510 search results - page 23 / 102 » Gradient Estimation Revitalized |
116
click to vote
ECML
2007
Springer
15 years 8 months ago
2007
Springer
We present Policy Gradient Actor-Critic (PGAC), a new model-free Reinforcement Learning (RL) method for creating limited-memory stochastic policies for Partially Observable Markov ...
187
Voted
BILDMED
2011
14 years 6 months ago
2011
Abstract. In the field of image-guided liver surgery (IGLS), the initial registration of the intra-operative organ surface with preoperative tomographic image data is performed on...
122
Voted
ICML
2009
IEEE
16 years 3 months ago
2009
IEEE
We consider the problem of estimating the policy gradient in Partially Observable Markov Decision Processes (POMDPs) with a special class of policies that are based on Predictive ...
126
Voted
IPMI
2005
Springer
16 years 3 months ago
2005
Springer
Abstract. Active Shape Models are a popular method for segmenting three-dimensional medical images. To obtain the required landmark correspondences, various automatic approaches ha...
113
Voted
IPPS
2006
IEEE
15 years 8 months ago
2006
IEEE
A new class of parallel normalized preconditioned conjugate gradient type methods in conjunction with normalized approximate inverses algorithms, based on normalized approximate f...