What is coreference, and what should coreference annotation be?
Kees van Deemter, Rodger Kibble · 1999
In this paper, it is argued that 'coreference annotation', as currently performed in the MUC community, goes well beyond annotation of the relation of coreference as it is commonly understood. As a result, it is not always clear what semantic relation these annotations are actually encoding. The paper discusses a number of interrelated problems with coreference annotation and concludes that rethinking of the coreference task is needed before the task can be expanded (e.g., to cover part/whole relations) as has recently been advocated. As a step towards solution of the problems with coreference annotation, one possible simplification of the annotation task is suggested. This strategy can be summed up by the phrase "Coreference annotation should annotate coreference relations, and coreference relations only".