English. The SENTIment POLarity Clas-sification Task (SENTIPOLC), a new shared task in the Evalita evaluation cam-paign, focused on sentiment classification at the message level on Italian tweets. It included three subtasks: subjectivity classification, polarity classification, and irony detection. SENTIPOLC was the most participated Evalita task with a to-tal of 35 submitted runs from 11 differ-ent teams. We present the datasets and the evaluation methodology, and discuss results and participating systems. Italiano. Descriviamo modalita ̀ e risultati della campagna di valutazione di sistemi di sentiment analysis (SENTIment POLar-ity Classification Task), proposta per la prima volta a “Evalita–2014: Evalua-tion of NLP and Speech Tools for I...