Zero-inflated Poisson model with group data

摘要：

The Zero-inflated Poisson model has been widely used in many fields for count data with excessive zeroes. In fact, group data are often collected for many count data, such as cigarette consumption. In order to solve the problem, Zero-inflated Poisson model with group data is investigated in this paper. Parameter estimation is given by the maximum likelihood estimate, model selection is discussed by the Chi-square test, and one real example is given for application in the end.

关键词： Zero-inflated Poisson model group data count data maximum likelihood estimate Chi-square test

作者: Jun Yang Xin Zhang

作者单位: School of Reliability and Systems Engineering, Beihang University, Beijing 100191, China

会议类型: 国际会议

会议名称: 2012 International Conference on Advanced Materials Design and Machanics(2012先进材料设计与机械学国际会议 ICAMDM 2012)

会议地点: 厦门

会议语种:英文

页码: 627-631

在线出版日期: 2012-06-05（万方平台首次上网日期，不代表论文的发表时间）