An overview of cross-document coreference resolution

Aiming effective information extraction from textual documents, an important task is the Cross-document Coreference Resolution (CCR) in which co-referring entity mentions are resolved across multiple documents. The task of CCR, consists of multiple processing stages in which each stage plays a critical role in the whole process. In this paper, an overview of the CCR approaches which comprised of different methods and techniques for supporting one or more of these processing stages is presented. The analysis of such approaches presents the dimensions of the CCR task and its related research area to figure out the possible path for the future.