Identifying High-Impact Sub-Structures for Convolution Kernels in Document-level Sentiment Classification Zhaopeng Tu author Yifan He author Jennifer Foster author Josef van Genabith author Qun Liu author Shouxun Lin author 2012-07 text Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers) Haizhou Li editor Chin-Yew Lin editor Miles Osborne editor Gary Geunbae Lee editor Jong C Park editor Association for Computational Linguistics Jeju Island, Korea conference publication tu-etal-2012-identifying https://aclanthology.org/P12-2066/ 2012-07 338 343