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纵向网络的连续时间回归模型

Continuous-Time Regression Models for Longitudinal Networks
课程网址: http://videolectures.net/nips2011_asuncion_networks/  
主讲教师: Arthur Asuncion
开课单位: 加利福尼亚大学
开课时间: 2012-01-25
课程语种: 英语
中文简介:
连续时间纵向网络数据的统计模型的发展对机器学习和社会科学越来越感兴趣。利用生存和事件历史分析的思想,我们为网络事件数据引入了连续时间回归建模框架,该框架可以包含时间相关的网络统计和时变回归系数。我们还开发了一种有效的推理方案,允许我们的方法扩展到大型网络。在综合和现实世界数据上,实证结果表明,所提出的推理方法可以准确地估计回归模型的系数,这对于解释网络的演化是有用的;此外,与标准基线方法相比,学习模型具有系统更好的预测性能。
课程简介: The development of statistical models for continuous-time longitudinal network data is of increasing interest in machine learning and social science. Leveraging ideas from survival and event history analysis, we introduce a continuous-time regression modeling framework for network event data that can incorporate both time-dependent network statistics and time-varying regression coefficients. We also develop an efficient inference scheme that allows our approach to scale to large networks. On synthetic and real-world data, empirical results demonstrate that the proposed inference approach can accurately estimate the coefficients of the regression model, which is useful for interpreting the evolution of the network; furthermore, the learned model has systematically better predictive performance compared to standard baseline methods.
关 键 词: 纵向网络数据; 机器学习; 连续时间回归建模
课程来源: 视频讲座网
最后编审: 2019-07-26:cwx
阅读次数: 53