Keyphrases
- structured data
- information extraction
- unstructured text
- free text
- main contribution
- knowledge management
- text mining
- generative model
- named entities
- conditional random fields
- knowledge acquisition
- knowledge representation
- domain knowledge
- machine learning
- diagnostic systems
- medical domain
- knowledge extraction
- medical diagnosis
- conceptual framework
- precision and recall
- conceptual model
- domain experts
- question answering
- knowledge discovery
- expert systems