arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2401.10641cs.SIcs.AI
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大型有向图上基于 Truss 的社区搜索的有效索引

An Effective Index for Truss-based Community Search on Large Directed Graphs

Central South University of Forestry and Technology(中南林业科技大学);State University of New York(纽约州立大学)

Wei Ai, CanHao Xie, Tao Meng, Yinghao Wu, KeQin Li

AI总结:

针对大型有向图中最大 D-truss 检索开销高的问题,提出 D-truss-connected 关系并构建 ConDTruss 索引,实现理论最优的高效社区搜索。

摘要:

社区搜索是社区检测的一个衍生方向,支持在线、个性化的社区发现,并已在海量真实网络中得到广泛应用。近年来,尽管针对无向图已经开展了大量研究,但有向图中的社区搜索问题仍需得到更多关注。最近提出的 D-truss 模型在所检索社区的质量方面取得了良好效果。然而,现有基于 D-truss 的工作无法在大型图上执行高效的社区搜索,因为检索最大 D-truss 会消耗过多计算资源。为克服这一问题,我们引入一种创新的合并关系,称为 D-truss-connected,用于刻画 D-truss 内部边的固有密度和内聚性。该关系使我们能够将原始图中的所有边划分为一系列 D-truss-connected 类。随后,我们基于 D-truss-connected 构建一个简洁紧凑的索引 ConDTruss。借助 ConDTruss,最大 D-truss 检索的效率将得到大幅提升,使其成为一种理论上最优的方法。在大型有向图上进行的实验评估证明了我们所提方法的有效性。

英文摘要:

Community search is a derivative of community detection that enables online and personalized discovery of communities and has found extensive applications in massive real-world networks. Recently, there needs to be more focus on the community search issue within directed graphs, even though substantial research has been carried out on undirected graphs. The recently proposed D-truss model has achieved good results in the quality of retrieved communities. However, existing D-truss-based work cannot perform efficient community searches on large graphs because it consumes too many computing resources to retrieve the maximal D-truss. To overcome this issue, we introduce an innovative merge relation known as D-truss-connected to capture the inherent density and cohesiveness of edges within D-truss. This relation allows us to partition all the edges in the original graph into a series of D-truss-connected classes. Then, we construct a concise and compact index, ConDTruss, based on D-truss-connected. Using ConDTruss, the efficiency of maximum D-truss retrieval will be greatly improved, making it a theoretically optimal approach. Experimental evaluations conducted on large directed graph certificate the effectiveness of our proposed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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