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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 2 of 2 1 The design of OPTIMISM, an opinion mining system for Portuguese politics Mário J. Silva; Paula Carvalho; Luís Sarmento... In: http://paginas.fe.up.pt/~niadr/PUBLICATIONS/2009/epia2009-OPTIMISM-submitted.pdf (2009) BASE Show details 2 The Design of OPTIMISM, an Opinion Mining System for Portuguese Politics Mário J. Silva; Paula Carvalho; Luís Sarmento; Pedro Magalhães; Eugénio Oliveira In: http://epia2009.web.ua.pt/onlineEdition/565.pdf Abstract: Abstract. We present the design of OPTIMISM, an opinion mining system for detection and classification of opinions about relevant political actors, regarding a particular topic of debate. The system gathers opinion-rich texts from Portuguese social media, which are then classified according to their semantic orientation and intensity. Together with the main design decisions, we present the linguistic resources for sentiment analysis in Portuguese under development and the evaluation plan. Evaluation includes comparing opinion statistics produced by the system against poll data collected purposefully for this evaluation. Keyword: Crowdsourcing; Natural Language Processing; Opinion mining; Sentiment analysis; Social Web URL: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.232.7586 http://epia2009.web.ua.pt/onlineEdition/565.pdf BASE Hide details

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