Multi-Pattern Wrappers for Relation Extraction from the Web.
Benjamin HabeggerMohamed QuafafouPublished in: ECAI (2002)
Keyphrases
- relation extraction
- information extraction
- automatic extraction
- named entities
- domain specific
- extraction patterns
- semantic relations
- web documents
- web pages
- dependency trees
- question answering
- named entity recognition
- semantic role labeling
- semantic web
- reference resolution
- dependency tree
- semantic features
- tree kernels
- broad coverage
- machine learning
- extraction rules
- parse tree
- knowledge sources
- information sources
- text classification
- natural language processing
- hidden markov models
- expert systems
- artificial intelligence