Overlapping Community Detection in Networks via Sparse Spectral Decomposition
Overlapping Community Detection in Networks via Sparse Spectral Decomposition
复制标题
通过稀疏谱分解进行网络中的重叠社区检测
DOI:
10.1007/s13171-021-00245-4
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Levina, Elizaveta
中科院分区:
文献类型:
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作者:
Arroyo, Jesús;Levina, Elizaveta
We consider the problem of estimating overlapping community memberships in a network, where each node can belong to multiple communities. More than a few communities per node are difficult to both estimate and interpret, so we focus on sparse node membership vectors. Our algorithm is based on sparse principal subspace estimation with iterative thresholding. The method is computationally efficient, with computational cost equivalent to estimating the leading eigenvectors of the adjacency matrix, and does not require an additional clustering step, unlike spectral clustering methods. We show that a fixed point of the algorithm corresponds to correct node memberships under a version of the stochastic block model. The methods are evaluated empirically on simulated and real-world networks, showing good statistical performance and computational efficiency.
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DOI:
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发表时间:
2017-05
期刊:
arXiv: Methodology
影响因子:
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作者:
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通讯作者:
Patrick Rubin-Delanchy;C. Priebe;M. Tang
DOI:
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发表时间:
2021
期刊:
Mining Complex Networks
影响因子:
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DOI:
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发表时间:
2017
期刊:
影响因子:
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作者:
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通讯作者:
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