复杂工程风险管理的信息密度演化计算方法

Risk computation for complex engineering based on information density evolutionary

为提高复杂工程系统的风险评估和计算效率,对工程系统中复杂性和信息密度演化进行研究.利用信息熵方法对复杂工程系统中风险分析效率、效果与工程信息密度演化相关性进行研究.通过提出信息密度演化的信息栅格度量工具和计算方法,指出信息价值的独立性和不恒定,依赖于次密度维度上的信息演化,并且信息价值量与演化速度具有正相关性.结果表明,在信息密度演化的价值累积的初期,主要是信息价值生成过程的贡献,随着演化进程延伸,信息价值的扩散过程的贡献逐渐增大.

In the context of engineering complexity, this research focuses on improving the efficiency of risk evaluation and computation. The methodology is to use the information entropy to measure the risk degree of complex engineering system, and evaluate its relativity with information density evolution. Through developing the information grating measurement apparatus of information density evolution, it reveals the independency and variance of information value with a positive correlation with evolution speed in sub-density dimensions. The results reveal, the information value depends on the process of value generating in the initial evolution stage, but after that stage, information value diffusion contributes much more up to a dominant role.