摘要
以概率与数理统计理论和现代信息理论为基础,针对目前岩土工程随机反演中常用的极大似然法和贝叶斯法,从随机过程入手,应用最大熵原理推导了这两种方法的准则函数.它的理论意义在于,从数据信息的角度对极大似然反分析法和贝叶斯反分析法进行了重新认识,比过去仅从数据和算法本身研究反演问题多了一个参照系,使得对传统意义上反分析法中的不确定性研究有了一个新的模式.
Based on the modern information theory, two objective functions of the maximum likelihood method and Bayes' Method are deduced with random process and the Principle of Maximum Entropy. The theoretical significance of the deduction is that the maximum likelihood method and Bayes' Method are reconsidered according to the data information, and that one more reference is added to the back analysis which was performed only based on data and algorithms, thus, providing a new method for research of indeterminateness of back analysis.
出处
《河海大学学报(自然科学版)》
CAS
CSCD
北大核心
2002年第6期52-55,共4页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金资助项目(59809003)
教育部高等学校骨干教师资助项目
教育部博士点专项科研基金
关键词
反分析
随机
最大熵原理
极大似然法
贝叶斯法
岩土工程
back analysis
random
Principle of Maximum Entropy
maximum likelihood method
Bayes' Method
geotechnical engineering