Peking: Building Semantic Dependency Graphs with a Hybrid Parser
Yantao Du, Fan Zhang, Xun Zhang, Weiwei Sun, Xiaojun Wan · 2015
This paper is a description of our system for SemEval-2015 Task 18: Broad-Coverage Semantic Dependency Parsing.We implement a hybrid parser which benefits from both transition-based and graph-based parsing approaches.In particular, the tree approximation method is explored to take advantage of wellstudied tree parsing techniques.Evaluation on multilingual data sets demonstrates that considerably good semantic analysis can be automatically built by applying state-of-the-art data-driven parsing techniques.