Experiments on Patent Retrieval at NTCIR-4 Workshop.

Hironori Takeuchi Naohiko Uramoto Koichi Takeda

Published in: NTCIR (2004)

Keyphrases

patent retrieval
clef ip
test collection
patent search
prior art
query translation
patent documents
retrieval effectiveness
query expansion
retrieval model
information retrieval
ir evaluation
domain specific
language model
intellectual property
cross language information retrieval
information retrieval systems