KBA 2012 was very exciting: 11 teams submitted 43 runs to solve the CCR task.
KBA 2013 is gearing up with more tasks and an even richer stream corpus.
Join the TREC KBA discussion forum for updates.
KBA seeks to help humans expand knowledge bases like Wikipedia by automatically recommending edits based on incoming content streams. This open evaluation measures an automatic system's ability to filter a large stream of text for new knowledge about entities.