Keyphrases
- information extraction
- natural language processing
- precision and recall
- data driven
- text mining
- machine learning
- free text
- constraint solving
- named entity recognition
- question answering
- structured data
- machine translation
- word sense disambiguation
- linear constraints
- real time
- hierarchical structure
- information retrieval
- textual data
- social networks
- hierarchical classification
- hierarchical model
- soft constraints
- relational learning
- unsupervised learning
- website
- conditional random fields
- natural language