政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/112546

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政大機構典藏 > 商學院 > 國際經營與貿易學系 > 期刊論文 > Item 140.119/112546

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題名:	Estimating Links of a Network from Time to Event Data
作者:	顏佑銘 Yen, Tso-Jung Lee, Zong-Rong Chen, Yi-Hau Yen, Yu-Min Hwang, Jing-Shiang
貢獻者:	國貿系
日期:	2017-02
上傳時間:	2017-09-06 16:35:56 (UTC+8)
摘要:	In this paper we develop a statistical method for identifying links of a network from time to event data. This method models the hazard function of a node conditional on event time of other nodes, parameterizing the conditional hazard function with the links of the network. It then estimates the hazard function by maximizing a pseudo partial likelihood function with parameters subject to a user-specified penalty function and additional constraints. To make such estimation robust, it adopts a pre-specified risk control on the number of false discovered links by using the Stability Selection method. Simulation study shows that under this hybrid procedure, the number of false discovered links is tightly controlled while the true links are well recovered. We apply our method to estimate a political cohesion network that drives donation behavior of 146 firms from the data collected during the 2008 Taiwanese legislative election. The results show that firms affiliated with elite organizations or firms of monopoly are more likely to diffuse donation behavior. In contrast, firms belonging to technology industry are more likely to act independently on donation.
關聯:	The Annals of Applied Statistics, Vol. 11, No. 3, 1429–1451
資料類型:	article
顯示於類別:	[國際經營與貿易學系 ] 期刊論文

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