Hawkes Process
Hawkes processes are mathematical models used to analyze sequences of events where the occurrence of one event influences the probability of future events, capturing self-exciting and mutually-exciting dynamics. Current research focuses on improving model robustness to noisy data, enhancing the ability to handle complex interactions and nonlinearities (e.g., through neural network integration, such as Transformer Hawkes Processes and Mamba Hawkes Processes), and developing efficient inference techniques (e.g., using Bayesian methods, score matching, or Frank-Wolfe algorithms). These advancements are significantly impacting fields like finance, healthcare, and social network analysis by enabling more accurate modeling of event sequences and improved prediction capabilities.
Papers
Bellman Meets Hawkes: Model-Based Reinforcement Learning via Temporal Point Processes
Chao Qu, Xiaoyu Tan, Siqiao Xue, Xiaoming Shi, James Zhang, Hongyuan Mei
Le Processus Powered Dirichlet-Hawkes comme A Priori Flexible pour Clustering Temporel de Textes
Gaël Poux-Médard, Julien Velcin, Sabine Loudcher