Invited Keynote: What are Subjectivity, Sentiment, and Affect? Eduard Hovy author 2011-11 text Proceedings of the Workshop on Sentiment Analysis where AI meets Psychology (SAAIP 2011) Sivaji Bandyopadhyay editor Manabu Okumura editor Asian Federation of Natural Language Processing Chiang Mai, Thailand conference publication hovy-2011-invited https://aclanthology.org/W11-3701/ 2011-11 1