@InProceedings{muis-lu:2017:EMNLP2017,
  author    = {Muis, Aldrian Obaja  and  Lu, Wei},
  title     = {Labeling Gaps Between Words: Recognizing Overlapping Mentions with Mention Separators},
  booktitle = {Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing},
  month     = {September},
  year      = {2017},
  address   = {Copenhagen, Denmark},
  publisher = {Association for Computational Linguistics},
  pages     = {2608--2618},
  abstract  = {In this paper, we propose a new model that is capable of recognizing
	overlapping mentions. We introduce a novel notion of mention separators that
	can be effectively used to capture how mentions overlap with one another. On
	top of a novel multigraph representation that we introduce, we show that
	efficient and exact inference can still be performed. We present some
	theoretical analysis on the differences between our model and a recently
	proposed model for recognizing overlapping mentions, and discuss the possible
	implications of the differences. Through extensive empirical analysis on
	standard datasets, we demonstrate the effectiveness of our approach.},
  url       = {https://www.aclweb.org/anthology/D17-1276}
}