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: "consensus of discrete time linear multi agent systems with observer type protocols"
  Abstract: This paper concerns the consensus of discrete-time multi-agent#R##N#systems with linear or linearized dynamics. An observer-type#R##N#protocol based on the relative outputs of neighboring agents is#R##N#proposed. The consensus of such a multi-agent system with a directed#R##N#communication topology can be cast into the stability of a set of#R##N#matrices with the same low dimension as that of a single agent. The#R##N#notion of discrete-time consensus region is then introduced and#R##N#analyzed. For neurally stable agents, it is shown that there exists#R##N#an observer-type protocol having a bounded consensus region in the#R##N#form of an open unit disk, provided that each agent is stabilizable#R##N#and detectable. An algorithm is further presented to construct a#R##N#protocol to achieve consensus with respect to all the communication#R##N#topologies containing a spanning tree. Moreover, for the case where#R##N#the agents have no poles#R##N#outside the unit circle,#R##N#an algorithm is proposed to construct a protocol having an#R##N#origin-centered disk of radius #R##N# $\delta$ ($0<\delta<1$) as its#R##N#consensus region. Finally, the consensus algorithms are applied to#R##N#solve formation control problems of multi-agent systems.

Connected through hyperedge HE-1 (induced by source paper "robust consensus for multi agent systems communicating over stochastic uncertain networks"):
  with members:
    - "multi agent consensus with relative state dependent measurement noises"

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)