no code implementations • 16 Nov 2023 • Negar Mokhberian, Myrl G. Marmarelis, Frederic R. Hopp, Valerio Basile, Fred Morstatter, Kristina Lerman
Previous studies have shed light on the pitfalls of label aggregation and have introduced a handful of practical approaches to tackle this issue.
no code implementations • 15 Jun 2023 • Myrl G. Marmarelis, Greg Ver Steeg, Aram Galstyan, Fred Morstatter
We present a simple approach to partial identification using existing causal sensitivity models and show empirically that Caus-Modens gives tighter outcome intervals, as measured by the necessary interval size to achieve sufficient coverage.
no code implementations • 24 Apr 2022 • Myrl G. Marmarelis, Elizabeth Haddad, Andrew Jesson, Neda Jahanshad, Aram Galstyan, Greg Ver Steeg
Sensitivity analyses provide principled ways to give bounds on causal estimates when confounding variables are hidden.
no code implementations • 5 May 2020 • Myrl G. Marmarelis, Greg Ver Steeg, Aram Galstyan
A multivariate Hawkes process enables self- and cross-excitations through a triggering matrix that behaves like an asymmetrical covariance structure, characterizing pairwise interactions between the event types.