gSCorr:为基于位置的社交网络上的新签到建立地理社会关联模型

Huiji Gao, Jiliang Tang, Huan Liu
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引用次数: 231

摘要

近年来,基于位置的社交网络(LBSNs)吸引了越来越多的用户。在线LBSNs的地理和社会信息的可用性为从社会空间行为研究人类运动提供了前所未有的机会,使各种基于位置的服务成为可能。先前关于LBSNs的研究报告了使用社交网络信息进行位置预测的有限改进;由于用户可以在新的地点登记,传统的位置预测工作依赖于挖掘用户的历史轨迹,而不是为预测新登记的“冷启动”问题而设计的。在本文中,我们提出利用社会网络信息来解决“冷启动”位置预测问题,利用地理社会关联模型来捕获考虑社会网络和地理距离的LBSNs上的社会相关性。在现实世界的LBSN上的实验结果表明,我们的方法通过考虑各种相关强度和相关度量,正确地建模了用户新签到的社会相关性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
gSCorr: modeling geo-social correlations for new check-ins on location-based social networks
Location-based social networks (LBSNs) have attracted an increasing number of users in recent years. The availability of geographical and social information of online LBSNs provides an unprecedented opportunity to study the human movement from their socio-spatial behavior, enabling a variety of location-based services. Previous work on LBSNs reported limited improvements from using the social network information for location prediction; as users can check-in at new places, traditional work on location prediction that relies on mining a user's historical trajectories is not designed for this "cold start" problem of predicting new check-ins. In this paper, we propose to utilize the social network information for solving the "cold start" location prediction problem, with a geo-social correlation model to capture social correlations on LBSNs considering social networks and geographical distance. The experimental results on a real-world LBSN demonstrate that our approach properly models the social correlations of a user's new check-ins by considering various correlation strengths and correlation measures.
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