通过数据网格模型的透镜对呼叫详细记录的国家尺度探索性分析
Country-scale Exploratory Analysis of Call Detail Records through the Lens of Data Grid Models
摘要：
呼叫详细记录（CDR）是电信公司记录的数据，包括与通过网络进行的呼叫的几个方面相关的基本信息：呼叫的来源，目的地，日期和时间。CDR数据分析近年来受到广泛关注，因为它可能揭示有关人类行为的有价值的信息。它在许多应用领域显示出很高的附加值，例如，社区分析或网络规划。在本文中，我们提出了一个通用的方法来总结CDR数据中包含的信息。该方法是基于描述呼叫的变量的联合分布的无参数估计。我们还提出了几个有根据的标准，允许一个浏览的摘要在不同的粒度和探索的摘要通过有见地的可视化。该方法处理网络图数据、时间序列数据以及源自原始CDR数据的用户移动性数据。我们展示了我们的方法的相关性，从象牙海岸的真实世界的CDR数据的各种案例研究。
英文摘要：
Call Detail Records (CDRs) are data recorded by telecommunications companies, consisting of basic informations related to several dimensions of the calls made through the network: the source, destination, date and time of calls. CDRs data analysis has received much attention in the recent years since it might reveal valuable information about human behavior. It has shown high added value in many application domains like e.g., communities analysis or network planning. In this paper, we suggest a generic methodology for summarizing information contained in CDRs data. The method is based on a parameter-free estimation of the joint distribution of the variables that describe the calls. We also suggest several well-founded criteria that allows one to browse the summary at various granularities and to explore the summary by means of insightful visualizations. The method handles network graph data, temporal sequence data as well as user mobility data stemming from original CDRs data. We show the relevance of our methodology for various case studies on real-world CDRs data from Ivory Coast.
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