城市应急联动系统架构与统一模型研究

根据我国对城市应急联动系统(UERS)建设的要求，遵循软件工程领域内成熟的模型语言规范，设计一个基于统一建模语言的UERS模型，包括决策指挥中心、应急联动中心、各联动单位的调度中心、联动单位的分支机构、处置力量部门和处置力量编组。该模型可以协助系统开发人员规范系统的开发与软件重用，优化系统结构，加快UERS的开发进度。

Study on Architecture and Unified Model of Urban Emergency Response System

In order to meet the demands for large scale databases clustering, this paper proposes a parallel clustering algorithm based on density for computer colony. This algorithm goes on data partition according to database distribution feature, processes data block parallel clustering on every node, merges clustering result on main node. Experimental result shows that computing speed of this algorithm is linear increment with number of node increasing, and it has better extensibility.