Comparison of IPC and USPC classification systems in patent prior art searches.

Christopher G. Harris Robert Arens Padmini Srinivasan

Published in: PaIR@CIKM (2010)

Keyphrases

prior art
classification systems
patent documents
patent retrieval
clef ip
patent search
intellectual property
feature selection
database systems
digital libraries
pseudo relevance feedback
hierarchical text classification