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The rainbow spanning forest problem
DOI:10.1007/s00500-017-2540-8.png)
Abstract
En 中文
Given an undirected and edge-colored graph G, a rainbow component of G is a subgraph of G having all the edges with different colors. The Rainbow Spanning Forest Problem consists of finding a spanning forest of G with the minimum number of rainbow components. The problem is known to be NP-hard on general graphs and on trees. In this paper, we present an integer linear mathematical formulation and a greedy algorithm to solve it. To further improve the results, we applied a multi-start scheme to the greedy algorithm. Computational results are reported on randomly generated instances.
Keywords:
Graph theory
Edge-colored graph
Rainbow components
Multi-start scheme
Heterochromatic components
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