202 search results - page 23 / 41 » Privacy-preservation for gradient descent methods |
IJCV
2006
14 years 11 months ago
2006
In this paper, we propose a new variational model to segment an object belonging to a given shape space using the active contour method, a geometric shape prior and the Mumford-Sha...
104
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COLT
2006
Springer
15 years 3 months ago
2006
Springer
In an online convex optimization problem a decision-maker makes a sequence of decisions, i.e., chooses a sequence of points in Euclidean space, from a fixed feasible set. After ea...
BMVC
2010
14 years 9 months ago
2010
Variational level set methods are formulated as energy minimisation problems, which are often solved by gradient-based optimisation methods, such as gradient descent. Unfortunatel...
ICPR
2004
IEEE
16 years 21 days ago
2004
IEEE
This paper deals with the matching of geometric objects including points, curves, surfaces, and subvolumes using implicit object representations in both linear and non-linear sett...
104
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IPMI
2007
Springer
16 years 13 days ago
2007
Springer
Abstract. We describe a new approach for estimating the posterior probability of tissue labels. Conventional likelihood models are combined with a curve length prior on boundaries,...