Leveraging Open Information Extraction for More Robust Domain Transfer of Event Trigger Detection

Event detection is a crucial information extraction task in many domains, such as Wikipedia or news. The task typically relies on trigger detection (TD) -- identifying token spans in the text that evoke specific events. While the notion of triggers should ideally be universal across domains, domain transfer for TD from high- to low-resource domains results in significant performance drops. We address the problem of negative transfer in TD by coupling triggers between domains using subject-object relations obtained from a …

cs.cl cs.lg detection domain domains event events extraction information information extraction notion robust text token transfer wikipedia