Keyphrases
- relation extraction
- information extraction
- automatic extraction
- named entities
- domain specific
- question answering
- semantic relations
- semantic role labeling
- semantic features
- dependency tree
- broad coverage
- named entity recognition
- video sequences
- parse tree
- reference resolution
- co occurrence
- tree kernels
- visual features
- natural language processing
- dependency trees
- machine learning
- named entity recognizer
- wordnet
- object recognition
- natural language
- information retrieval