Keyphrases
- world knowledge
- text generation
- domain knowledge
- knowledge acquisition
- bipartite graph
- graph model
- key concepts
- graph representation
- data mining techniques
- domain experts
- knowledge representation
- expert systems
- knowledge base
- information retrieval
- knowledge sharing
- directed graph
- unstructured text
- linguistic information
- learning systems
- conceptual retrieval
- textual case based reasoning
- background knowledge
- semantic information
- structured data
- database
- random walk
- knowledge based systems
- text mining
- information extraction
- keywords
- clustering algorithm
- search engine
- machine learning