Results 261 to 270 of about 446,074 (292)

Hyperspectral Image Destriping and Denoising Using Stripe and Spectral Low-Rank Matrix Recovery and Graph Laplacian Regularization

Chinese Control and Decision Conference, 2022
Hyperspectral images are often degraded by various types of noise. It is important to choose appropriate image priors for the underdetermined imaging denoising problems.
Xin Chen, Fang Yang
semanticscholar   +1 more source

Graph-Theory-Based Molecular Fragmentation for Efficient and Accurate Potential Surface Calculations in Multiple Dimensions.

Journal of Chemical Theory and Computation, 2021
We present a multitopology molecular fragmentation approach, based on graph theory, to calculate multidimensional potential energy surfaces in agreement with post-Hartree-Fock levels of theory but at the density functional theory cost.
Anup Kumar, Nicole DeGregorio, S. Iyengar   +2 more
semanticscholar   +1 more source

On the Asymptotic Nonnegative Rank of Matrices and its Applications in Information Theory

International Symposium on Information Theory, 2023
In this paper, we study the asymptotic nonnegative rank of matrices, which characterizes the asymptotic growth of the nonnegative rank of fixed nonnegative matrices under the Kronecker product.
Yeow Meng Chee, Quoc-Tung Le, Hoang Ta
semanticscholar   +1 more source

A directed link prediction method using graph convolutional network based on social ranking theory

Intelligent Data Analysis, 2021
Graph convolutional networks (GCN) have recently emerged as powerful node embedding methods in network analysis tasks. Particularly, GCNs have been successfully leveraged to tackle the challenging link prediction problem, aiming at predicting missing links that exist yet were not found.
Shuxin Liu, Hongchang Chen, Yulong Pei, Zheng Wu, Jianpeng Zhang, Ruiyang Huang   +5 more
openaire   +2 more sources

Graph Theory for Dimensionality Reduction: A Case Study to Prognosticate Parkinson's

IEEE Annual Information Technology, Electronics and Mobile Communication Conference, 2020
In the present world, the commotion centering Big Data is somewhat obscuring the craft of mining information from smaller samples. Populations with limited examples but huge dimensionality are a common phenomenon, otherwise known as the curse of ...
Shithi Maitra, Tonmoy Hossain, Khan Md Hasib, Fairuz Shadmani Shishir   +3 more
semanticscholar   +1 more source

Graph theory applications to continuity and ranking in geologic models

Computers & Geosciences, 1999
Abstract Continuity of permeable and impermeable units strongly affects the flow simulation response in geologic media. Important factors include the size of permeable and impermeable bodies, their internal geometries, and whether they connect to injection and production wells at different stages of reservoir development.
J. F. Schuette, L. M. Hirsch
openaire   +2 more sources

Application of the graph theory and matrix methods to contractor ranking

International Journal of Project Management, 2009
Abstract The most important element in construction procurement is the contractor selection, which can result from contractor’s ranking. Contractor prequalification is essential in most construction projects, and the process has been performed by many different methods in practice.
Azita Saeedi, Maryam Darvish, Mehrdad Yasaei   +2 more
openaire   +2 more sources

Reducing unnecessary handovers and improving ranking abnormality based on multi‐attribute decision making graph theory and matrix approach with Euclidean distance in heterogeneous wireless networks

Concurrency and Computation: Practice and Experience, 2023
SummaryNew mobile devices offer multiple network interfaces to allow the users to connect to the best available network. The heterogeneous networks can provide better internet connectivity to the users by means of vertical handover. The handover must be triggered at a suitable point of time to avoid mobility issues such as unnecessary handovers and ...
Gaganpreet Kaur, Raman Kumar Goyal, Rajesh Mehta   +2 more
openaire   +1 more source

Graph theory application and web page ranking for website link structure improvement

Behaviour & Information Technology, 2009
Since the web is always developing, and users' needs are constantly changing, organisations in recent decades have increasingly focused on developing information and communication technologies (ICTs). To introduce new e-services to their customers, they have largely invested in web development and promotional activities.
Babak Abedin, Babak Sohrabi
openaire   +2 more sources

Fast DCT+: A Family of Fast Transforms Based on Rank-One Updates of the Path Graph

arXiv.org
This paper develops fast graph Fourier transform (GFT) algorithms with O(n log n) runtime complexity for rank-one updates of the path graph. We first show that several commonly-used audio and video coding transforms belong to this class of GFTs, which we
Samuel Fern'andez-Menduina, Eduardo Pavez, Antonio Ortega   +2 more
semanticscholar   +1 more source