数据仓库技术在智能交通管理决策系统中的实现

基于公交管理系统数据,结合数据仓库(DW)、数据挖掘(DM)、联机分析处理(OLAP)和数据可视化技术及当前公交系统中存在的问题,探讨了智能交通管理决策系统的实现,实施数据挖掘,分析数据结果,为公交系统日常管理与决策提供实时与科学的信息.     

汽车安全气囊控制模块全生命周期的可追溯方案

针对如何提高安全气囊控制模块可靠性,介绍了气囊系统的发展,组成和基本原理,并重点分析了精确的控制其生产流程的意义及手段;探讨实现全生命周期的可追溯性的方案,包括记录的产生,内容和构成纪录的数据的结构与定义。     

The factors analysis and algorithm implementation of single-pattern matching

By studying the algorithms of single pattern matching, five factors that have effect on time complexity of the algorithm are analyzed. The five factors are: sorting the characters of pattern string in an increasing order of using frequency, utilizing already-matched pattern suffix information, utilizing already-matched pattern prefix information, utilizing the position factor which is absorbed from quick search algorithm, and utilizing the continue-skip idea which is originally proposed by this paper. Combining all the five factors, a new single pattern matching algorithm is implemented. It’s proven by the experiment that the efficiency of new algorithm is the best of all algorithms. Foundation item: the National Natural Science Foundation of China (Nos. 60502032 and 60672068)