Role of activity in human dynamics
Role of activity in human dynamics
复制标题
活动在人体动力学中的作用
DOI：
10.1209/0295-5075/82/28002
复制
发表时间：
2008-04-01
期刊：
影响因子：
1.8
通讯作者：
Holme, P.
中科院分区：
文献类型：
--
作者：
Zhou, T.;Kiet, H. A. T.;Holme, P.
人类社会是一个非常复杂的系统，但仍然有一些重要的特征。其中一类是时间统计中幂律分布量的存在。在这封信中，我们专注于电影分级中幂律的起源。我们提出了一个系统的经验探索的时间之间的两个连续的评级的电影（interevent时间）。在总体水平上，我们发现个体活动与时间间隔分布的幂律指数之间存在单调关系。在个人层面上，我们观察到每个用户的重尾分布，以及活动与分布宽度之间的负相关性。我们支持这些发现的一个类似的数据集从移动的手机短信通信。我们的研究结果表明，个人的活动对社会层面的人类行为模式的重要作用。我们认为这是兴趣驱动的人类动力学的一个共同特征，对应于（但不同于）任务驱动动力学的普遍性类。版权所有（c）EPLA，2008.
The human society is a very complex system; still, there are several non-trivial, features. One type of them is the presence of power-law-distributed quantities in temporal statistics. In this letter, we focus on the origin of power laws in rating of movies. We present a systematic empirical exploration of the time between two consecutive ratings of movies ( the interevent time). At an aggregate level, we find a monotonous relation between the activity of individuals and the power law exponent of the interevent time distribution. At an individual level, we observe a heavy-tailed distribution for each user, as well as a negative correlation between the activity and the width of the distribution. We support these findings by a similar data set from mobile phone text-message communication. Our results demonstrate a significant role of the activity of individuals on the society-level patterns of human behavior. We believe this is a common character in the interest-driven human dynamics, corresponding to (but different from) the universality classes of task-driven dynamics. Copyright (c) EPLA, 2008.