XONTO: An Ontology-Based System for Semantic Information Extraction from PDF Documents.
Ermelinda OroMassimo RuffoloPublished in: ICTAI (1) (2008)
Keyphrases
- information extraction
- pdf documents
- natural language
- natural language processing
- machine learning
- natural language text
- high level
- text mining
- question answering
- linguistic patterns
- domain specific
- expert systems
- named entities
- semantic similarity
- semantic features
- information retrieval
- databases
- information retrieval systems
- semantic annotation
- word sense disambiguation
- semantic relationships