Towards a Semantic Information Extraction Approach from Unstructured Documents.
Massimo RuffoloLorenzo GallucciNicola LeoneMarco MannaDomenico SaccàPublished in: SEBD (2006)
Keyphrases
- unstructured documents
- information extraction
- text mining
- web documents
- structured data
- knowledge discovery
- natural language processing
- named entity recognition
- precision and recall
- semi structured
- relation extraction
- named entities
- information retrieval
- textual data
- text documents
- semantic tagging
- question answering
- text processing
- free text
- conditional random fields
- ontology population
- extracting meaningful
- domain knowledge
- database
- ontology based information extraction
- open domain
- relational learning
- text summarization
- data mining
- databases