Keyphrases
- wordnet
- named entities
- co occurrence
- natural language processing
- named entity recognition
- word sense disambiguation
- information extraction
- semantic relations
- text documents
- semantic information
- relation extraction
- text mining
- question answering
- lexical database
- linguistic features
- semantic similarity
- semantic features
- knowledge base
- machine learning
- knowledge representation
- natural language
- keywords
- noun phrases
- linguistic knowledge
- machine translation
- databases