Results 71 to 80 of about 8,152,507 (265)
IEEE Transactions on Power Systems, 2022 Online transient analysis plays an increasingly important role in dynamic power grids as the renewable generation continues growing. Traditional numerical methods for transient analysis not only are computationally intensive but also require precise ...
Tianqiao Zhao, M. Yue, Jianhui Wang
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Unfolding WMMSE Using Graph Neural Networks for Efficient Power Allocation [PDF]
IEEE Transactions on Wireless Communications, 2020 We study the problem of optimal power allocation in a single-hop ad hoc wireless network. In solving this problem, we depart from classical purely model-based approaches and propose a hybrid method that retains key modeling elements in conjunction with ...
Arindam Chowdhury +4 more
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Attack Graph Model for Cyber-Physical Power Systems Using Hybrid Deep Learning
IEEE Power & Energy Society General MeetingElectrical power grids are vulnerable to cyber attacks, as seen in Ukraine in 2015 and 2016. However, existing attack detection methods are limited. Most of them are based on power system measurement anomalies that occur when an attack is successfully ...
Alfan Presekal +3 more
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The Power Graph of a Dihedral Group
EIGEN MATHEMATICS JOURNAL, 2022 Graph theory is one of the topics in mathematics that is quite interesting to study because it is applicable and can be combined with other mathematical topics such as group theory.
Evi Yunartika Asmarani +4 more
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Automorphism group of certain power graphs of finite groups
Electronic Journal of Graph Theory and Applications, 2017 The power graph $\mathcal{P}(G)$ of a group $G$ is the graphwith group elements as vertex set and two elements areadjacent if one is a power of the other. The aim of this paper is to compute the automorphism group of the power graph of several well-known
Ali Reza Ashrafi +2 more
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Graph Sampling for Covariance Estimation
, 2017 In this paper the focus is on subsampling as well as reconstructing the second-order statistics of signals residing on nodes of arbitrary undirected graphs.
Chepuri, Sundeep Prabhakar, Leus, Geert
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Forbidden subgraphs of TI-power graphs of finite groups
Open MathematicsGiven a finite group GG with identity ee, the TI-power graph (trivial intersection power graph) defined on GG, denoted by Γ(G)\Gamma \left(G), is an undirected graph with vertex set GG where distinct vertices aa and bb are adjacent if ⟨a⟩∩⟨b⟩={e}\langle ...
Li Huani, Chen Jin, Lin Shixun
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Forbidden subgraphs in reduced power graphs of finite groups
AIMS Mathematics, 2021 Let G be a finite group. The reduced power graph of G is the undirected graph whose vertex set consists of all elements of G, and two distinct vertices x and y are adjacent if either ⟨x⟩⊂⟨y⟩ or ⟨y⟩⊂⟨x⟩. In this paper, we show that the reduced power graph
Huani Li , Ruiqin Fu, Xuanlong Ma
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The extreme vertices of the power graph of a group
Heliyon, 2022 For a fixed finite group G, the power graph of G was defined to be the simple graph Γ(G) whose vertex set V(Γ(G))=G, and edge set E(Γ(G))={xy: either x=yn or y=xn for some integer n}.
Omar A. AbuGhneim, Mohammed Abudayah
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Power System Network Topology Identification Based on Knowledge Graph and Graph Neural Network
Frontiers in Energy Research, 2021 The automatic identification of the topology of power networks is important for the data-driven and situation-aware operation of power grids. Traditional methods of topology identification lack a data-tolerant mechanism, and the accuracy of their ...
Changgang Wang, Jun An, Gang Mu
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