摘要
进行参数估计简单假设观察数据服从特点分布,由于条件变化,实际计算过程中往往出现不同状况下获得的数据服从不同分布的情况,从而存在假设与实际情况差异。本文介绍了信息扩散原理及其计算过程,信息扩散过程可以将一个孤立的观测值变成一个模糊集。利用上述特性,结合城市火灾统计数据给出了城市火灾风险的评估过程,确定了某市发生火灾后的损失率及其超越概率, 为城市消防规划提供了技术参考。
It is supposed that the observing data estimation. But in the practical surveying process, obey a certain distribution in most methods of parameter due to the different conditions, the observing data obtained under different observation conditions may obey different distributions. There is in existence that the hypothesis is not conform to reality. Information spread and it＇s calculating process are introduced in this paper. Based on this method, an isolated observing value can be transferred into a fuzzy aggregation. Then the data around actual point can acquire information of different degree. Using this characteristic, assessment process of city fire is brought forward integrated with city fire statistics data.
出处
《中国安全生产科学技术》
CAS
2005年第3期15-18,共4页
Journal of Safety Science and Technology
基金
国家自然科学基金项目(编号:70473018)资助
关键词
信息扩散
模糊集
城市火灾
评估
information spread
fuzzy aggregation
city fire
assessment
