EventGraph at CASE 2021 Task 1: A General Graph-based Approach to Protest Event Extraction. (arXiv:2210.09770v1 [cs.CL])

This paper presents our submission to the 2022 edition of the CASE 2021
shared task 1, subtask 4. The EventGraph system adapts an end-to-end,
graph-based semantic parser to the task of Protest Event Extraction and more
specifically subtask 4 on event trigger and argument extraction. We experiment
with various graphs, encoding the events as either "labeled-edge" or
"node-centric" graphs. We show that the "node-centric" approach yields best
results overall, performing well across the three languages of the task, namely
English, …

arxiv case event extraction general graph graph-based protest