Using temporal IDF for efficient novelty detection in text streams.

Margarita Karkali François Rousseau Alexandros Ntoulas Michalis Vazirgiannis

Published in: CoRR (2014)

Keyphrases

novelty detection
text streams
event detection
temporal reasoning
feature selection
co occurrence
multi dimensional
semi supervised learning
topic models
temporal information
news articles
temporal constraints
temporal patterns