Results 41 to 50 of about 449,987 (313)
Water Resources Management, 2022 AbstractThe resilience assessment is crucial for many infrastructures, including water supply and distribution networks. In particular, the identification of the ‘critical’ components (nodes or pipes) whose failure may negatively affect network performances and system resilience is a key issue, with a direct relevance for decision-makers involved in ...
Pagano A., Giordano R., Portoghese I.
openaire +3 more sources
Skew-products of higher-rank graphs and crossed products by semigroups [PDF]
, 2013 We consider a free action of an Ore semigroup on a higher-rank graph, and the induced action by endomorphisms of the $C^*$-algebra of the graph. We show that the crossed product by this action is stably isomorphic to the $C^*$-algebra of a quotient graph.
Maloney, Ben, Pask, David, Raeburn, Iain
core +3 more sources
Real rank and topological dimension of higher rank graph algebras [PDF]
, 2015 We study dimension theory for the $C^*$-algebras of row-finite $k$-graphs with no sources. We establish that strong aperiodicity - the higher-rank analogue of condition (K) - for a $k$-graph is necessary and sufficient for the associated $C^*$-algebra to
D. Pask, Adam Sierakowski, A. Sims
semanticscholar +1 more source
Frontiers in Neuroscience, 2021 Objective: Graph theory applications are commonly used in connectomics research to better understand connectivity architecture and characterize its role in cognition, behavior and disease conditions. One of the numerous open questions in the field is how
Sahin Hanalioglu +9 more
doaj +1 more source
Perfect Matchings, Rank of Connection Tensors and Graph Homomorphisms [PDF]
ACM-SIAM Symposium on Discrete Algorithms, 2019 We develop a theory of graph algebras over general fields. This is modelled after the theory developed by Freedman et al. (2007, J. Amer. Math. Soc.20 37–51) for connection matrices, in the study of graph homomorphism functions over real edge weight ...
Jin-Yi Cai, A. Govorov
semanticscholar +1 more source
A new approach for ranking decision-making units in data envelopment analysis by using communication game theory [PDF]
Iranian Journal of Numerical Analysis and OptimizationRanking decision making units (DMUs) is an important topic in data en-velopment analysis (DEA). When efficient DMUs or inefficient DMUs have the same efficiency score, the traditional DEA model usually fails to rank all DMUs.
M. Amiri, A. Ashrafi
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Shapley ratings in brain networks
Frontiers in Neuroinformatics, 2007 Recent applications of network theory to brain networks as well as the expanding empirical databases of brain architecture spawn an interest in novel techniques for analyzing connectivity patterns in the brain.
Rolf Kötter +7 more
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Three topological features of regulatory networks control life-essential and specialized subsystems
Scientific Reports, 2021 Gene regulatory networks (GRNs) play key roles in development, phenotype plasticity, and evolution. Although graph theory has been used to explore GRNs, associations amongst topological features, transcription factors (TFs), and systems essentiality are ...
Ivan Rodrigo Wolf +2 more
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Determination of the Shortest Hamiltonian Paths in an Arbitrary Graph of Distributed Databases
Российский технологический журнал, 2019 A method has been developed for finding the shortest Hamiltonian path in an arbitrary graph based on the rank approach, which provides high efficiency and a significant reduction in the error in solving the problem of organizing the process of managing ...
E. G. Andrianova +2 more
doaj +1 more source
Journal of Marine Science and Engineering, 2023 We aimed to improve the performance of ship detection methods in synthetic aperture radar (SAR) images by utilizing machine learning (ML) and artificial intelligence (AI) techniques.
Muhammad Yasir +5 more
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