NIST TAC Source-and-Target Belief and Sentiment Evaluation

Organizer: Owen Rambow (


The 2017 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.

The official registration deadline is June 15 2017, but registration will be accepted through Aug 31, 2017. See the link at left for registration. If you wish to participate, please sign up for a mailing list specific to the BeSt eval.