NIST TAC Source-and-Target Belief and Sentiment Evaluation

Organizer: Owen Rambow (


The 2016 BeSt Evaluation is an evaluation of sentiment and belief detection including their source and target, where sources are named entities and targets are named entities or events or relations. See the task definition for a full description.

If you wish to participate, please sign up for a mailing list specific to the BeSt eval.


  • March 4 2016: KBP2016 Registration is open.
  • August 29 2016: All gold data is available (English, Chinese, Spanish).