ACE 2005 Multilingual Training Corpus

Item Name: ACE 2005 Multilingual Training Corpus
Author(s): Christopher Walker, Stephanie Strassel, Julie Medero, Kazuaki Maeda
LDC Catalog No.: LDC2006T06
ISBN: 1-58563-376-3
ISLRN: 458-031-085-383-4
DOI: https://doi.org/10.35111/mwxc-vh88
Release Date: February 15, 2006
Member Year(s): 2006
DCMI Type(s): Text
Data Source(s): broadcast conversation, broadcast news, newsgroups, weblogs
Project(s): ACE
Application(s): automatic content extraction
Language(s): Mandarin Chinese, Standard Arabic, English
Language ID(s): cmn, arb, eng
License(s): LDC User Agreement for Non-Members
Online Documentation: LDC2006T06 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Walker, Christopher, et al. ACE 2005 Multilingual Training Corpus LDC2006T06. Web Download. Philadelphia: Linguistic Data Consortium, 2006.
Related Works: View

Introduction

ACE 2005 Multilingual Training Corpus was developed by the Linguistic Data Consortium (LDC) and contains approximately 1,800 files of mixed genre text in English, Arabic, and Chinese annotated for entities, relations, and events. This represents the complete set of training data in those languages for the 2005 Automatic Content Extraction (ACE) technology evaluation. The genres include newswire, broadcast news, broadcast conversation, weblog, discussion forums, and coversational telephone speech. The data was annotated by LDC with support from the ACE Program and additional assistance from LDC.

The objective of the ACE program was to develop automatic content extraction technology to support automatic processing of human language in text form.

In November 2005, sites were evaluated on system performance in five primary areas: the recognition of entities, values, temporal expressions, relations, and events. Entity, relation, and event mention detection were also offered as diagnostic tasks. All tasks with the exception of event tasks were performed for three languages, English, Chinese, and Arabic. Events tasks were evaluated in English and Chinese only. This release comprises the official training data for these evaluation tasks.

For more information about linguistic resources for the ACE Program, including annotation guidelines, task definitions and other documentation, see LDC's ACE website.

Data

Below is information about the amount of data in this release and its annotation status. Further information such as breakdown of genres and formats can be found in the associated README file.

    • 1P: data subject to first pass (complete) annotation
    • DUAL: data also subject to dual first pass (complete) annotation
    • ADJ: data also subject to discrepancy resolution/adjudication
    • NORM: data also subject to TIMEX2 normalization

 

English
words files
1P DUAL ADJ NORM 1P DUAL ADJ NORM
303833 297185 216545 259889 666 650 535 599

 

Chinese Note: Chinese data expressed in terms of characters. We assume a correspondence of roughly 1.5 characters/word.
chars files
1P DUAL ADJ 1P DUAL ADJ
334121 325834 307991 687 671 633

 

Arabic
words files
1P DUAL ADJ 1P DUAL ADJ
112233 103504 100114 433 409 403

 

Samples

For examples of the data in this publication, please review the following samples:

Updates

None at this time.

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