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A social-event based approach to sentiment analysis of identities and behaviors in text
Authors:Kenneth Joseph  Wei Wei  Matthew Benigni  Kathleen M Carley
Institution:1. Societal Computing Program, Carnegie Mellon University, Pittsburgh, Pennsylvania, USAkjoseph@cs.cmu.edu;3. Societal Computing Program, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
Abstract:We describe a new methodology to infer sentiments held toward identities and behaviors from social events that we extract from a large corpus of newspaper text. Our approach draws on affect control theory, a mathematical model of how sentiment is encoded in social events and culturally shared views toward identities and behaviors. While most sentiment analysis approaches evaluate concepts on a single, evaluative dimension, our work extracts a three-dimensional sentiment “profile” for each concept. We can also infer when multiple sentiment profiles for a concept are likely to exist. We provide a case study of a large newspaper corpus on the Arab Spring, which helps to validate our approach.
Keywords:Affect control theory  Arab Spring  Bayesian inference  machine learning  natural language processing  sentiment analysis
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