This page describes WikiCoref, an English corpus annotated for anaphoric relations, where all documents are from the English version of Wikipedia. This work was created by Abbas Ghaddar and Philippe Langlais.

You can download the resource here.

Our annotation scheme follows OntoNotes scheme with a few disparities. We annotated each markable with coreference type, mention type and the equivalent Freebase topic. Since most similar annotation efforts concentrate on very specific types of written text, mainly newswire, there is a lack of resources for otherwise over-used Wikipedia texts.  The corpus described here addresses this issue. This freely available resource was initially devised for improving coreference resolution algorithms dedicated to Wikipedia texts. Our corpus has no restriction on the topics of the documents being annotated, and documents of various sizes have been considered for annotation.

Should you find this resource useful for your research, we would appreciate you cite this paper.

For more information, contact Philippe Langlais.