This file contains documentation on the TDT5 Topics and Annotations, Linguistic Data Consortium (LDC) catalog number LDC2006T19 and isbn 1-58563-418-2.
This release includes topic relevance judgments and associated information for the TDT5 2004 evaluation topics. This release contains complete relevance judgments, including the results of adjudication, in which discrepancies between system submissions and LDC annotations are reviewed and relevance judgments updated. This release also contains answer keys for the link detection task.
The TDT5 corpora were created by Linguistic Data Consortium with support from the DARPA TIDES (Translingual Information Detection, Extraction and Summarization) Program. The multilingual news text corresponding to this publication can be found in LDC Publication LDC2006T18, TDT5 Multilingual News Text.
Data A total of 250 topics, numbered 55001 - 55250, were annotated by LDC using a search guided annotation technique. Details of the annotation process are described in the annotation task definition.
Approximately 25% of the topics are monolingual English (ENG), 25% are monolingual Mandarin Chinese (MAN), 25% are monolingual Arabic (ARB), and 25% are multilingual:
Broken down by language and counting both mono- and multi-lingual topics:
| 63 ||ENG |
|62 ||MAN |
|62 ||ARB |
|35 ||ARB ENG MAN |
|21 ||ENG MAN |
|7 ||ARB ENG |
For an example of the data in this corpus, please review this sample from the link detection files.
Portions © 2004, 2006 Trustees of the University of Pennsylvania