Empirical Term Weighting and Expansion Frequency.

Kyoji Umemura Kenneth Ward Church

Published in: EMNLP (2000)

Keyphrases

term weighting
text retrieval
information retrieval
text categorization
tf idf
language modeling
term frequency
retrieval systems
inverse document frequency
document frequency
vector space model
machine learning
active learning
information retrieval systems
training data
test collection
co occurrence