人类流动的非马尔可夫特征:线上与线下
Non-Markovian Character in Human Mobility: Online and Offline
摘要:
人类流动动力学表征了人类在日常活动中所遵循的轨迹,是从传染病传播到交通预测和信息推荐等过程的基础。在本文中,我们调查了大量的人类活动的数据集,包括在线浏览网站的行为和离线的访问塔基于移动终端。从在线和离线的情况下观察到的非马尔可夫字符建议在个人和集体水平的停留时间分布的标度律,分别。此外,我们认为,较低的熵和较高的可预测性人类流动的在线和离线的情况下,可能起源于这种非马尔可夫性质。然而,个体熵和可预测性的分布显示出不同程度的非马尔可夫特征,从在线到离线的情况。为了解释人类流动的非马尔可夫特征,我们引入了一个原型模型\emph{preferential return, inertial effect, and exploration},它包含三个基本成分,再现了在线和离线人类流动的动态过程。与标准的和有偏的马尔可夫过程假设的随机游走模型相比,所提出的模型能够获得更接近这些经验观察的特征。
英文摘要:
The dynamics of human mobility characterizes the trajectories humans follow during their daily activities and is the foundation of processes from epidemic spreading to traffic prediction and information recommendation. In this paper, we investigate a massive data set of human activity including both online behavior of browsing websites and offline one of visiting towers based mobile terminations. The non-Markovian character observed from both online and offline cases is suggested by the scaling law in the distribution of dwelling time at individual and collective levels, respectively. Furthermore, we argue that the lower entropy and higher predictability in human mobility for both online and offline cases may origin from this non-Markovian character. However, the distributions of individual entropy and predictability show the different degrees of non-Markovian character from online to offline cases. To accounting for non-Markovian character in human mobility, we introduce a protype model with three basic ingredients, \emph{preferential return, inertial effect, and exploration} to reproduce the dynamic process of online and offline human mobility. In comparison with standard and biased random walk models with assumption of Markov process, the proposed model is able to obtain characters much closer to these empirical observations.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。