Title :
Visualization blackboard-visualizing optimization by multiple processors
Author :
Herman, Gabor T. ; Odhner, Dewey
Author_Institution :
Pennsylvania Univ., Philadelphia, PA, USA
Abstract :
Classification problems that involve finding a vector alpha whose direction is in some sense optimal are considered. To overcome the relative slowness of general-purpose approaches, multiple processors are used. To understand the rather complex behavior of the resulting algorithms, a visualization tool that shows (for the 3-D case) the function, the locations of its local and global minima, and the positions of the processors as they search through the space has been developed. The tool is applicable to any problem domain and any optimization algorithm. It is illustrated on an algorithm for a medical problem.<>
Keywords :
computer graphics; 3-D case; classification problems; global minima; local minima; medical problem; multiple processors; optimization; visualization blackboard; Breast; Computer graphics; Humans; Minimization methods; Needles; Optimization methods; Size control; Tail; Visualization;
Journal_Title :
Computer Graphics and Applications, IEEE