Results 31 to 40 of about 168,985 (282)

Statistical paleoclimate reconstructions via Markov random fields

open access: yes, 2015
Understanding centennial scale climate variability requires data sets that are accurate, long, continuous and of broad spatial coverage. Since instrumental measurements are generally only available after 1850, temperature fields must be reconstructed ...
Emile-Geay, Julien   +2 more
core   +1 more source

Markov Random Field Surface Reconstruction [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2010
A method for implicit surface reconstruction is proposed. The novelty in this paper is the adaptation of Markov Random Field regularization of a distance field. The Markov Random Field formulation allows us to integrate both knowledge about the type of surface we wish to reconstruct (the prior) and knowledge about data (the observation model) in an ...
Paulsen, Rasmus Reinhold   +2 more
openaire   +3 more sources

Collaborative filtering via sparse Markov random fields

open access: yes, 2016
Recommender systems play a central role in providing individualized access to information and services. This paper focuses on collaborative filtering, an approach that exploits the shared structure among mind-liked users and similar items. In particular,
Phung, Dinh   +2 more
core   +1 more source

Multiscale representations of Markov random fields [PDF]

open access: yes, 1992
Includes bibliographical references (p. 54-58).Supported by the Draper Laboratory IR&D Program. DL-H-418524 Supported by the Office of Naval Research. N00014-91-J-1004 Supported by the Army Research Office of Research.

core   +1 more source

High-Order Markov Random Fields and Their Applications in Cross-Language Speech Recognition

open access: yesCybernetics and Information Technologies, 2015
In this paper we study the cross-language speech emotion recognition using high-order Markov random fields, especially the application in Vietnamese speech emotion recognition.
Zhipeng Jiang, Chengwei Huang
doaj   +1 more source

Comparison of linear discriminant functions in image classification

open access: yesLietuvos Matematikos Rinkinys, 2010
In statistical image classification it is usually assumed that feature observations given labels are independently distributed. We have retracted this assumption by proposing stationary Gaussian random field (GRF) model for features observations ...
Lijana Stabingienė   +2 more
doaj   +1 more source

Gaussian mixture model and Markov random fields for hyperspectral image classification

open access: yesEuropean Journal of Remote Sensing, 2018
This paper presents a novel method for reliable and efficient spatial-spectral classification of hyperspectral data. This algorithm is based on the Bayesian labelling by combining the results of the Gaussian mixture model (GMM) with spatial-contextual ...
Hamid Ghanbari   +3 more
doaj   +1 more source

Generalisation of the Hammersley-Clifford Theorem on Bipartite Graphs [PDF]

open access: yes, 2015
The Hammersley-Clifford theorem states that if the support of a Markov random field has a safe symbol then it is a Gibbs state with some nearest neighbour interaction.
Chandgotia, Nishant
core  

Pattern theorems, ratio limit theorems and Gumbel maximal clusters for random fields [PDF]

open access: yes, 2007
We study occurrences of patterns on clusters of size n in random fields on Z^d. We prove that for a given pattern, there is a constant a>0 such that the probability that this pattern occurs at most an times on a cluster of size n is exponentially small ...
G. Grimmett   +14 more
core   +4 more sources

Stable Imitation of Multigait and Bipedal Motions for Quadrupedal Robots Over Uneven Terrains

open access: yesAdvanced Robotics Research, EarlyView.
How are quadrupedal robots empowered to execute complex navigation tasks, including multigait and bipedal motions? Challenges in stability and real‐world adaptation persist, especially with uneven terrains and disturbances. This article presents an imitation learning framework that enhances adaptability and robustness by incorporating long short‐term ...
Erdong Xiao   +3 more
wiley   +1 more source

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