Keyphrases
- information extraction
- named entity recognition
- precision and recall
- natural language processing
- structured data
- machine learning
- free text
- relation extraction
- text mining
- open domain
- web documents
- textual data
- semantic tagging
- information retrieval
- named entities
- conditional random fields
- question answering
- text processing
- natural language text
- databases
- ontology based information extraction
- semi structured
- machine translation
- natural language
- learning algorithm
- neural network
- web mining
- hidden markov models
- text summarization
- multiscale
- image processing
- extracting meaningful
- data mining