Multi-Task Learning in Conditional Random Fields for Chunking in Shallow Semantic Parsing Saike He author Xiaojie Wang author Yuan Dong author Taozheng Zhang author Xue Bai author 2009-12 text Proceedings of the 23rd Pacific Asia Conference on Language, Information and Computation, Volume 1 Olivia Kwong editor City University of Hong Kong Hong Kong conference publication he-etal-2009-multi https://aclanthology.org/Y09-1020/ 2009-12 180 189