We propose a dataset for event coreference resolution, which is based on random samples drawn from multiple sources, languages, and countries. Early scholarship on event information collection has not quantified the contribution of event coreference resolution. We prepared and analyzed a representative multilingual corpus and measured the performance and contribution of the state-of-the-art event coreference resolution approaches. We found that almost half of the event mentions in documents co-occur with other event mentions and this makes it inevitable to obtain erroneous or partial event information. We showed that event coreference resolution could help improving this situation. Our contribution sheds light on a challenge that has been overlooked or hard to study to date. Future event information collection studies can be designed based on the results we present in this report. The repository for this study is on https://github.com/emerging-welfare/ECR4-Contentious-Politics.

研究提供了一份跨来源、语言和国家的事件共参考数据集，并分析了多语言语料库的表现和贡献，发现近一半文档中的事件提及与其他事件提及共现，这不可避免地导致了错误或部分事件信息，事件核共参考可以帮助解决这一问题并减少错误。

涉及争议政治事件的事件关联消解