Projects
Currently, I’m working on applying probabilistic learning techniques to improve automatic tuning and boundary detection  of lutetium oxyorthosilicate (LSO) scintillation crystal arrays in the High Resolution Research Tomograph (HRRT) brain PET scanner.  Manufacturer supplied tuning software performs poorly in situations where there is low signal-to-noise characteristics or when there is significant “cross-talk” from neighboring scintillators in the array.
 
Other Interests
I am interested in applying AI and machine learning techniques to medical imaging data, modeling brain circuitry (both nuclei and interconnections between nuclei) abnormalities in a variety of neurological disorders.  Further interests include biomedical informatic methods for enabling large-scale distributed data federations.  For the past 6 years I’ve been working on tools to enable the documentation and  federation of distributed fMRI data across multi-site collaboratories.
David Keator
Position: Graduate Student
Area: AI/ML
Advisors: Padhraic Smyth
                  Alex Iher
Office: Bren Hall 4051
             Irvine Hall 163
Office Tel: 949-824-7870
Office Fax: 949-824-7873
Email: dbkeator@uci.edu
CV: CV.pdf
 
 
 
 
 
My favorite links
  1. •www.ics.uci.edu
  2. •www.bic.uci.edu
  3. •www.nbirn.net
  4. •www.brainimage.net
 
 
Photos
 
 
 
 
Alaska 2008
 
 
 
Hawaii 2007
Glacier National Park
Chianti
 
Selected Publications
  1. • A National Human Neuroimaging Collaboratory Enabled By The Biomedical Informatics Research Network (BIRN). Keator, D.; Grethe, J.S.; Marcus, D.; Ozyurt, B.; et. al.  IEEE Transactions on Information Technology in Biomedicine. 2008 Mar;12(2):162-72.
  2. • High Resolution PET Listmode Motion Correction Using 3D Motion Data. Lee K.; Hong I; Potkin S.; Burbar Z.;Keator, D.. Abstract and poster presentation at Joint Molecular Imaging Conference, 2007.
  3. • A General XML Schema and Associated SPM Toolbox for Storage and Retrieval of Neuro-Imaging Results and Anatomical Labels. Keator, D.; Gadde, S; Grethe, J ; Taylor, D; FIRST BIRN; Potkin, S.  Neuroinformatics, 2006; 4(2):199-212.
  4. • A General and Extensible Multi-Site Database and XML based Informatics System for the Storage, Retrieval, Transport, and Maintenance of Human Brain Imaging and Clinical Data. Keator D; Ozyurt BI; Wei D; Gadde S; Potkin SG; Brown G; MBIRN; FBIRN; Grethe J. Abstract and poster (253 TH-AM) presentation at Organization of Human Brain Mapping, 2006.