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Bibliographic Details
Main Authors: Shen, Chifeng, Fu, Yuejiao, Shi, Xiaoping, Chen, Michael
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2511.19375
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Table of Contents:
  • Temporal point processes (TPPs) model the timing of discrete events along a timeline and are widely used in fields such as neuroscience and fi- nance. Statistical depth functions are powerful tools for analyzing centrality and ranking in multivariate and functional data, yet existing depth notions for TPPs remain limited. In this paper, we propose a novel product depth specifically designed for TPPs observed only up to the first k events. Our depth function comprises two key components: a normalized marginal depth, which captures the temporal distribution of the final event, and a conditional depth, which characterizes the joint distribution of the preceding events. We establish its key theoretical properties and demonstrate its practical utility through simulation studies and real data applications.