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Displaying results 249 - 256 of 826
  • Automated Generation of Hypothesis of Processes Causing Clusters

    Content Type: Abstract

    Computational and statistical methods for detecting disease clusters, such as the spatial scan statistic, have become frequently used tools in epidemiology. However, they simply tell the user where a cluster is, and leave the… read more
    … dispersion within a river. The pattern matching module com- pares the shape of the detected cluster with the shapes … Source code available at http://code.google.com/p/clusterer/ Cluster Detection Pattern/Process Database …
  • Use of Surveillance Data to Measure the Impact of Viral Infections among Young Children

    Content Type: Abstract

    Respiratory viruses cause substantial morbidity and costly resource utilization among young children, especially during the winter months. Accurate estimates of the impact of these viruses are important in guiding prevention efforts… read more
    … higher ED and outpatient resource utilization as com- pared with influenza, especially among children <2 … Monto AS, Sullivan KM. Acute respiratory illness I the com- munity: frequency of illness and the agents involved. …
  • Anomaly Pattern Detection for Biosurveillance

    Content Type: Abstract

    We propose a new method for detecting patterns of disease cases that correspond to emerging outbreaks. Our Anomaly Pattern Detector (APD) first uses a "local anomaly detector" to identify individually anomalous records and then searches over subsets… read more
    … GI). In order to determine if the subset of the test data cor- responding to rule R has an unexpectedly high con- centration of anomalies, we compare it to the corres- … Further Information: Daniel B. Neill, neill@cs.cmu.edu www.cs.cmu.edu/~neill and www.autonlab.org Advances in …
  • Effect of Work-related Mobility in the Simulation of Aerosol Anthrax Releases with BARD

    Content Type: Abstract

    An important problem in biosurveillance is the early detection and characterization of outdoor aerosol releases of B. anthracis. The Bayesian Aerosol Release Detector (BARD) is a system for simulating, detecting and characterizing such releases… read more
    … it takes into account the work-related mobility and to com- pare the refined simulator with the existing one. … work was sup- ported by grant CDC-R01PH000026-01. The con- tents do not necessarily represent the official view of …
  • High Performance Computing for Disease Surveillance

    Content Type: Abstract

    Space-time detection of disease clusters can be a computationally intensive task which defies the real time constraint for disease surveillance. At the same time, it has been shown that using exact patient locations, instead of their representative… read more
    … OBJECTIVE Space-time detection techniques often require com- putationally intense searching in both the time and … computing platforms, such as a Linux Beowulf Cluster, can come closer to meeting the needs of real time surveillance …
  • Looking for Anthrax: Feasibility Study of Free Text Analytics for Emergency Department Syndromic Surveillance

    Content Type: Abstract

    The primary objective of this study is to assess the capability of an advanced text analytics tool that uses natural language processing techniques to extract important medical information collected as part of routine emergency room care (history,… read more
    … response. Currently, most developed tools are based on a cod- ing schema (i.e., International Classification of Dis- … Further Information: Hillary Kleiner, kleiner_hillary@bah.com Advances in Disease Surveillance 2007;4:20 …
  • Directionally Sensitive Multivariate Statistical Process Control Procedures with Application to Syndromic Surveillance

    Content Type: Abstract

    Current syndromic surveillance systems run multiple simultaneous univariate procedures, each focused on detecting an outbreak in a single data stream. Multivariate procedures have the potential to better detect some types of outbreaks, but most of… read more
    … There are two reasons to use this region for S as com- pared with, say, S0 based on the positive orthant as … dures. Finally, the best procedures from the previous com- parisons are compared in an effort to determine whether … h = 2.125 (for each individual procedure) to achieve a com- bined estimated in-control ARL of approximately 100. In …
  • Association Between World Trade Center Exposure and Excess Cancer Risk

    Content Type: Webinar

    The terrorist attacks of September 11, 2001, resulted in the release of known and suspected carcinogens into the environment. There is public concern that exposures may have resulted in increased cancers. This presentation will highlight a study… read more
    … among those highly exposed to those less exposed, using Cox Proportional Hazards model §  WTC exposures were … (NYS, NJ, CT, MA, OH, PA, NC, FL, TX, CA, & WA) Co-Authors: Amy R. Kahn (NYSDOH) Robert M. Brackbill … The cancer paper http://jama.jamanetwork.com/article.aspx?articleid=1486831 …