09 Clark Freifeld -- igbos j_

Disease Outbreak Monitoring on the Web Clark Freifeld Research Software Developer Harvard Medical School Children’s Hospital Informatics Program

HealthMap Article Processing Acquisition >20,000 sites Every hour; 24/7 Clustering Text Matching Similarity Score Categorization 1700 disease patterns 5000 location patterns Bayesian Filtering 6 million phrases 91% accuracy

Multi-Stream Alarming: Heat Index ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],low high Freifeld et al. J Am Med Informatics Assn. 2008.

Limitations of English-language ,[object Object],[object Object],[object Object],[object Object],[object Object]

Case Study: Legionnaire’s in Spain June 30th Google (ES) Alert Alert #1 July 2nd ProMED-mail Alert Alert #2 July 4th Google (EN) Alert Alert #3

Early Stats ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Usage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Various implementations International Society for Infectious Disease Liberty Science Museum, NYC HHS Command Center

Future Directions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Acknowledgments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Contact ,[object Object],[object Object],[object Object]

09 Clark Freifeld -- igbos j_

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