DUTIR at TREC 2011 Chemistry Track.

Ping Zhang Hongfei Lin Jiajin Wu Yuan Lin

Published in: TREC (2011)

Keyphrases

information retrieval
test collection
question answering
clef ip
retrieval effectiveness
biomedical information retrieval
machine learning
active learning
information retrieval systems
query expansion
pseudo relevance feedback
real time tracking
ad hoc retrieval
patent retrieval
evaluation campaigns