Patent Retrieval in Chemistry Based on Semantically Tagged Named Entities.
Harsha GurulingappaBernd MüllerRoman KlingerHeinz-Theodor MevissenMartin Hofmann-ApitiusJuliane FluckChristoph M. FriedrichPublished in: TREC (2009)
Keyphrases
- named entities
- patent retrieval
- clef ip
- prior art
- information extraction
- test collection
- named entity extraction
- patent documents
- co occurrence
- query translation
- retrieval effectiveness
- text mining
- natural language processing
- question answering
- query expansion
- text documents
- information retrieval
- noun phrases
- natural language
- intellectual property
- semantic information
- unsupervised learning
- retrieval model
- databases
- artificial intelligence
- relevant documents
- domain specific
- machine learning