What is the Point of Change? Change Point Detection in Relational Event Models

IF 2.9 2区社会学 Q1 ANTHROPOLOGY

Social Networks Pub Date : 2023-07-01 DOI:10.1016/j.socnet.2023.03.004

Mahdi Shafiee Kamalabad , Roger Leenders , Joris Mulder

引用次数: 0

Abstract

This paper presents an extension to the relational event model with change points (REM-CP) to study abrupt changes to social interaction behavior in temporal networks. A change point detection algorithm is proposed for exploring when and which network effects abruptly change, and a confirmatory approach to test the presence of a change point at a given moment. The effectiveness of the methodology was assessed with numerical simulations and NASA’s Apollo 13 mission data. The latter revealed dynamic communication behavior and identified time zones where most change points occurred, including around the time of the famous quote “Houston, we’ve had a problem.”

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改变的意义是什么？关系事件模型中的变点检测

本文对具有变化点的关系事件模型（REM-CP）进行了扩展，以研究时间网络中社交行为的突变。提出了一种变化点检测算法来探索网络效应何时以及哪些突然变化，并提出了一个验证方法来测试在给定时刻是否存在变化点。该方法的有效性通过数值模拟和美国国家航空航天局的阿波罗13号任务数据进行了评估。后者揭示了动态沟通行为，并确定了大多数变化点发生的时区，包括著名的名言“休斯顿，我们遇到了问题”

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Social Networks Multiple-

CiteScore

5.90

自引率

12.90%

发文量

118

期刊介绍： Social Networks is an interdisciplinary and international quarterly. It provides a common forum for representatives of anthropology, sociology, history, social psychology, political science, human geography, biology, economics, communications science and other disciplines who share an interest in the study of the empirical structure of social relations and associations that may be expressed in network form. It publishes both theoretical and substantive papers. Critical reviews of major theoretical or methodological approaches using the notion of networks in the analysis of social behaviour are also included, as are reviews of recent books dealing with social networks and social structure.