1. Sentiment analysis of Twitter data;Agarwal,2011
2. Concise Encyclopedia of Semantics;Allan,2010
3. Freeling 1.3: Syntactic and semantic services in an open-source nlp library;Atserias,2006
4. Sentiwordnet 3.0: An enhanced lexical resource for sentiment analysis and opinion mining;Baccianella,2010
5. Revealing patterns of Twitter emoji usage in Barcelona and Madrid;Barbieri,2016