A Self-Limiting Hawkes Process

SIAM Student Seminar
Monday, November 16, 2020 - 12:30pm for 1 hour (actually 50 minutes)
ONLINE at https://bluejeans.com/703668715
John Olinde – GT Math – jolinde@gatech.edu
Jiaqi Yang

Many real life processes that we would like to model have a self-exciting property, i.e. the occurrence of one event causes a temporary spike in the probability of other events occurring nearby in space and time.  Examples of processes that have this property are earthquakes, crime in a neighborhood, or emails within a company.  In 1971, Alan Hawkes first used what is now known as the Hawkes process to model such processes.  Since then much work has been done on estimating the parameters of a Hawkes process given a data set and creating variants of the process for different applications.


In this talk, I will be proposing a new variant of a Hawkes process that takes into account the effect of police activity on the underlying crime rate and an algorithm for estimating its parameters given a crime data set.