441 search results - page 33 / 89 » Query expansion using random walk models |
CVPR
2007
IEEE
14 years 12 months ago
2007
IEEE
This paper presents a novel spatio-temporal Markov random field (MRF) for video denoising. Two main issues are addressed in this paper, namely, the estimation of noise model and t...
ICPR
2008
IEEE
14 years 4 months ago
2008
IEEE
Automatic image annotation is a promising way to achieve more effective image management and retrieval by using keywords. However, system performances of the existing state-of-the...
TIT
2008
13 years 9 months ago
2008
An extractor is a function that is used to extract randomness. Given an imperfect random source X and a uniform seed Y , the output (X; Y ) is close to uniform. We study properties...
INFOCOM
2005
IEEE
14 years 3 months ago
2005
IEEE
— We define “random trip", a generic mobility model for independent mobiles that contains as special cases: the random waypoint on convex or non convex domains, random wa...
ICML
2003
IEEE
14 years 10 months ago
2003
IEEE
An approach to semi-supervised learning is proposed that is based on a Gaussian random field model. Labeled and unlabeled data are represented as vertices in a weighted graph, wit...