Results 31 to 40 of about 1,307,438 (325)
Research on the construction and implementation of power grid fault handling knowledge graphs
Energy Reports, 2023 Power grid fault disposal has important guiding significance for the efficient and orderly emergency work of power grid accidents. The knowledge graph technology is used to extract, express and manage the fault disposal information.
Na Xiao +5 more
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Theoretical Computer Science, 2008 AbstractIn a graph, a vertex is simplicial if its neighborhood is a clique. For an integer k≥1, a graph G=(VG,EG) is the k-simplicial power of a graph H=(VH,EH) (H a root graph of G) if VG is the set of all simplicial vertices of H, and for all distinct vertices x and y in VG, xy∈EG if and only if the distance in H between x and y is at most k.
Andreas Brandstädt, Van Bang Le
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Discrete Mathematics, 2009 AbstractFor a graph G=(V,E), a non-empty set S⊆V is a defensive alliance if for every vertex v in S, v has at most one more neighbor in V−S than it has in S, and S is an offensive alliance if for every v∈V−S that has a neighbor in S, v has more neighbors in S than in V−S. A powerful alliance is both defensive and offensive.
Brigham, Robert C. +3 more
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Real Quadratic-Form-Based Graph Pooling for Graph Neural Networks
Machine Learning and Knowledge Extraction, 2022 Graph neural networks (GNNs) have developed rapidly in recent years because they can work over non-Euclidean data and possess promising prediction power in many real-word applications.
Youfa Liu, Guo Chen
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Note On The Game Colouring Number Of Powers Of Graphs
Discussiones Mathematicae Graph Theory, 2016 We generalize the methods of Esperet and Zhu [6] providing an upper bound for the game colouring number of squares of graphs to obtain upper bounds for the game colouring number of m-th powers of graphs, m ≥ 3, which rely on the maximum degree and the ...
Andres Stephan Dominique, Theuser Andrea
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On the Structure of the Power Graph and the Enhanced Power Graph of a Group
The Electronic Journal of Combinatorics, 2017 Let $G$ be a group. The power graph of $G$ is a graph with the vertex set $G$, having an edge between two elements whenever one is a power of the other. We characterize nilpotent groups whose power graphs have finite independence number. For a bounded exponent group, we prove its power graph is a perfect graph and we determine its clique ...
Ghodratollah Aalipour +4 more
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On the Powers of Signed Graphs [PDF]
, 2020 A signed graph is an ordered pair $ =(G, ),$ where $G=(V,E)$ is the underlying graph of $ $ with a signature function $ :E\rightarrow \{1,-1\}$. In this article, we define $n^{th}$ power of a signed graph and discuss some properties of these powers of signed graphs.
Germina K A, Shahul Hameed K, Shijin T V
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SHACL-Based Validation Method of Knowledge Graph for Power System Model
Zhongguo dianli, 2022 With the expansion of the power grid and the high penetration of distributed energy resources, the power system analysis and decision-making have put forward higher requirements for comprehensive and accurate power grid models.
Xiaolu LI +5 more
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On the difference graph of power graphs of finite groups
Quaestiones Mathematicae, 2023 2 ...
Kumar, Jitender +2 more
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Frequency and voltage partitioning in presence of renewable energy resources for power system (example: North Chile power network) [PDF]
, 2016 This paper investigates techniques for frequency and voltage partitioning of power network based on the graph-theory. These methods divide the power system into distinguished regions to avoid the spread of disturbances and to minimize the interaction ...
Al-Emadi, N. A. +3 more
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