The Validity of Lexicon-based Sentiment Analysis in Interdisciplinary Research Emily Öhman author 2021-12 text Proceedings of the Workshop on Natural Language Processing for Digital Humanities Mika Hämäläinen editor Khalid Alnajjar editor Niko Partanen editor Jack Rueter editor NLP Association of India (NLPAI) NIT Silchar, India conference publication ohman-2021-validity https://aclanthology.org/2021.nlp4dh-1.2/ 2021-12 7 12