PIRPO: An Algorithm to deal with Polarity in Portuguese Online Reviews from the Accommodation Sector

This paper presents the algorithm Polarity Recognizer in Portuguese (PIRPO) to classify sentiment in online reviews. PIRPO was constructed to identify polarity in Portuguese user-generated accommodation reviews. Each review is analysed according to concepts from a domain ontology. We decompose the r...

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Detalhes bibliográficos
Autor principal: Chaves, Marcirio (author)
Outros Autores: Freitas, Larissa (author), Souza, Marlo (author), Vieira, Renata (author)
Formato: conferenceObject
Idioma:eng
Publicado em: 2012
Assuntos:
Portuguese Online Reviews
Portuguese Sentiment Analysis
Portuguese Opinion Mining
Accommodation Sector
Texto completo:http://hdl.handle.net/10884/640
País:Portugal
Oai:oai:repositorio-cientifico.uatlantica.pt:10884/640
Descrição
Resumo:This paper presents the algorithm Polarity Recognizer in Portuguese (PIRPO) to classify sentiment in online reviews. PIRPO was constructed to identify polarity in Portuguese user-generated accommodation reviews. Each review is analysed according to concepts from a domain ontology. We decompose the review in sentences in order to assign a polarity to each concept of the ontology in the sentence. Preliminary results indicate an average F-score of 0.32 for polarity recognition.

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