非参数异方差模型中条件回归函数的EM算法——基于农村食品消费与纯收入的实证研究
비삼수이방차모형중조건회귀함수적EM산법——기우농촌식품소비여순수입적실증연구
The EM Algorithm of Conditional Regression Function for Non-parametric Heteroscedastic Models: Based on Real Data Studies of Chinese Rural Residents' Food Consumption and Net Income
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