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ISBN10: 6208796954
ISBN13: 9786208796952
Publisher: Edicoes Nosso Conhecimento
Published: Mar 28 2025
Pages: 204
Weight: 0.62
Height: 0.47 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208796952
Publisher: Edicoes Nosso Conhecimento
Published: Mar 28 2025
Pages: 204
Weight: 0.62
Height: 0.47 Width: 6.00 Depth: 9.00
Language: Portuguese
Este estudo apresenta um modelo hÃbrido que aproveita os pontos fortes do agrupamento K-means e das Máquinas de Vectores de Suporte (SVM) para classificar as avaliações de produtos online. O K-means é utilizado para agrupar as crÃticas em clusters, reduzindo a complexidade dos dados e melhorando a extração de caraterÃsticas. Subsequentemente, a SVM é utilizada para classificar os dados agrupados em sentimentos positivos, negativos ou neutros. A abordagem combinada aumenta a precisão da classificação, reduz o custo computacional e lida eficazmente com grandes conjuntos de dados. Os resultados experimentais demonstram que o modelo proposto supera os classificadores autónomos tradicionais em termos de precisão, recuperação e exatidão global.
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