Results 1 to 10 of about 2,248,301 (258)

On cospectrality of gain graphs

open access: yesSpecial Matrices, 2022
We define GG-cospectrality of two GG-gain graphs (Γ,ψ)\left(\Gamma ,\psi ) and (Γ′,ψ′)\left(\Gamma ^{\prime} ,\psi ^{\prime} ), proving that it is a switching isomorphism invariant.
Cavaleri Matteo, Donno Alfredo
doaj   +2 more sources

Cross-residual knowledge graph learning for robust multi-trait gene–trait prioritization in rice [PDF]

open access: yesFrontiers in Plant Science
IntroductionPrioritizing genes associated with agronomic traits remains challenging because relevant evidence is distributed across heterogeneous biological resources and curated gene-trait associations are incomplete.MethodsWe formulate multi-trait crop
Jingchao Wang   +8 more
doaj   +2 more sources

Correlation-Induced Accessibility Bridges in Biomedical Networks: A Proof-of-Concept Relational Graph Model [PDF]

open access: yesEntropy
Complex diseases often involve distributed interactions among biological regions, physiological systems, imaging phenotypes, and clinical variables that are not fully captured by anatomical proximity, isolated biomarkers, or conventional feature-based ...
Roxana Irina Iancu   +11 more
doaj   +2 more sources

Multi-Duplicated Characterization of Graph Structures Using Information Gain Ratio for Graph Neural Networks

open access: yesIEEE Access, 2023
Various graph neural networks (GNNs) have been proposed to solve node classification tasks in machine learning for graph data. GNNs use the structural information of graph data by aggregating the feature vectors of neighboring nodes.
Yuga Oishi, Ken Kaneiwa
doaj   +1 more source

Burnside Chromatic Polynomials of Group-Invariant Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2023
We introduce the Burnside chromatic polynomial of a graph that is invariant under a group action. This is a generalization of the Q-chromatic function Zaslavsky introduced for gain graphs.
White Jacob A.
doaj   +1 more source

A dual‐modal graph attention interaction network for person Re‐identification

open access: yesIET Computer Vision, 2023
Person Re‐identification (Re‐ID) is a task of matching target pedestrians under cross‐camera surveillance. Learning discriminative feature representations is the main issue for person Re‐ID.
Wen Wang, Gaoyun An, Qiuqi Ruan
doaj   +1 more source

On the Fractionalization of the Shift Operator on Graphs

open access: yesIEEE Access, 2022
The theory of graph signal processing has been established with the purpose of generalizing tools from classical digital signal processing to the cases where the signal domain can be modeled by an arbitrary graph.
Guilherme B. Ribeiro   +2 more
doaj   +1 more source

Domain Entity Extraction Method Based on Graph Sorting and Maximal Information Gain [PDF]

open access: yesJisuanji gongcheng, 2022
Domain knowledge graphs play an important role in various industries, and the acquisition of the domain entity is an important basis for their construction.However, existing approaches frequently rely on human work such as data annotation and the ...
ZHANG Xiaoming, ZHENG Lixin, WANG Huiyong
doaj   +1 more source

On two Laplacian matrices for skew gain graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2021
Gain graphs are graphs where the edges are given some orientation and labeled with the elements (called gains) from a group so that gains are inverted when we reverse the direction of the edges.
Roshni T. Roy   +2 more
doaj   +1 more source

Balancedness and the Least Laplacian Eigenvalue of Some Complex Unit Gain Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2020
Let 𝕋4 = {±1, ±i} be the subgroup of 4-th roots of unity inside 𝕋, the multiplicative group of complex units. A complex unit gain graph Φ is a simple graph Γ = (V (Γ) = {v1, . . .
Belardo Francesco   +2 more
doaj   +1 more source

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