Keyphrases
- public health
- text mining
- social media
- health related
- information extraction
- text documents
- national security
- text classification
- homeland security
- information systems
- natural language processing
- infectious disease
- data mining
- knowledge discovery
- social media data
- data analysis
- big data
- social networks
- social networking
- user generated content
- web mining
- health information
- information retrieval
- machine learning
- policy makers
- severe acute respiratory syndrome
- west nile virus
- databases
- social networking sites
- social media sites
- outbreak detection
- johns hopkins