Abstract
Community search, which aims to retrieve important communities (i.e., subgraphs) for a given query vertex, has been widely studied in the literature. In the recent, plenty of research is conducted to detect influential communities, where each vertex in the network is associated with an influence value. Nevertheless, there is a paucity of work that can support personalized requirement. In this paper, we propose a new problem, i.e., maximal personalized influential community (MPIC) search. Given a graph G, an integer k and a query vertex u, we aim to obtain the most influential community for u by leveraging the k-core concept. To handle larger networks efficiently, two algorithms, i.e., top-down algorithm and bottom-up algorithm, are developed. To further speedup the search, an index-based approach is proposed. We conduct extensive experiments on 6 real-world networks to demonstrate the advantage of proposed techniques.
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Acknowledgments
Xiaoyang Wang is supported by NSFC61802345. Chen Chen is supported by ZJNSF LQ20F020007.
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Wu, Y., Zhao, J., Sun, R., Chen, C., Wang, X. (2020). Efficient Personalized Influential Community Search in Large Networks. In: Wang, X., Zhang, R., Lee, YK., Sun, L., Moon, YS. (eds) Web and Big Data. APWeb-WAIM 2020. Lecture Notes in Computer Science(), vol 12317. Springer, Cham. https://doi.org/10.1007/978-3-030-60259-8_7
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DOI: https://doi.org/10.1007/978-3-030-60259-8_7
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