维基百科贡献者中的人类动力学模式  

Empirical analysis Wikipedia contributors of human dynamics

作　　者：谢伟聪[1] 杨建梅[1] 

机构地区：[1]华南理工大学工商管理学院,广东广州510640

出　　处：《科学学研究》2010年第10期1454-1458,共5页Studies in Science of Science

摘　　要：一直以来,学者们认为人类在社会及经济活动中的行为发生时间,可以简单地用泊松分布来描述。泊松分布在电话交换机呼叫的计数问题、银行柜台客户到达数目等方面有非常广泛的应用。但近年来,Albert Barabási等人通过对现实中数据进行大量的实证研究发现:人类行为发生时间并不符合均匀的泊松分布,而是服从有胖尾的幂律分布,也就是说,有少量的行为发生的时间间隔很长。Alexei Vázquez和Albert Barabási等通过建立优先任务排队论,提出了两个普适类的幂指数标度。在此基础上,用幂律理论对维基百科上一万多个用户的登录数据,进行统计分析后,发现所得到的幂指数除了符合两个普适类外,还存在着第三个幂指数标度。For a long time,scholars believed that the social and economic activities of human behavior in the time of occurrence,we can simply use the Poisson distribution to describe.Poisson distributed in the telephone exchange calls counting problems,bank counters in the number of clients to reach a very wide range of applications.But in recent years,Albert Barabási and others by the real data,a large number of empirical studies found that： time of occurrence of human behavior does not comply with uniform Poisson distribution,but rather to submit to a heavy-tailed power-law distribution,that is,a small amount of behavior occurred at a time interval is very long.Alexei Vázquez,and Albert Barabási such as through the establishment of priority queuing theory,put forward two universality class of the exponential scale.On this basis,using power-law theory in Wikipedia Over ten thousand user＇s login data,conduct statistical analysis found that the resulting power index in addition to satisfying the two universality class,but also the existence of a third exponential scale.

关 键 词：人类动力学 维基百科 幂律分布 

分 类 号：F224.7[经济管理—国民经济]