GRACE: A visual comparison framework for integrated spatial and non-spatial geriatric data.
We present the design of a novel framework for the visual integration, comparison, and exploration of correlations in spatial and non-spatial geriatric research data. These data are in general high-dimensional and span both the spatial, volumetric domain--through magnetic resonance imaging volumes--and the non-spatial domain, through variables such as age, gender, or walking speed. The visual analysis framework blends medical imaging, mathematical analysis and interactive visualization techniques, and includes the adaptation of Sparse Partial Least Squares and iterated Tikhonov Regularization algorithms to quantify potential neurologymobility connections. A linked-view design geared specifically at interactive visual comparison integrates spatial and abstract visual representations to enable the users to effectively generate and refine hypotheses in a large, multidimensional, and fragmented space. In addition to the domain analysis and design description, we demonstrate the usefulness of this approach on two case studies. Last, we report the lessons learned through the iterative design and evaluation of our approach, in particular those relevant to the design of comparative visualization of spatial and non-spatial data.
University of Pittsburgh.
Adrian
A
Maries
Nathan
N
Mays
Meganolson
M
Hunt
Kim F
KF
Wong
William
W
Layton
Robert
R
Boudreau
Caterina
C
Rosano
G Elisabeta
GE
Marai
D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D003196:Computer Graphics; D020000:Decision Support Systems, Clinical; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D005260:Female; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012984:Software; D018511:Systems Integration; D014584:User-Computer Interface