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arXiv 2101.09417cs.SIcs.LGphysics.soc-ph
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预测连续系杆强度的机器学习方法

A Machine Learning Approach to Predicting Continuous Tie Strengths

Rensselaer Polytechnic Institute(伦斯勒理工学院);University of California San Diego(加州大学圣地亚哥分校);University of California Los Angeles(加州大学洛杉矶分校)

James Flamino, Ross DeVito, Boleslaw K. Szymanski, Omar Lizardo

摘要:

人与人之间的关系不断发展,改变人际行为,定义社会群体。社交网络中的节点之间的关系可以用联系强度来表示,通常使用调查进行经验评估。虽然这对于获取关系的静态快照是有效的,但是这样的方法难以扩展到动态网络。在本文中,我们提出了一个系统,允许随着时间的推移不断逼近的关系。我们使用NetSense研究来评估这个系统,该研究提供了圣母大学四年来学生的全面通信记录。这些记录由学期自我网络调查补充,这些调查提供了每个参与者与他人的真实社会联系强度随时间推移的离散样本。我们开发了一对功能强大的机器学习模型(辅以从过去的作品中提取的一套基线),从这些调查中学习,将通信记录解释为信号。这些信号代表了动态的联系强度,准确地记录了我们社交网络中个体之间关系的演变。随着这些不断变化的领带值,我们能够使几个经验得出的意见,我们比较过去的作品。

英文摘要:

Relationships between people constantly evolve, altering interpersonal behavior and defining social groups. Relationships between nodes in social networks can be represented by a tie strength, often empirically assessed using surveys. While this is effective for taking static snapshots of relationships, such methods are difficult to scale to dynamic networks. In this paper, we propose a system that allows for the continuous approximation of relationships as they evolve over time. We evaluate this system using the NetSense study, which provides comprehensive communication records of students at the University of Notre Dame over the course of four years. These records are complemented by semesterly ego network surveys, which provide discrete samples over time of each participant's true social tie strength with others. We develop a pair of powerful machine learning models (complemented by a suite of baselines extracted from past works) that learn from these surveys to interpret the communications records as signals. These signals represent dynamic tie strengths, accurately recording the evolution of relationships between the individuals in our social networks. With these evolving tie values, we are able to make several empirically derived observations which we compare to past works.

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。

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