Ontology-Based Information Extraction from Twitter Kamel Nebhi author 2012-12 text Proceedings of the Workshop on Information Extraction and Entity Analytics on Social Media Data Sriram Raghavan editor Ganesh Ramakrishnan editor The COLING 2012 Organizing Committee Mumbai, India conference publication nebhi-2012-ontology https://aclanthology.org/W12-5502/ 2012-12 17 22