... for Computational Linguistics:shortpapers, pages 42–47,Portland, Oregon, June 19-24, 2011.c2011 Association for Computational LinguisticsPart-of-Speech Tagging for Twitter: Annotation, Features, ... Creating Speech and Language Datawith Amazon’s Mechanical Turk.John Lafferty, Andrew McCallum, and Fernando Pereira.2001. Conditional random fields: Probabilistic models for segmenting and labeling ... 2010).than for Standard English text. For example, apos-trophes are often omitted, and there are frequentlywords like ima (short for I’m gonna) that cut acrosstraditional POS categories. Therefore,...