NJU-Parser: Achievements on Semantic Dependency Parsing
Guangchao Tang, Bin Li, Shuaishuai Xu, Xinyu Dai, Jiajun Chen · 2012
In this paper, we introduce our work on SemEval-2012 task 5: Chinese Semantic De-pendency Parsing. Our system is based on MSTParser and two effective methods are proposed: splitting sentence by punctuations and extracting last character of word as lemma. The experiments show that, with a combina-tion of the two proposed methods, our system can improve LAS about one percent and final-ly get the second prize out of nine participat-ing systems. We also try to handle the multi-level labels, but with no improvement. 1