • Constructor Detail

      • ColoringDSatur

        public ColoringDSatur()
        Create a new coloring algorithm object.

        Please prefer using ColoringAlgo.newInstance() to get a default implementation for the ColoringAlgo interface.