大规模接警日志语义时空模式交互探索  

Interactive Exploration of Semantic-Spatial-Temporal Patterns of Large-Scale Alarm Police Logs

作　　者：贺一桐 李杰[1] 陶文源[1] 高星[1] 张康 He Yitong;Li Jie;Tao Wenyuan;Gao Xing;Zhang Kang(School of Computer Software,Department of Intelligence and Computing,Tianjin University,Tianjin 300350;Department of Computer Science,Texas University,Dallas 75080)

机构地区：[1]天津大学智能与计算学部软件学院,天津300350 [2]Department of Computer Science,Texas University Dallas 75080

出　　处：《计算机辅助设计与图形学学报》2021年第4期518-531,共14页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家重点研发计划(2018YFC0831700);国家自然科学基金(61972278,61602340)。

摘　　要：接警日志包含时间、空间和案件描述信息,属于非结构时空数据.与时空社交媒体相比,接警日志的数据项之间存在较少的联系,数据项之间不能形成复杂网络关系,在挖掘其数据模式时难以提供有价值的线索,因此,其分析更加依赖于其中的语义挖掘和语义时空模式探索.针对这一问题,提出了一个可视分析框架支持对大规模非结构接警日志时空模式的交互探索.首先,提出了一种基于主题模型集成的方法,实现从异构文本中抽取主题;其次,该框架包含一个数据立方体,实现快速响应用户的查询请求;第三,设计并实现了一个可视化交互系统,支持对数据立方体的可视化交互探索.最后,使用国内某城市真实接警日志进行实验,找到的丰富的模式和主题预测准确性证明了方法的有效性.The alarm log contains time,space,and case description information,which is unstructured spatiotemporal data.Compared with spatio-temporal social media,there are fewer connections between the data items in the alarm log,and complex network relationships cannot be formed between the data items.It is difficult to provide valuable clues in data patterns.Therefore,its analysis depends more on the semantic mining and the exploration of semantic spatiotemporal patterns.In response to this problem,a visual analysis framework is proposed to support large-scale unstructured alarm log spatiotemporal patterns interactive exploration.First,a method based on topic model integration to extract topics from heterogeneous texts is proposed;Second,the framework includes a data cube to quickly respond to user queries;Third,a visual interactive system is designed and implemented to support the visual interactive exploration of the data cube.Finally,we use a real alarm log of a city in China to evaluate the approach.The rich detected patterns and high topic prediction accuracy prove the effectiveness of the approach.

关 键 词：接警日志 语义时空模式 可视分析 主题模型集成 数据立方体 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]