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Statistics > Methodology

arXiv:2204.11760 (stat)
[Submitted on 25 Apr 2022]

Title:A new model for preferential attachment scheme with time-varying parameters

Authors:Bo Zhang, Hanyang Tian, Guangming Pan
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Abstract:We propose an extension of the preferential attachment scheme by allowing the connecting probability to depend on time t. We estimate the parameters involved in the model by minimizing the expected squared difference between the number of vertices of degree one and its conditional expectation. The asymptotic properties of the estimators are also investigated when the parameters are time-varying by establishing the central limit theorem (CLT) of the number of vertices of degree one. We propose a new statistic to test whether the parameters have change points. We also offer some methods to estimate the number of change points and detect the locations of change points. Simulations are conducted to illustrate the performances of the above results.
Subjects: Methodology (stat.ME)
Cite as: arXiv:2204.11760 [stat.ME]
  (or arXiv:2204.11760v1 [stat.ME] for this version)
  https://doi.org/10.48550/arXiv.2204.11760

Submission history

From: Hanyang Tian [view email]
[v1] Mon, 25 Apr 2022 16:22:49 UTC (100 KB)
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