Personalized Event-Based Surveillance and Alerting Support for the Assessment of Risk

Details Personalized Event-Based Surveillance and Alerting Support for the Assessment of Risk Personalized Event-Based Surveillance and Alerting Support for the Assessment of Risk

2011-01-04

arxiv.org/abs/1101.0654v1

Computer Science

Computers and Society

International Meeting on Emerging Diseases and Surveillance. IMED 2011 - Poster Session - Vienna, Austria. February 4-7, 2011

Scientific paper

In a typical Event-Based Surveillance setting, a stream of web documents is continuously monitored for disease reporting. A structured representation of the disease reporting events is extracted from the raw text, and the events are then aggregated to produce signals, which are intended to represent early warnings against potential public health threats. To public health officials, these warnings represent an overwhelming list of "one-size-fits-all" information for risk assessment. To reduce this overload, two techniques are proposed. First, filtering signals according to the user's preferences (e.g., location, disease, symptoms, etc.) helps reduce the undesired noise. Second, re-ranking the filtered signals, according to an individual's feedback and annotation, allows a user-specific, prioritized ranking of the most relevant warnings. We introduce an approach that takes into account this two-step process of: 1) filtering and 2) re-ranking the results of reporting signals. For this, Collaborative Filtering and Personalization are common techniques used to support users in dealing with the large amount of information that they face.

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