Solving Feature Sparseness in Text Classification using Core-Periphery Decomposition Xia Cui author Sadamori Kojaku author Naoki Masuda author Danushka Bollegala author 2018-06 text Proceedings of the Seventh Joint Conference on Lexical and Computational Semantics Malvina Nissim editor Jonathan Berant editor Alessandro Lenci editor Association for Computational Linguistics New Orleans, Louisiana conference publication cui-etal-2018-solving 10.18653/v1/S18-2030 https://aclanthology.org/S18-2030/ 2018-06 255 264