OntoNotes Release 4.0

Item Name: OntoNotes Release 4.0
Authors: Ralph Weischedel, Martha Palmer, Mitchell Marcus, Eduard Hovy, Sameer Pradhan, Lance Ramshaw, Nianwen Xue, Ann Taylor, Jeff Kaufman, Michelle Franchini, Mohammed El-Bachouti, Robert Belvin, Ann Houston
LDC Catalog No.: LDC2011T03
ISBN: 1-58563-574-X
Release Date: Feb 15, 2011
Data Type: text
Data Source(s): broadcast conversation, broadcast news, newsgroups, newswire, weblogs
Project(s): GALE
Application(s): information extraction, information retrieval
Language(s): Arabic, Chinese, English
Language ID(s): ara, cmn, eng
Distribution: 1 DVD
Member fee: $0 for 2011 members
Non-member Fee: US $0.00
Reduced-License Fee: US $
Extra-Copy Fee: US $
Non-member License: yes
Online documentation: yes
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Ralph Weischedel, et al.
OntoNotes Release 4.0
Linguistic Data Consortium, Philadelphia


OntoNotes Release 4.0, Linguistic Data Consortium (LDC) catalog number LDC2011T03 and isbn 1-58563-574-X, was developed as part of the OntoNotes project, a collaborative effort between BBN Technologies, the University of Colorado, the University of Pennsylvania and the University of Southern Californias Information Sciences Institute. The goal of the project is to annotate a large corpus comprising various genres of text (news, conversational telephone speech, weblogs, usenet newsgroups, broadcast, talk shows) in three languages (English, Chinese, and Arabic) with structural information (syntax and predicate argument structure) and shallow semantics (word sense linked to an ontology and coreference). OntoNotes Release 4.0 is supported by the Defense Advance Research Project Agency, GALE Program Contract No. HR0011-06-C-0022.

OntoNotes Release 4.0 contains the content of earlier releases -- OntoNotes Release 1.0 LDC2007T21, OntoNotes Release 2.0 LDC2008T04 and OntoNotes Release 3.0 LDC2009T24 -- and adds newswire, broadcast news, broadcast conversation and web data in English and Chinese and newswire data in Arabic. This cumulative publication consists of 2.4 million words as follows: 300k words of Arabic newswire 250k words of Chinese newswire, 250k words of Chinese broadcast news, 150k words of Chinese broadcast conversation and 150k words of Chinese web text and 600k words of English newswire, 200k word of English broadcast news, 200k words of English broadcast conversation and 300k words of English web text.

The OntoNotes project builds on two time-tested resources, following the Penn Treebank for syntax and the Penn PropBank for predicate-argument structure. Its semantic representation will include word sense disambiguation for nouns and verbs, with each word sense connected to an ontology, and coreference. The current goals call for annotation of over a million words each of English and Chinese, and half a million words of Arabic over five years.


Documents describing the annotation guidelines and the routines for deriving various views of the data from the database are included in the documentation directory of this release. The annotation is provided both in separate text files for each annotation layer (Treebank, PropBank, word sense, etc.) and in the form of an integrated relational database (ontonotes-v4.0.sql.gz) with a Python API to provide convenient cross-layer access.


This release includes OntoNotes DB Tool v0.999 beta, the tool used to assemble the database from the original annotation files.It can be found in the directory ontonotes-db-tool-v0.999b. This tool can be used to derive various views of the data from the database, and it provides an API that can implement new queries or views. Licensing information for the OntoNotes DB Tool package is included in its source directory.


On May 21st, 2013 an update was issued to fix some bracketing errors in the follolwing file (ontonotes-release-4.0/data/files/data/english/annotations/nw/wsj/05/wsj_0560.parse), all corpora ordered after this date will include the update. Please contact ldc@ldc.upenn.edu for more information or to obtain the updated file.


This work is supported in part by the Defense Advanced Research Projects Agency, GALE Program Grant No. HR0011-06-1-003. The content of this publication does not necessarily reflect the position or policy of the Government, and no official endorsement should be inferred.


Content Copyright

Portions 2006 Abu Dhabi TV, 2006 Agence France Presse, 2006 Al-Ahram, 2006 Al Alam News Channel, 2006 Al Arabiya, 2006 Al Hayat, 2006 Al Iraqiyah, 2006 Al Quds-Al Arabi, 2006 Anhui TV, 2002, 2006 An Nahar, 2006 Asharq-al-Awsat, 2005 Cable News Network, LP, LLLP, 2000-2001 China Broadcasting System, 2000-2001, 2005-2006 China Central TV, 2006 China Military Online, 2000-2001 China National Radio, 2006 Chinanews.com, 2000-2001 China Television System, 1989 Dow Jones & Company, Inc., 2006 Dubai TV, 2006 Guangming Daily, 2006 Kuwait TV, 2005-2006 National Broadcasting Company, Inc., 2006 New Tang Dynasty TV, 2006 Nile TV, 2006 Oman TV, 2006 PAC Ltd, 2006 Peoples Daily Online, 2005-2006 Phoenix TV, 2000-2001 Sinorama Magazine, 2006 Syria TV, 1996-1998, 2006 Xinhua News Agency, 2007, 2008, 2009, 2011 Trustees of the University of Pennsylvania

Contact: ldc@ldc.upenn.edu 2011 Linguistic Data Consortium , Trustees of the University of Pennsylvania . All Rights Reserved.