Improving Web 2.0 Opinion Mining Systems Using Text Normalisation Techniques Alejandro Mosquera author Paloma Moreda Pozo author 2013-09 text Proceedings of the International Conference Recent Advances in Natural Language Processing RANLP 2013 Ruslan Mitkov editor Galia Angelova editor Kalina Bontcheva editor INCOMA Ltd. Shoumen, BULGARIA Hissar, Bulgaria conference publication mosquera-moreda-pozo-2013-improving https://aclanthology.org/R13-1064/ 2013-09 491 495