基于增量聚类的Web上农产品质量安全突发事件追踪模型  

Emergency Tracking Model of Agricultural Product Quality and Safety on Web Based on Incremental Clustering

作　　者：潘守慧[1,2,3] 王开义 王志彬[1,2] 韩焱云 赵向宇[1,2] Pan Shouhui;Wang Kaiyi;Wang Zhibin;Han Yanyun;Zhao Xiangyu(Beijing Research Center for Information Technology in Agriculture,Beijing 100097;National Engineering Research Center for Information Technology in Agriculture,Beijing 100097;Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097)

机构地区：[1]北京农业信息技术研究中心,北京100097 [2]国家农业信息化工程技术研究中心,北京100097 [3]北京市农林科学院,北京100097

出　　处：《情报杂志》2017年第11期55-58,140,共5页Journal of Intelligence

基　　金：北京市自然科学基金面上项目"农产品质量安全突发事件在线检测和演化规律研究"(编号:9152009);国家自然科学基金青年项目"基于Web的农产品安全信息传播与干预模型研究"(编号:71301011);国家自然科学基金青年项目"基于集成学习的蔬菜病害识别与病级划分方法研究"(编号:61403035);北京市优秀人才培养资助青年骨干人才个人项目"基于决策森林的育种评价技术研究"(编号:2016000020060G125);北京市农林科学院青年基金项目"基于序相关的育种辅助决策技术研究与示范"(编号:QNJJ201623)研究成果之一

摘　　要：[目的/意义]互联网已成为农产品质量安全突发事件信息传播的重要平台,呈现出信息规模庞大、分散、无序等特点,需要将这些孤立、零散分布的海量信息汇集起来,以便从整体上把握突发事件的发展态势。[方法/过程]提出了一种基于增量聚类的农产品质量安全突发事件自动跟踪模型,给出了基于Single-Pass的增量聚类算法框架,并通过引入时间距离来改进聚类间的相似度计算方法。[结果/结论]实验结果表明,改进后系统的漏报率和误报率都有明显降低。本模型可有效地对农产品质量安全突发事件进行动态关联追踪,有助于提高农产品质量安全突发事件应急管理水平。[ Purpose/Significance] The Internet has become an important platform for the dissemination of quality and safety emergencies of agricultural products, which has the characteristic of large scale, decentralization and disorder. To grasp the overall situation of emer-gencies , there is an urgent need to bring together this isolated, scattered and distributed mass information. [Method/Process] An automat-ic model for tracking agricultural product quality safety emergencies based on incremental clustering was proposed, and a framework of in-cremental clustering algorithm based on Single-Pass was presented, in which the similarity between clusters was improved by introducing time distance. [ Results Conclusion] The experimental results show that the misses and false alarms of the improved system are significantly reduced and our proposed model can track the crisis events of quality and safety of agricultural product. Thus, it is helpful to improve the emergency management level of the quality and safety of agricultural product.

关 键 词：农产品 质量安全 突发事件 事件追踪 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]