Maximum Weighted Edge Biclique Problem on Bipartite Graphs
Maximum Weighted Edge Biclique Problem on Bipartite Graphs
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DOI:
10.1007/978-3-030-39219-2_10
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发表时间:
2020-02
期刊:
影响因子:
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通讯作者:
Arti Pandey;Gopika Sharma;N. Jain
中科院分区:
文献类型:
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作者:
Arti Pandey;Gopika Sharma;N. Jain
For a graphG, a complete bipartite subgraph ofGis called a biclique ofG. For a weighted graph, where each edgehas a weight, theMaximum Weighted Edge Biclique(MWEB) problem is to find a bicliqueHofGsuch thatis maximum. The decision version of the MWEB problem is known to be NP-complete for bipartite graphs. In this paper, we show that the decision version of the MWEB problem remains NP-complete even if the input graph is a complete bipartite graph. On the positive side, if the weight of each edge is a positive real number in the input graphG, then we show that the MWEB problem is-time solvable for bipartite permutation graphs, and-time solvable for chain graphs, which is a subclass of bipartite permutation graphs.