Results 41 to 50 of about 666,730 (159)

A Markov Random Field and Adaptive Regularization Embedded Level Set Segmentation Model Solving by Graph Cuts

open access: yesJournal of Electrical and Computer Engineering, 2019
This paper presents a novel Markov random field (MRF) and adaptive regularization embedded level set model for robust image segmentation and uses graph cuts optimization to numerically solve it.
Dengwei Wang
doaj   +1 more source

GrSrNMF: dynamic community detection with graph and symmetry bi-regularized non-negative matrix factorization

open access: yesScientific Reports
Community detection in dynamic networks has become an interesting and popular research direction in recent years, widely used in electronic commerce, social media, and other fields.
Wei Yu   +6 more
doaj   +1 more source

Regular $K_3$-regular graphs

open access: yesCoRR
We study graphs that are simultaneously regular with respect to the ordinary vertex degree and regular with respect to the triangle degree, that is, the number of triangles containing a given vertex. We call such graphs regular $K_3$-regular. We investigate the (non-)existence of regular $K_3$-regular graphs with prescribed parameters $(r_2,r_3 ...
Artem Hak   +3 more
openaire   +2 more sources

A sequential regularization method for time-dependent incompressible Navier--Stokes equations [PDF]

open access: yes, 1997
The objective of the paper is to present a method, called the sequential regularization method (SRM), for the nonstationary incompressible Navier--Stokes equations from the viewpoint of regularization of differential-algebraic equations (DAEs), and to ...
Lin, Ping
core   +1 more source

Double regularized matrix factorization for image classification and clustering

open access: yesEURASIP Journal on Image and Video Processing, 2018
Feature selection, which aims to select an optimal feature subset to avoid the “curse of dimensionality,” is an important research topic in many real-world applications.
Wei Zhou   +4 more
doaj   +1 more source

Bearing Faults Diagnosis Method Based on Stacked Auto-Encoder With Graph Regularization for Wind Turbines

open access: yes发电技术
ObjectivesIn order to solve the problems of low efficiency of fault feature extraction, inaccurate feature representation, and difficulty in adapting existing methods to complex signal requirements in wind turbine bearing fault diagnosis, a fault ...
LIU Zhan   +3 more
doaj   +1 more source

Anticancer Drug Response Prediction in Cell Lines Using Weighted Graph Regularized Matrix Factorization

open access: yesMolecular Therapy: Nucleic Acids, 2019
Precision medicine has become a novel and rising concept, which depends much on the identification of individual genomic signatures for different patients.
Na-Na Guan   +5 more
doaj   +1 more source

GDNConv: A Novel Graph Deformation Network for Robust Representation Learning on Noisy Graph Structures

open access: yesIEEE Access
Graph Neural Networks have emerged as powerful tools for analyzing graph-structured data. However, their performance often varies across datasets due to challenges such as noisy edges, sparse connectivity, and over-smoothing in deep layers.
Vinay Santhosh Chitla   +3 more
doaj   +1 more source

Semantic Consistency Cross-Modal Retrieval With Semi-Supervised Graph Regularization

open access: yesIEEE Access, 2020
Most of the existing cross-modal retrieval methods make use of labeled data to learn projection matrices for different modal data. These methods usually learn the original semantic space to bridge the heterogeneous gap, ignoring the rich semantic ...
Gongwen Xu, Xiaomei Li, Zhijun Zhang
doaj   +1 more source

Distance-Regular Graphs

open access: yesThe Electronic Journal of Combinatorics, 2016
This is a survey of distance-regular graphs. We present an introduction to distance-regular graphs for the reader who is unfamiliar with the subject, and then give an overview of some developments in the area of distance-regular graphs since the monograph 'BCN' [Brouwer, A.E., Cohen, A.M., Neumaier, A., Distance-Regular Graphs, Springer-Verlag, Berlin,
Edwin R. van Dam   +2 more
openaire   +4 more sources

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