Skip to main content

Displaying results 17 - 24 of 33
  • Cross Disciplinary Consultancy: Negation Detection Use Case

    Content Type: Abstract

    Despite considerable effort since the turn of the century to develop Natural Language Processing (NLP) methods and tools for detecting negated terms in chief complaints, few standardised methods have emerged. Those methods that have emerged (e.g.… read more
    … text processing algorithms to identify negated terms (i.e. negation detection). 4 views Submitted by elamb on Tue, … text processing algorithms to identify negated terms (i.e. negation detection). …
  • Cross-Disciplinary Consultancy to Enhance Predictions of Asthma Exacerbation Risk in Boston

    Content Type: Journal Article

    This paper continues an initiative conducted by the International Society for Disease Surveillance with funding from the Defense Threat Reduction Agency to connect near-term analytical needs of public health practice with technical expertise from… read more
    … and modelers.  Discussion finalized design of an 8-year de-identified dataset of Boston ED patient records for … and modelers.  Discussion finalized design of an 8-year de-identified dataset of Boston ED patient records for …
  • The Evolution of ESSENCE

    Content Type: Abstract

    In development for over fourteen years, ESSENCE is a disease surveillance system utilized by public health stakeholders at city, county, state, regional, national, and global levels. The system was developed by a team from the Johns Hopkins… read more
    … sponsors, numerous collaborators, perceptive users and all of the dedicated members of the ESSENCE team. References … permitting all non-commercial use, distribution, and reproduction in … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Analytic Fusion of ESSENCE Clinical Evidence Sources for Routine Decision Support

    Content Type: Abstract

    Block 3 of the US Military Electronic Surveillance System for Early Notification of Community-Based Epidemics (ESSENCE) system affords routine access to multiple sources of data. These include administrative clinical encounter records in the… read more
    … using additional known outbreaks. Results of fusing all algorithmic output streams will be presented. … permitting all non-commercial use, distribution, and reproduction in … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Hierarchical Filtering of ESSENCE for Routine, Distributed Disease Monitoring by the Veterans Health Administration

    Content Type: Abstract

    The VA has employed ESSENCE for health monitoring since 2006 [1]. Epidemiologists at the Office of Public Health (OPH) monitor the VA population at the national level. The system is also intended for facility-level monitoring to cover 152 medical… read more
    … outpatient clinics (CBOC), and other facilities serving all fifty states, the District of Columbia, and U.S. … outpatient clinics (CBOC), and other facilities serving all 50 states, the District of Columbia and U.S. … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Syndromic Surveillance for Bicycle Related Injuries in Boston, 2007-2010

    Content Type: Abstract

    In May of 2001, Boston released a strategic transportation plan to improve bicycle access and safety. [1] According to the Boston Transportation Department, ridership has increased 122% between 2007 and 2009. [2] A collaborative public health and… read more
    … system receives information from ED visits from all 10 acute care hospitals in Boston every 24 hours. Data … among persons aged 18�24 years. Fifty- four percent of all BRI admissions were associated with fractures and … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Modifications to Spatial Scan Statistics for Estimated Probabilities at Fine-Resolution in Highly Skewed Spatial Distributions

    Content Type: Abstract

    Estimation of representative spatial probabilities and expected counts from baseline data can cause problems in applying spatial scan statistics when observed events are sparse in a large percentage of the spatial zones (e.g.,… read more
    … period, some of the sparse-data zones have no counts at all. If ignored, the zero-count spatial zones will result in … number of zero count zones is a significant fraction of all the zones. One alternative method for estimating … period, some of the sparse-data zones have no counts at all. If ignored, the zero-count spatial zones will result in …
  • Classification of Emergency Department Syndromic Data for Seasonal Influenza Surveillance

    Content Type: Abstract

    We evaluated several classifications of emergency department (ED) syndromic data to ascertain best syndrome classifications for ILI.
    … through 4/28/2007 and excluded one hospital that did not provide ED chief com- plaints. The weekly number of … including data from the diagnosis, where available, did not consistently improve the SNR. The correlation with … of the “CCFEVER” and “ANYFE- VER” categories, which did not lag behind RA. Us- ing an algorithm that switches …