Browsing by Author "Mark, Roger Greenwood"

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    • Artificial Arterial Blood Pressure Artifact Models and an Evaluation of a Robust Blood Pressure and Heart Rate Estimator 

      Li, Qiao; Mark, Roger Greenwood; Clifford, Gari D (BioMed Central, 2009)
      Background: Within the intensive care unit (ICU), arterial blood pressure (ABP) is typically recorded at different (and sometimes uneven) sampling frequencies, and from different sensors, and is often corrupted by different ...

    • Automated De-Identification of Free-Text Medical Records 

      Neamatullah, Ishna; Douglass, Margaret M; Lehman, Li-wei H; Reisner, Andrew Tomas; Villarroel, Mauricio; Long, William J; Szolovits, Peter; Moody, George B; Mark, Roger Greenwood; Clifford, Gari D (BioMed Central, 2008)
      Background: Text-based patient medical records are a vital resource in medical research. In order to preserve patient confidentiality, however, the U.S. Health Insurance Portability and Accountability Act (HIPAA) requires ...

    • Discovering Shared Dynamics in Physiological Signals: Application to Patient Monitoring in ICU 

      Lehman, Li-wei H.; Nemati, Shamim; Adams, Ryan Prescott; Mark, Roger Greenwood (Institute of Electrical and Electronics Engineers, 2012)
      Modern clinical databases include time series of vital signs, which are often recorded continuously during a hospital stay. Over several days, these recordings may yield many thousands of samples. In this work, we explore ...