This publication contains the TREC ("Text REtreival Conference") Mandarin Corpus used for the Chinese task in TRECs 5-6 and consist of approximately 170 megabytes of articles drawn from the People's Daily newspaper and the Xinhua newswire formatted to include TREC document IDs. The text is Mandarin Chinese and is encoded using the GB encoding scheme. The topics (questions) and relevance judgments (right answers) are not included in this publication but can be downloaded from the Data/Non-English section of the TREC web site.
The Mandarin Chinese text data is from the Xinhua News Agency and the People's Daily News Service (both from mainland China). Click here to see the appereance of a sample file from Xinhua Newswire and People's Daily. This collection of text was originally gathered by the Linguistic Data Consortium (LDC), and then adapted by the National Institute of Standards and Technology (NIST) for use in the TREC Mandarin evaluation program.