论文标题
关于旅行目的地对单个人类流动性模式建模的重要性
On the importance of trip destination for modeling individual human mobility patterns
论文作者
论文摘要
在从公共卫生到运输和城市规划的广泛应用中，了解人类流动性模式并能够准确地重现它们。在近期文献中可以找到的单个流动性模型中，个人仍将投资于旅行的努力之间的关系，其目的重要性仍未考虑到。在这里，我们通过引入一个模型来解决这个问题，假设旅行的重要性与行进距离之间的关系。在大多数实际情况下，量化这种重要性是不可行的。我们通过专注于购物旅行（我们拥有经验数据）并将物品的价格作为代理来克服这一困难。我们的模型能够从经验上观察到的旅行距离中的长尾分布，并解释数据中旅行距离与项目值之间的缩放关系。
Getting insights on human mobility patterns and being able to reproduce them accurately is of the utmost importance in a wide range of applications from public health, to transport and urban planning. Still the relationship between the effort individuals will invest in a trip and its purpose importance is not taken into account in the individual mobility models that can be found in the recent literature. Here, we address this issue by introducing a model hypothesizing a relation between the importance of a trip and the distance traveled. In most practical cases, quantifying such importance is undoable. We overcome this difficulty by focusing on shopping trips (for which we have empirical data) and by taking the price of items as a proxy. Our model is able to reproduce the long-tailed distribution in travel distances empirically observed and to explain the scaling relationship between distance traveled and item value found in the data.
