Test Collections for Patent Retrieval and Patent Classification in the Fifth NTCIR Workshop.
Atsushi FujiiMakoto IwayamaNoriko KandoPublished in: LREC (2006)
Keyphrases
- patent retrieval
- test collection
- clef ip
- patent search
- prior art
- retrieval effectiveness
- patent documents
- retrieval model
- ir evaluation
- search tasks
- information retrieval
- newspaper articles
- document collections
- retrieval systems
- relevant documents
- query expansion
- query translation
- language model
- information retrieval evaluation
- patent prior art search
- learning algorithm
- relevance judgments
- average precision
- machine learning
- pseudo relevance feedback
- vector space model
- language modeling
- supervised learning
- feature vectors
- feature space
- metadata
- evaluation of information retrieval systems