Abstract
This paper investigates the vertex coloring problem in an uncertain graph in which all vertices are deterministic, while all edges are not deterministic and exist with some degree of belief in uncertain measures. The concept of the maximal uncertain independent vertex set of an uncertain graph is first introduced. We then present a degree of belief rule to obtain the family of maximal uncertain independent vertex sets. Based on the maximal uncertain independent vertex set, some properties of the separation degree of an uncertain graph are discussed. Following that, the concept of an uncertain chromatic set is introduced. Then, a maximum separation degree algorithm is derived to obtain the uncertain chromatic set. Finally, numerical examples are presented to demonstrate the application of the vertex coloring problem in uncertain graphs and the effectiveness of the maximum separation degree algorithm.
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This work was supported by the National Natural Science Foundation of China (Nos. 11626234, 61703438), and the Key Project of Hubei Provincial Natural Science Foundation (No. 2015CFA144), China.
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Chen, L., Peng, J. & Ralescu, D.A. Uncertain vertex coloring problem. Soft Comput 23, 1337–1346 (2019). https://doi.org/10.1007/s00500-017-2861-7
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DOI: https://doi.org/10.1007/s00500-017-2861-7