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Estrazione delle opinioni tramite la corrispondenza del lessico basata sul modello di Markov nascosto

Estrazione delle opinioni tramite la corrispondenza del lessico basata sul modello di Markov nascosto

Aakanksha Sharaff / Swati Soni

44,83 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Informática: cuestiones generales
ISBN:
9786207956982
44,83 €
IVA incluido
Disponible

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Un gran numero di prodotti è oggi disponibile in vari siti web per il commercio. Per conoscere il prodotto, il venditore o il produttore spesso chiede ai clienti di condividere le loro opinioni e le loro esperienze sui prodotti acquistati. Sfortunatamente, è un compito molto gravoso passare in rassegna tutti i commenti delle recensioni e decidere se il prodotto è all’altezza del livello di soddisfazione del cliente o meno. Il problema principale di queste recensioni è quello di gestire tutti i commenti e di creare una sintesi significativa delle recensioni, sia che rappresentino un giudizio positivo o un feedback sul prodotto, sia che siano negative o neutre. Il compito principale è quindi quello di costruire un dizionario di entità a partire da queste recensioni. Questo libro si concentra sulla creazione di un modello per la corrispondenza del lessico utilizzando il Modello di Markov Nascosto (HMM) e il Fuzzy K-Means Clustering. I risultati indicano che il sistema HMM addestrato è molto promettente nello svolgere i compiti desiderati e ha raggiunto la massima precisione e accuratezza possibile nel caso del Lexicon Matching.

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