... A multi-staged approach to identifying complex events in textual dataConrad Chang, Lisa Ferro, John Gibson, Janet Hitzeman, Suzi Lubar, Justin Palmer,Sean Munson, Marc Vilain, and Benjamin ... understood as relations(job title) or events (acquisitions).3.3 Statistical trainingBecause we had no existing methods to addressfinancial events or relations, we took this oppor-tunity to ... discovery of complex events in text. By complex events, we mean events that might be structured out of multipleoccurrences of other events, or that might occurover a span of time. In financial...