Integrating Open and Closed Information Extraction: Challenges and First Steps.
Arnab DuttaChristian MeilickeMathias NiepertSimone Paolo PonzettoPublished in: NLP-DBPEDIA@ISWC (2013)
Keyphrases
- structured data
- information extraction
- semi structured
- free text
- natural language processing
- textual data
- precision and recall
- machine learning
- information retrieval
- machine translation
- text mining
- relation extraction
- text documents
- key issues
- lessons learned
- technical challenges
- relational learning
- open issues
- closed world
- real world
- named entities
- text classification
- data structure
- queueing networks
- neural network
- word sense disambiguation
- conditional random fields
- open domain