Topic Detection and Tracking research was pursued under the DARPA Translingual Information Detection, Extraction, and Summarization (TIDES) program. Since the TIDES program ends in 2005, the timing and scope of the next TDT evaluation is contigent on resolving funding issues. More will be known early in 2005. Stay tuned to the TDT mailing list and this site for details. TDT research develops algorithms for discovering and threading together topically related material in streams of data such as newswire and broadcast news in both English and Mandarin Chinese. The overview paper “Multilingual Topic Detection and Tracking: Successful Research Enabled by Corpora and Evaluation,” (Wayne LREC2000) describes in more detail the TDT program, the TDT corpora (collections of broadcast news recordings and transcripts), and the TDT technology evaluation paradigm. This has been added to Data Mining Resources Subject Tracer™ Information Blog.