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通过研究两所大学图书馆数据库中的真实资料,从群体和个体两个层面分析一次借阅过程中图书的借阅时间和用户连续两次借阅或还回图书的时间间隔等统计特征。结果表明,群体行为与个体行为表现出不同的统计特征,除群体行为的借阅时间表现为指数分布外,其它统计量都服从指数范围为1至3的幂律分布。研究说明,人类行为在群体和个体层面上具有不同的多重标度特性。
By studying the real data in two university library databases, this paper analyzes the statistical characteristics of the borrowing time of a book in the process of borrowing and the interval of borrowing or returning books twice in a row from the group and individual levels. The results show that the group behavior and the individual behavior show different statistical characteristics. Except for group behavior, the borrowing time is exponential distribution, while other statistics are subject to power law distribution with index range of 1 to 3. Research shows that human behavior has different multiple scale characteristics at the group and individual levels.