In this paper, with the methods of econometrics, we describe mathematical model and distribution function of family income.
本文应用计量经济学的方法，建立家庭收入的数学模型和家庭收入的分布函数。
2
This paper advances a new method of area identification geometric model pixel identifying method according to the pixel distinguishing function of computer upon the monitor.
本文根据计算机对显示器的象素识别功能，提出一种新的区域识别方法——几何模型象素识别法。
3
This paper introduces data mining concept, function and operation flow, and put forward using data mining technique to build individuation service model in physical education distance education.