Zobrazeno 1 - 10
of 918
pro vyhledávání: '"Kahng, B."'
Numerical simulation is a predominant tool for studying the dynamics in complex systems, but large-scale simulations are often intractable due to computational limitations. Here, we introduce the Neural Graph Simulator (NGS) for simulating time-invar
Externí odkaz:
http://arxiv.org/abs/2411.09120
Autor:
Lee, Yongsun, Choi, Hoyun, Pagnier, Laurent, Kim, Cook Hyun, Lee, Jongshin, Jhun, Bukyoung, Kim, Heetae, Kurths, Juergen, Kahng, B.
Publikováno v:
Chaos, Solitons and Fractals 186 (2024) 115293
Effective frequency control in power grids has become increasingly important with the increasing demand for renewable energy sources. Here, we propose a novel strategy for resolving this challenge using graph convolutional proximal policy optimizatio
Externí odkaz:
http://arxiv.org/abs/2407.15165
Autor:
Park, Jinha, Kahng, B.
Motivated by the decentralized power grid, we consider a synchronization transition (ST) of the Kuramoto model (KM) with a mixture of first- and second-order type oscillators with fractions $p$ and $1-p$, respectively. Discontinuous ST with forward-b
Externí odkaz:
http://arxiv.org/abs/2407.07312
Neural networks have proven to be efficient surrogate models for tackling partial differential equations (PDEs). However, their applicability is often confined to specific PDEs under certain constraints, in contrast to classical PDE solvers that rely
Externí odkaz:
http://arxiv.org/abs/2310.00618
A hybrid percolation transition (HPT) exhibits both discontinuity of the order parameter and critical behavior at the transition point. Such dynamic transitions can occur in two ways: by cluster pruning with suppression of loop formation of cut links
Externí odkaz:
http://arxiv.org/abs/2307.03584
Publikováno v:
Chaos, Solitons & Fractals 173, 113645 (2023)
In complex networks, many elements interact with each other in different ways. A hypergraph is a network in which group interactions occur among more than two elements. In this study, first, we propose a method to identify influential subgroups in hy
Externí odkaz:
http://arxiv.org/abs/2301.06712
Publikováno v:
chaos 33, 013115 (2023)
Cascading failures (CFs) in electrical power grids propagate nonlocally; After a local disturbance, the second failure may be distant. To study the avalanche dynamics and mitigation strategy of nonlocal CFs, numerical simulation is necessary; however
Externí odkaz:
http://arxiv.org/abs/2208.00133
Autor:
Park, Jinha, Kahng, B.
Publikováno v:
In Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena September 2024 186
Phase transitions in dissipative quantum systems have been investigated using various analytical approaches, particularly in the mean-field (MF) limit. However, analytical results often depend on specific methodologies. For instance, Keldysh formalis
Externí odkaz:
http://arxiv.org/abs/2110.09435
Recently, there has been significant advancement in the machine learning (ML) approach and its application to diverse systems ranging from complex to quantum systems. As one of such systems, a coupled-oscillators system exhibits intriguing collective
Externí odkaz:
http://arxiv.org/abs/2109.08918