The TDT2 English Corpus has been designed to include six months of material drawn on a daily basis from six English news sources. The period of time covered is from January 4 to June 30, 1998. The six sources are the New York Times News Service, the Associated Press Worldstream News Service, CNN "Headline News", ABC "World News Tonight", Public Radio International's "The World", and the Voice of America.
The following sections describe each source in detail, with regard to its content, how it is received and processed, and any special properties it may have.