@inproceedings{seyler-etal-2018-study,
    title = "A Study of the Importance of External Knowledge in the Named Entity Recognition Task",
    author = "Seyler, Dominic  and
      Dembelova, Tatiana  and
      Del Corro, Luciano  and
      Hoffart, Johannes  and
      Weikum, Gerhard",
    booktitle = "Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)",
    month = jul,
    year = "2018",
    address = "Melbourne, Australia",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P18-2039",
    doi = "10.18653/v1/P18-2039",
    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.",
}