Keyphrases
- information extraction
- precision and recall
- natural language processing
- machine learning
- free text
- question answering
- text mining
- information retrieval
- named entity recognition
- named entities
- semi structured
- textual data
- structured data
- relational learning
- extracting meaningful
- natural language
- unstructured text
- open domain
- conditional random fields
- text processing
- relation extraction
- ontology based information extraction
- machine translation
- text documents
- hidden markov models
- artificial intelligence
- data analysis
- multiscale
- information systems
- information extraction systems
- semantic tagging
- real world