| 基于云变换的突发事件属性概念树的构建 |
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| 引用本文： | 张艳琼,邓三鸿.基于云变换的突发事件属性概念树的构建[J].现代情报,2016,36(2):46. |
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| 作者姓名： | 张艳琼 邓三鸿 |
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| 作者单位： | 1. 南京特殊教育师范学院信息科学学院, 江苏南京 210038;2. 南京大学信息管理学院, 江苏南京 210023;3. 江苏省数据工程与知识服务重点实验室(南京大学), 江苏南京 210023 |
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| 基金项目： | 国家社会科学基金重大项目"面向突发事件应急决策的快速响应情报体系研究"(项目编号:13&ZD174);地震科技星火计划攻关项目"面向地震应急的空间智能决策方法"(项目编号:XH15019)。 |
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| 摘 要： | 针对突发事件属性具有模糊性、随机性等特点,将云变换理论引入到突发事件属性概念树构建研究中,在原有算法基础上,引入梯形云模型,提出一种基于多类型云的概念提取方法,不仅较好地解决了突发事件属性的模糊性、随机性等不确定性问题,而且在提高拟合数据分布曲线精度的同时减少云模型的个数。以全球恐怖主义研究数据库为例,正确有效地构建nkill属性概念树,为高质量地进行数据挖掘提供科学而有效的数据预处理方法。
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| 关 键 词： | 突发事件 概念树 云变换 梯形云 |
The Building of Emergency Concept Tree based on Cloud Transformation |
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| Authors: | Zhang Yanqiong Deng Sanhong |
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| Institution: | 1. School of Information Science, Nanjing Normal University of Special Education, Nanjing 210038, China;2. School of Information Management, Nanjing University, Nanjing 210023, China;3. Jiangsu Key Laboratory of Data Engineering and Knowledge Service(Nanjing University), Nanjing 210023, China |
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| Abstract: | According to the emergency characteristics,such as fuzziness,randomness,the cloud transformation was used to build concept tree of emergency attribute.Including Trapezium cloud,a new concept extracting method based on multiple types of clouds is proposed in this paper,which not only solved the fuzziness,randomness problem,but only improved the accuracy of fitting the data distribution curve while reducing the number of cloud model.A test was given on Global Terrorism Database(GTD),the result showed that the algorithm can build concept tree of nkill property. |
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| Keywords: | emergency concept tree cloud transformation trapezium cloud |
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