ARTICLE
H-TFIDF
Lien de l'article :
https://hal.science/hal-04891293v1
Discipline :
Informatique
Auteur(s) :
Rémy Decoupes, Rodrique Kafando, Mathieu Roche, Maguelonne Teisseire
Auteur(s) tagués :
KAFANDO Rodrique
Renseignée par : KAFANDO Rodrique
Résumé
This project aims to extract discriminative terms on spatial and time windows. We extend TF-IDF into H-TFIDF (Hierarchical TF-IDF). H-TFIDF is a method for term extraction from tweet data based on spatio-temporal criteria. Browsing through spatial and temporal hierarchies (from country to city and month today) provides insight of local concerns at differentscales. This method, applied on COVID-19 relatedtweets, illustrates how public health agencies could
Mots-clés
NLP, Crisis, TF-IDF