Building a Cross-document Event-Event Relation Corpus
Yu Hong, Tongtao Zhang, Tim O’Gorman, Sharone A Horowit-Hendler, Heng Ji, Martha Stone Palmer · 2016
We propose a new task of extracting eventevent relations across documents.We present our efforts at designing an annotation schema and building a corpus for this task.Our schema includes five main types of relations: Inheritance, Expansion, Contingency, Comparison and Temporality, along with 21 subtypes.We also lay out the main challenges based on detailed inter-annotator disagreement and error analysis.We hope these resources can serve as a benchmark to encourage research on this new problem.