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William Trouleau

4 accepted papers

2021

A Variational Inference Approach to Learning Multivariate Wold Processes

AISTATS 2021poster

Temporal point-processes are often used for mathematical modeling of sequences of discrete events with asynchronous timestamps. We focus on a class of temporal point-process models called multivariate Wold processes (MWP). These processes are well suited to model real-world communication dynamics. S…

2021

Cumulants of Hawkes Processes are Robust to Observation Noise

ICML 2021spotlight

Multivariate Hawkes processes (MHPs) are widely used in a variety of fields to model the occurrence of causally related discrete events in continuous time. Most state-of-the-art approaches address the problem of learning MHPs from perfect traces without noise. In practice, the process through which…

2019

Learning Hawkes Processes Under Synchronization Noise

ICML 2019oral

Multivariate Hawkes processes (MHP) are widely used in a variety of fields to model the occurrence of discrete events. Prior work on learning MHPs has only focused on inference in the presence of perfect traces without noise. We address the problem of learning the causal structure of MHPs when obser…

Cited by 28SourcePDFScholar
2019

Learning Hawkes Processes from a handful of events

NeurIPS 2019poster

Learning the causal-interaction network of multivariate Hawkes processes is a useful task in many applications. Maximum-likelihood estimation is the most common approach to solve the problem in the presence of long observation sequences. However, when only short sequences are available, the lack of…