Identification of helpful and not helpful online reviews within an eWOM community using text-mining techniques

[EN] Consumers represent today a significant source of information to learn about products and services quality thanks to the proliferation of user-generated content in the form of online reviews. It is thus of paramount to understand what makes online reviews helpful to consumers as this evaluation...

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Detalhes bibliográficos
Autores: Olmedilla, Maria, Martinez-Torres, Rocio, Toral, Sergio L.
Tipo de documento: capítulo de livro
Data de publicação:2018
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositório:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglês
OAI Identifier:oai:riunet.upv.es:10251/112096
Acesso em linha:https://riunet.upv.es/handle/10251/112096
Access Level:Acceso aberto
Palavra-chave:Web data
Internet data
Big data
QCA
PLS
SEM
Conference
Text mining
Unique atributes
Objective and subjective appraisal
eWOM communities
Descrição
Resumo:[EN] Consumers represent today a significant source of information to learn about products and services quality thanks to the proliferation of user-generated content in the form of online reviews. It is thus of paramount to understand what makes online reviews helpful to consumers as this evaluation might affect their purchase decisions. In this regard, this research has applied textmining techniques by extracting the characteristics from online reviews' texts of an eWOM community, and further utilized these characteristics to train a logistic classifier using three classes: helpful, neutral and not helpful. The aim is identifying which unique attributes determine whether an online review is helpful or not. Findings reveal that there are much more unique attributes classified as helpful than attributes classified as not helpful. Additionally, the unique attributes associated to helpful reviews exhibit more objective appraisal while those associated to not helpful reviews show more subjective appraisal. The proposed methodology can be used to predict the helpfulness of posted reviews and to obtain their unique attributes.