Browsing Theses by Subject "gradient"
Now showing items 1-3 of 3
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The determination of structured Hessian matrices via automatic differentiation
(University of Waterloo, 2014-09-23)In using automatic differentiation (AD) for Hessian computation, efficiency can be achieved by exploiting the sparsity existing in the derivative matrix. However, in the case where the Hessian is dense, this cannot be done ... -
Role of Category Structure in Human Information Processing
(University of Waterloo, 2007-01-19)This investigation will use this ability in a different way. Studies have shown that a category can create a grade structure of prototypical items. We will take a graded structure generated by a category, and see if we can ... -
Vision-Based Observation Models for Lower Limb 3D Tracking with a Moving Platform
(University of Waterloo, 2011-08-23)Tracking and understanding human gait is an important step towards improving elderly mobility and safety. This thesis presents a vision-based tracking system that estimates the 3D pose of a wheeled walker user's lower ...