ScholarGate
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Process / pipeline

Analisi del sentiment basata su lessico

L'analisi del sentiment basata su lessico calcola il sentiment a livello di parola utilizzando dizionari di sentiment predefiniti come AFINN (Nielsen, 2011), SentiWordNet, VADER (Hutto & Gilbert, 2014) e NRC Emotion Lexicon. Valuta il testo cercando le parole in un dizionario di termini "carichi", quindi non richiede dati di addestramento etichettati.

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Fonti

  1. Nielsen, F.Å. (2011). A New ANEW: Evaluation of a Word List for Sentiment Analysis in Microblogs. Proceedings of the ESWC Workshop on 'Making Sense of Microposts'. link
  2. Hutto, C.J. & Gilbert, E. (2014). VADER: A Parsimonious Rule-based Model for Sentiment Analysis of Social Media Text. Proceedings of the International AAAI Conference on Web and Social Media (ICWSM), 8(1), 216-225. DOI: 10.1609/icwsm.v8i1.14550

Come citare questa pagina

ScholarGate. (2026, June 1). Lexicon-Based Sentiment Analysis. ScholarGate. https://scholargate.app/it/text-mining/lexicon-based-sentiment

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ScholarGateLexicon-Based Sentiment Analysis (Lexicon-Based Sentiment Analysis). Consultato il 2026-06-15 da https://scholargate.app/it/text-mining/lexicon-based-sentiment · Insieme di dati: https://doi.org/10.5281/zenodo.20539026