tech,28-6-P05-1053,ak | </term> and significantly outperforms <term> | tree kernel-based systems | </term> by over 20 in <term> F-measure </term> | #9407 Evaluation on the ACE corpus shows that effective incorporation of diverse features enables our system outperform previously best-reported systems on the 24 ACE relation subtypes and significantly outperforms tree kernel-based systems by over 20 in F-measure on the 5 ACE relation types. |