David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
Learn more about PhilPapers
Many named entities contain other named entities inside them. Despite this fact, the ﬁeld of named entity recognition has almost entirely ignored nested named entity recognition, but due to technological, rather than ideological reasons. In this paper, we present a new technique for recognizing nested named entities, by using a discriminative constituency parser. To train the model, we transform each sentence into a tree, with constituents for each named entity (and no other syntactic structure). We present results on both newspaper and biomedical corpora which contain nested named entities. In three out of four sets of experiments, our model outperforms a standard semi-CRF on the more traditional top-level entities. At the same time, we improve the overall F-score by up to 30% over the ﬂat model, which is unable to recover any nested entities.
|Keywords||No keywords specified (fix it)|
No categories specified
(categorize this paper)
Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
|Through your library||
References found in this work BETA
No references found.
Citations of this work BETA
No citations found.
Similar books and articles
Christopher D. Manning, An Effective Two-Stage Model for Exploiting Non-Local Dependencies in Named Entity Recognition.
Christopher Manning, A System For Identifying Named Entities in Biomedical Text: How Results From Two Evaluations Reﬂect on Both the System and the Evaluations.
Sobhi Rayan (2009). Nominal Definition in the Writings of Ibn Taymiyya. International Studies in the Philosophy of Science 23 (2):123 – 141.
Andrew A. Fingelkurts & Alexander A. Fingelkurts (2012). Mind as a Nested Operational Architectonics of the Brain. Physics of Life Reviews 9 (1):49-50.
Masakado Kawata (1987). Units and Passages: A View for Evolutionary Biology and Ecology. [REVIEW] Biology and Philosophy 2 (4):415-434.
Sobhi Rayan (2011). Translation and Interpretation in Ibn Taymiyya's Logical Definition. British Journal for the History of Philosophy 19 (6):1047 - 1065.
Eric Bapteste & John Dupré (2013). Towards a Processual Microbial Ontology. Biology and Philosophy 28 (2):379-404.
Kent E. Holsinger (1984). The Nature of Biological Species. Philosophy of Science 51 (2):293-307.
Reina Hayaki (2009). Fictions Within Fictions. Philosophical Studies 146 (3):379 - 398.
Yoav Ariel & Gil Raz (2010). Anaphors or Cataphors? A Discussion of the Two Qi 其 Graphs in the First Chapter of the Daodejing. Philosophy East and West 60 (3):391-421.
Livio Robaldo (2010). Independent Set Readings and Generalized Quantifiers. Journal of Philosophical Logic 39 (1):23-58.
Added to index2010-12-22
Total downloads6 ( #217,502 of 1,139,848 )
Recent downloads (6 months)1 ( #165,020 of 1,139,848 )
How can I increase my downloads?