Keyphrases
- semantic information
- text segmentation
- information retrieval
- knowledge base
- text representation
- domain knowledge
- syntactic categories
- world knowledge
- text mining
- knowledge acquisition
- semantic web
- semantic network
- machine learning
- grammar induction
- ontology mapping
- inductive learning
- database
- active learning
- knowledge representation
- domain ontology
- clustering algorithm
- semi supervised
- supervised learning
- semi automatically
- semantic representation
- semantic relationships
- text documents
- topic modeling
- key concepts
- free text
- natural language processing
- constructive induction
- semantically rich
- wordnet
- text retrieval
- semantic annotation
- background knowledge