Introduction

Arabic Treebank: Part 1 (ATB1) v 4.1, Linguistic Data Consortium (LDC) catalog number LDC2010T13 and isbn 1-58563-566-9, was developed at LDC. It consists of 734 newswire stories from Agence France Presse (AFP) with part-of-speech (POS), morphology, gloss and syntactic treebank annotation in accordance with the Penn Arabic Treebank (PATB) Guidelines developed in 2008 and 2009. This release represents a significant revision of LDCs previous ATB1 publications: Arabic Treebank: Part 1 v 2.0 LDC2003T06 and Arabic Treebank: Part 1 v 3.0 (POS with full vocalization + syntactic analysis) LDC2005T02.

The ongoing PATB project supports research in Arabic-language natural language processing and human language technology development. The methodology and work leading to the release of this publication are described in detail in the documentation accompanying this corpus and in two research papers: Enhancing the Arabic Treebank: A Collaborative Effort toward New Annotation Guidelines and Consistent and Flexible Integration of Morphological Annotation in the Arabic Treebank.

Data

ATB1 v 4.1 contains a total of 145,386 tokens before clitics are split, and 167,280 tokens after clitics are separated for the treebank annotation.

Sponsorship

This work was supported in part by the Defense Advanced Research Projects Agency, GALE Program Grant No. HR0011-06-1-0003. The content of this publication does not necessarily reflect the position or the policy of the Government, and no official endorsement should be inferred.

Samples

For an example of the data in this corpus, please review the sample file.

Updates

No updates have been issued as of this time.

Content Copyright

Portions © 2000 Agence France Presse, © 2003, 2005, 2010 Trustees of the University of Pennsylvania