supported by the National Natural Science Foundation of China(No.61370137,No.61272361);the National Basic Research Program of China (973 Program)(No.2012CB720702);the Ministry of Education in China Project of Humanities and Social Sciences(No.13YJC870011)
Answer extraction(AE) is one of the key technologies in developing the open domain Question & answer(Q&A) system.Its task is to yield the highest score to the expected answer based on an effective answer score strateg...