Sentiment Aggregation using ConceptNet Ontology Subhabrata Mukherjee author Sachindra Joshi author 2013-10 text Proceedings of the Sixth International Joint Conference on Natural Language Processing Ruslan Mitkov editor Jong C Park editor Asian Federation of Natural Language Processing Nagoya, Japan conference publication mukherjee-joshi-2013-sentiment https://aclanthology.org/I13-1065/ 2013-10 570 578