@InProceedings{seyler-EtAl:2018:Short,
  author    = {Seyler, Dominic  and  Dembelova, Tatiana  and  Del Corro, Luciano  and  Hoffart, Johannes  and  Weikum, Gerhard},
  title     = {A Study of the Importance of External Knowledge in the Named Entity Recognition Task},
  booktitle = {Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)},
  month     = {July},
  year      = {2018},
  address   = {Melbourne, Australia},
  publisher = {Association for Computational Linguistics},
  pages     = {241--246},
  abstract  = {In this work, we discuss the importance of external knowledge for performing Named Entity Recognition (NER). We present a novel modular framework that divides the knowledge into four categories according to the depth of knowledge they convey. Each category consists of a set of features automatically generated from different information sources, such as a knowledge-base, a list of names, or document-specific semantic annotations. Further, we show the effects on performance when incrementally adding deeper knowledge and discuss effectiveness/efficiency trade-offs.},
  url       = {http://www.aclweb.org/anthology/P18-2039}
}