human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "a framework for dynamic stability analysis of power systems with volatile wind power"):
  Abstract: We propose a framework employing stochastic differential equations to facilitate the long-term stability analysis of power grids with intermittent wind power generations. This framework takes into account the discrete dynamics, which play a critical role in the long-term stability analysis, incorporates the model of wind speed with different probability distributions, and also develops an approximation methodology [by a deterministic hybrid model (DHM)] for the stochastic hybrid model (SHM) to reduce the computational burden brought about by the uncertainty of wind power. The theoretical and numerical studies show that a DHM can provide an accurate trajectory approximation and stability assessments for the SHM under mild conditions. In addition, we discuss the critical cases that the DHM fails and discover that these cases are caused by a violation of the proposed sufficient conditions. Such discussion complements the proposed framework and methodology and also reaffirms the importance of the SHM when the system operates close to its stability limit.

Includes members:
  Member "long term stability analysis of power systems with wind power based on stochastic differential equations model development and foundations":
    also connected through other hyperedges:
      (none)
  Member "analytical studies of quasi steady state model in power system long term stability analysis":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "pmu based estimation of dynamic state jacobian matrix")
  Member "numerical investigations on quasi steady state model for voltage stability limitations and nonlinear analysis":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "quasi steady state model for power system stability limitations analysis and a remedy")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.SY(Systems and Control)