Improved TF-IDF-Based LDA Topic Clustering Model for Specific Commodity Contexts and Different Sentiment Tendencies.

Hao Chen Yile Zhu

Published in: CAIBDA (2023)

Keyphrases

high level
tf idf
probabilistic model
clustering algorithm
latent dirichlet allocation
information retrieval
feature extraction
k means
semi supervised
information retrieval systems
query expansion
text categorization
topic models
weighting scheme