d =

[

]

with x=b/a, y=p/q, z=s/r

where

a denotes the number of professors concentrated on academic issues;

b denotes the number of professors concentrated on business  issues;

p denotes the number of professors producing papers as purpose;

q denotes the number of professors solving questions as purpose;

r denotes the average time that  professors spent on research activities;

s denotes the average time that  professors spent on social activities.

　Substituting these magnitudes into the above formula, you will know how many years is your university behind the top universities in the world. 

(by YQL 2005.10)

References
中国大学与世界一流大学的距离 
北京大学：向着世界一流大学迅跑
清华大学：2020建成世界一流大学 
南京大学：加快创建世界一流大学的进程 
东南大学：排出建世界一流大学时间表
人民大学：创建世界一流大学之十大亮 
浙江大学：建成世界一流大学 
天津大学、南开大学：规划世界一流大学蓝图 
四川大学：成为世界一流大学确立为新时期奋斗目标 
国防科大：着力创建世界一流大学 哈工大：银校联手创世界一流大学 中行6亿资金注入