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第一:快速交互式属性子图匹配

FIRST: Fast Interactive Attributed Subgraph Matching
课程网址: http://videolectures.net/kdd2017_du_attributed_subgraph/  
主讲教师: Boxin Du
开课单位: 视频讲座网
开课时间: 2017-10-09
课程语种: 英语
中文简介:
属性子图匹配是大型属性网络探索性挖掘的有力工具。在许多应用中(如团队网络科学、情报分析、财务信息学),用户可能不知道自己到底在寻找什么,因此需要用户根据当前匹配结果中发现的内容不断修改初始查询图。在这种交互式匹配场景中,一个主要的瓶颈是效率,因为简单地在修改后的查询图上重新运行匹配算法在计算上是禁止的。在本文中,我们提出了一系列有效且高效的算法(FIRST)来支持交互式属性子图匹配。提出的方法背后有两个关键思想。第一种方法是将属性子图匹配问题重新定义为跨网络节点相似度问题,其主要计算方法是求解查询图和底层数据图的Sylvester方程。第二个关键思想是探索初始查询和修改查询之间的平滑性,这允许我们增量地求解新的/更新的Sylvester方程,而不必从头重新求解它。实验结果表明:(1)当应用于6M+节点的网络时,我们的方法可以达到16倍的加速;(2)与现有方法相比,保持90%以上的准确率;(3)与查询图和数据图的大小成线性关系。
课程简介: Attributed subgraph matching is a powerful tool for explorative mining of large attributed networks. In many applications (e.g., network science of teams, intelligence analysis, finance informatics), the user might not know what exactly s/he is looking for, and thus require the user to constantly revise the initial query graph based on what s/he finds from the current matching results. A major bottleneck in such an interactive matching scenario is the efficiency, as simply re-running the matching algorithm on the revised query graph is computationally prohibitive. In this paper, we propose a family of effective and efficient algorithms (FIRST) to support interactive attributed subgraph matching. There are two key ideas behind the proposed methods. The first is to recast the attributed subgraph matching problem as a cross-network node similarity problem, whose major computation lies in solving a Sylvester equation for the query graph and the underlying data graph. The second key idea is to explore the smoothness between the initial and revised queries, which allows us to solve the new/updated Sylvester equation incrementally, without re-solving it from scratch. Experimental results show that our method can achieve (1) up to 16 times speed-up when applying on networks with 6M+ nodes; (2) preserving more than 90% accuracy compared with existing methods; and (3) scales linearly with respect to the size of the query graph as well as the data graph.
关 键 词: 属性网络; 网络科学; 属性匹配
课程来源: 视频讲座网
数据采集: 2022-11-24:chenxin01
最后编审: 2022-11-24:chenxin01
阅读次数: 17