Implementation and Evaluation of a Negation Tagger in a Pipeline-based System for Information Extraction from Pathology Reports.
Kevin J. MitchellMichael J. BecichJules J. BermanWendy W. ChapmanJohn R. GilbertsonDilip GuptaJames HarrisonElizabeth LegowskiRebecca S. CrowleyPublished in: MedInfo (2004)
Keyphrases
- information extraction
- named entities
- text mining
- named entity recognition
- precision and recall
- evaluation criteria
- information retrieval
- database systems
- logic programming
- web mining
- machine learning
- natural language processing
- domain specific
- database
- test set
- question answering
- artificial intelligence
- semi structured
- neural network
- efficient implementation
- free text
- evaluation method
- databases
- hardware implementation
- data sets