| 1. | The two - stage modeling method for software project risk ’ s static bayesian networks is studied . the object - oriented modeling method for risk bayesian network is presented , structure refinement method based on network measurement is discussed , and probability parameters refinement method based on maximum likelihood estimates is put forward 为提高风险模型的准确性,提出了基于网络度量的风险贝叶斯网络结构改进算法,给出了基于极大似然估计的风险贝叶斯网络概率参数更新算法。 |