POSTECH at NTCIR-5 Patent Retrieval: Smoothing Experiments in a Language Modeling Approach to Patent Retrieval.
In-Su KangSeung-Hoon NaJun-Ki MinJong-Hyeok LeePublished in: NTCIR (2005)
Keyphrases
- patent retrieval
- language modeling
- retrieval model
- query expansion
- language model
- test collection
- retrieval effectiveness
- clef ip
- information retrieval
- statistical language modeling
- smoothing methods
- document retrieval
- language modeling framework
- cross lingual
- dirichlet prior
- query translation
- patent documents
- prior art
- relevant documents
- vector space
- text retrieval
- information retrieval systems
- probabilistic model
- ir evaluation
- n gram
- retrieval systems
- pseudo relevance feedback
- term frequency
- relevance model
- relevance feedback
- vector space model
- tf idf
- wordnet
- learning to rank
- query terms
- search tasks
- active learning
- natural language
- user queries
- natural language processing
- document collections
- keywords
- machine learning