Results 21 to 30 of about 1,311,142 (167)

Multipass Active Contours for an Adaptive Contour Map

open access: yesSensors, 2013
Isocontour mapping is efficient for extracting meaningful information from a biomedical image in a topographic analysis. Isocontour extraction from real world medical images is difficult due to noise and other factors.
Kwang Nam Choi   +4 more
doaj   +1 more source

Land Surface Water Mapping Using Multi-Scale Level Sets and a Visual Saliency Model from SAR Images

open access: yesISPRS International Journal of Geo-Information, 2016
Land surface water mapping is one of the most basic classification tasks to distinguish water bodies from dry land surfaces. In this paper, a water mapping method was proposed based on multi-scale level sets and a visual saliency model (MLSVS), to ...
Chuan Xu, Haigang Sui, Feng Xu
doaj   +1 more source

Review of Classification Methods on Unbalanced Data Sets

open access: yesIEEE Access, 2021
This paper studies the classification of unbalanced data sets. First, this kind of data sets is briefly introduced, and then the classification methods of unbalanced data sets are analyzed in detail from different perspectives such as data sampling ...
Le Wang   +4 more
doaj   +1 more source

Note on the Concept of 𝜶 – Level Sets of Neutrosophic Set [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
Neutrosophic set is a unique concept endowed with unconnected degree of indeterminacy excluded in the non-classical sets it generalizes. This paper communicates shortly on the notions of 𝛼 - lower level and 𝛼 - upper level sets of a neutrosophic set ...
Johnson Awolola
doaj   +1 more source

Characteristic Picture Fuzzy Sets and Level Subsets in UP (BCC)-Algebras

open access: yesInternational Journal of Analysis and Applications, 2023
The eight new concepts of picture fuzzy sets in UP (BCC)-algebras are introduced by Kankaew et al. in 2022. This idea is extended to the lower and upper level subsets of picture fuzzy sets in UP (BCC)-algebras.
Pimwaree Kankaew   +5 more
doaj   +1 more source

Confidence sets for a level set in linear regression [PDF]

open access: yesStatistics in Medicine
Regression modeling is the workhorse of statistics and there is a vast literature on estimation of the regression function. It has been realized in recent years that in regression analysis the ultimate aim may be the estimation of a level set of the regression function, ie, the set of covariate values for which the regression function exceeds a ...
Fang Wan, Wei Liu, Frank Bretz
openaire   +4 more sources

Confidence regions for level sets

open access: yesJournal of Multivariate Analysis, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mammen, Enno, Polonik, Wolfgang
openaire   +3 more sources

A novel fuzzy energy based level set method for medical image segmentation

open access: yesCogent Engineering, 2018
Segmentation is a very important step in the field of image processing. Noise and intensity inhomogeneity make challenging the segmentation of images, especially for medical images. Fuzzy C-means (FCM) clustering is one of the most widely used methods in
Mahipal Singh Choudhry, Rajiv Kapoor
doaj   +1 more source

A Hesitant Soft Fuzzy Rough Set and its Applications

open access: yesIEEE Access, 2019
The difficulty of establishing a common membership degree is not because there is a margin of error or some possibility distribution values, but because there is a set of possible values.
Ting Xie, Zengtai Gong
doaj   +1 more source

Fenchel Problem of Level Sets [PDF]

open access: yesJournal of Optimization Theory and Applications, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Home - About - Disclaimer - Privacy