文献老化B-K方程的改进式  

The Improved B-K Equation for Literature Obsolescence

作　　者：时秀娟[1] 李正吾[2] SHI Xiu-juan LI Zheng-wu(Department of Mathematics, Yang-en University, Quanzhou 362014, China Retired Veteran Cadres Department, Wuyi University, Jiangmen 529020, China)

机构地区：[1]仰恩大学数学系,福建泉州362014 [2]五邑大学离退老干处,广东江门529020

出　　处：《五邑大学学报（自然科学版）》2017年第1期14-19,共6页Journal of Wuyi University(Natural Science Edition)

摘　　要：针对文献老化B-K方程在实际应用中存在系数a,b的取值会超出[0,1],范围的问题,将B-K方程中的e^x或e^(2x)修改为enx,用改进后的方程进行数据模拟.结果表明,对B-K方程的改进,不仅有合理的意义,也提高了模拟的精度,特别是可以解决B-K方程中有权重意义的系数a,b的取值范围问题.In view of the fact that in the practical application of the literature aging B-K equation, the value of coefficients a and b will exceed the scope of [0,1], the e^x or e^2x in B-K equation is modified as e^nx,and the improved equation is used to conduct data simulation.The results show that the improvement on B-K equation not only has reasonable significance, but also improves the accuracy of simulation, especially in solving the value range of coefficients a and b with weight significance in the B-K equation.

关 键 词：文献老化 B-K方程 B-K方程的改进式 

分 类 号：G350[文化科学—情报学]