BOLT Information Retrieval Comprehensive Training and Evaluation

Item Name: BOLT Information Retrieval Comprehensive Training and Evaluation
Author(s): Kira Griffitt, Stephanie Strassel
LDC Catalog No.: LDC2018T18
ISBN: 1-58563-855-2
ISLRN: 384-402-057-006-6
Release Date: September 17, 2018
Member Year(s): 2018
DCMI Type(s): Text
Data Source(s): discussion forum
Project(s): BOLT
Application(s): information retrieval, machine translation
Language(s): Egyptian Arabic, Mandarin Chinese, English
Language ID(s): arz, cmn, eng
License(s): LDC User Agreement for Non-Members
Online Documentation: LDC2018T18 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Griffitt, Kira, and Stephanie Strassel. BOLT Information Retrieval Comprehensive Training and Evaluation LDC2018T18. Web Download. Philadelphia: Linguistic Data Consortium, 2018.
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BOLT Information Retrieval Comprehensive Training and Evaluation was developed by the Linguistic Data Consortium (LDC) and consists of all data produced in support of the Information Retrieval (IR) task within the DARPA Broad Operational Language Translation (BOLT) Program, including annotations, source documents and scoring software.

The BOLT program developed machine translation and information retrieval for less formal genres, focusing particularly on user-generated content. LDC supported BOLT by collecting informal data sources -- discussion forums, text messaging and chat -- in Chinese, Egyptian Arabic and English. The collected data was translated and annotated for various tasks including word alignment, treebanking, propbanking and co-reference.

The material in this release relates to the IR task, which sought to support development of systems that could: (1) take as input a natural language English query sentence; (2) return relevant responses to that query from a large corpus of informal documents in the three BOLT languages (Arabic, Chinese, and English); and (3) translate responses from non-English documents into English.


BOLT Information Retrieval Comprehensive Training and Evaluation contains the pilot, dry run, and evaluation data developed for each phase of the BOLT IR task, including: (1) natural-language IR queries, system responses to queries, and manually-generated assessment judgments for system responses; (2) discussion forum source documents in Arabic, Chinese and English; (3) scoring software for each evaluation phase; and (4) experimental data developed in Phase 2.

Source data is presented as a series of zip archives containing xml files. Queries and responses data are presented as XML as well. Judgments are included as tab delimited files.


This material is based upon work supported by the Defense Advanced Research Projects Agency (DARPA) under Contract No. HR0011-11-C-0145. The content does not necessarily reflect the position or the policy of the Government, and no official endorsement should be inferred.


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