- T. Mitamura, Zhengzhong Liu, E. Hovy. 2015. Overview of TAC KBP 2015 Event Nugget Track. Abstract: This paper describes three TAC KBP Event Nugget tasks: (1) Event Nugget Detection, (2) Event Nugget Detection and Coreference, and (3) Event Nuggest Coreference. The evaluation corpus, prepared by LDC, consists of 202 documents from newswire and discussion forum. Participating systems detect event nuggets, event types and subtypes, and Realis values. For task 1, 38 runs were submitted by 14 teams; for task 2, 19 runs were submitted by 8 teams; for task 3, 16 runs were submitted by 6 teams. After the scoring algorithms and their results, we provide some analyses of these tasks.
