human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "strategic topology switching for security part i consensus switching times"
  Abstract: This two-part paper considers strategic topology switching for the second-order multi-agent system under attack. In Part I, we propose a strategy on switching times that enables the strategic topology-switching algorithm proposed in Part II to reach the second-order consensus in the absence of attacks. The control protocol introduced to the multi-agent system is governed only by the relative positions of agents. Based on the stability of switched linear systems, the strategy on the dwell time of topology-switching signal is derived. The primary advantages of the strategy in achieving the second-order consensus are: 1) the control protocol relies only on relative position measurements, no velocity measurements are needed; 2) the strategy has no constraint on the magnitude of coupling strength. Simulations are provided to verify the effectiveness of strategic topology switching in achieving the second-order consensus.

Connected through hyperedge HE-1 (induced by source paper "strategic topology switching for security part ii detection switching topologies"):
  with members:
    - "disabling external influence in social networks via edge recommendation"
    - "on the computation of worst attacks a lp framework"

Question: Please tell me which class the center node 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)