ISSN 1000-1239 CN 11-1777/TP

计算机研究与发展 ›› 2016, Vol. 53 ›› Issue (11): 2645-2653.doi: 10.7544/issn1000-1239.2016.20150388

• 信息处理 • 上一篇    下一篇

离线瞬态社会网络中的多用户位置邻近预测

廖国琼1,2,王汀利1,邓琨1,2,万常选1,2   

  1. 1(江西财经大学信息管理学院 南昌 330013); 2(江西省高校数据与知识工程重点实验室(江西财经大学) 南昌 330013) (liaoguoqiong@163.com)
  • 出版日期: 2016-11-01
  • 基金资助: 
    国家自然科学基金项目(61262009);江西省自然科学基金项目(20151122040083);江西省优势科技创新团队建设计划项目(20113BCB24008) This work was supported by the National Natural Science Foundation of China (61262009), the Natural Science Foundation of Jiangxi Province (20151122040083), and the Jiangxi Foundation of Superiority Science and Technology Innovation Team Building Program (20113BCB24008).

Multi-User Location Proximity Prediction in Offline Ephemeral Social Networks

Liao Guoqiong1,2, Wang Tingli1, Deng Kun1,2, Wan Changxuan1,2   

  1. 1(School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013); 2(Jiangxi Province Key Laboratory of Data and Knowledge Engineering (Jiangxi University of Finance and Economics), Nanchang 330013)
  • Online: 2016-11-01

摘要: 离线瞬态社会网络(offline ephemeral social network, OffESN)是一种在特定时间通过参加特定事件临时组建的新型社会网络.随着移动智能终端的普及和短距离通信技术(如蓝牙、RFID技术等)的发展,该类型网络得到工业界和学术界越来越多的关注.位置邻近(location proximity)关系是指用户在离线网络中的相遇关系.针对位置邻近关系的动态变化性及持续时间短等特征,主要研究离线瞬态社会网络中多用户邻近关系预测问题.首先,给出离线瞬态社会网络中的相关概念及问题定义;然后,设计多用户邻近关系预测总体框架,包括网络片段收集、叠加网络构建、网络过滤及极大紧密子图发现等步骤.由于多邻近关系的数量及每个邻近关系中用户的数量不能事先确定,基于分裂思想提出了一种极大紧密子图挖掘策略,以预测多用户位置邻近关系.该挖掘算法是以加权边介数为网络分裂依据,以聚集密度为分裂结束条件.在2个真实数据集上完成了实验,验证了所提出预测策略的可行性及效率.

关键词: 社会网络, 瞬态社会网络, 位置邻近, 极大紧密子图, 链接预测

Abstract: Offline ephemeral social network (OffESN) is defined as a new kind of offline social networks created at a specific location for a specific purpose temporally, and lasting for a short period of time. With the popularity of mobile intelligent terminals and the development of short distance communication technologies such as Bluetooth and RFID, the OffESN is receiving more and more attentions from industry and academic communities. Location proximity relations are encounter relations of the users in the OffESN. Aiming to the characteristics such as dynamic change and short duration time, this paper intends to study the problem of multi-user location proximity in the OffESN. First of all, the paper puts forward relevant concepts in the OffESN and defines the problem to be solved. Then, it designs the overall framework of multi-user location proximity prediction, including network segments collection, overlay networks construction, network filter and maximal close subgraphs discovery. Based on the framework and the splitting idea, the paper suggests a maximal close subgraph discovery algorithm for predicting multi-user location proximity. The algorithm uses weighted edge betweenness (WEB) as the basis of splitting, and uses the aggregate density as the termination condition of spitting, which can effectively solve the problem that both numbers of location proximity relations and the users in each location proximity are uncertain. Finally, the experiments on two real datasets verify the feasibility and efficiency of the suggested prediction strategy.

Key words: social networks, ephemeral social networks, location proximity, maximal close subgraphs, link prediction

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