Parameterized Clique on Scale-Free Networks
Parameterized Clique on Scale-Free Networks
复制标题
无标度网络上的参数化团
DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
Anton Krohmer
中科院分区:
文献类型:
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作者:
T. Friedrich;Anton Krohmer
Finding cliques in graphs is a classical problem which is in general NP-hard and parameterized intractable. However, in typical applications like social networks or protein-protein interaction networks, the considered graphs are scale-free, i.e., their degree sequence follows a power law. Their specific structure can be algorithmically exploited and makes it possible to solve clique much more efficiently. We prove that on inhomogeneous random graphs with n nodes and power law exponent γ, cliques of size k can be found in time \(\mathcal{O}(n^2)\) for γ ≥ 3 and in time \(\mathcal{O}(n\, \exp(k^4))\) for 2 < γ < 3.