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: "robust distance based formation control of multiple rigid bodies with orientation alignment"
  Abstract: This paper addresses the problem of distance- and orientation-based formation control of a class of second-order nonlinear multi-agent systems in 3D space, under static and undirected communication topologies. More specifically, we design a decentralized model-free control protocol in the sense that each agent uses only local information from its neighbors to calculate its own control signal, without incorporating any knowledge of the model nonlinearities and exogenous disturbances. Moreover, the transient and steady state response is solely determined by certain designer-specified performance functions and is fully decoupled by the agents' dynamic model, the control gain selection, the underlying graph topology as well as the initial conditions. Additionally, by introducing certain inter-agent distance constraints, we guarantee collision avoidance and connectivity maintenance between neighboring agents. Finally, simulation results verify the performance of the proposed controllers.

Connected through hyperedge HE-1 (induced by source paper "robust trajectory tracking control for underactuated autonomous underwater vehicles"):
  with members:
    - "decentralized impedance control for cooperative manipulation of multiple underwater vehicle manipulator systems under lean communication"
    - "a distributed predictive control approach for cooperative manipulation of multiple underwater vehicle manipulator systems"
    - "design and experimental validation of tube based mpc for timed constrained robot planning"
    - "robust tube based model predictive control for time constrained robot navigation"
    - "control synthesis for multi agent systems under metric interval temporal logic specifications"
    - "a robust model predictive control approach for autonomous underwater vehicles operating in a constrained workspace"
    - "probabilistic plan synthesis for coupled multi agent systems"
    - "on the timed temporal logic planning of coupled multi agent systems"

Connected through hyperedge HE-2 (induced by source paper "design and experimental validation of tube based mpc for timed constrained robot planning"):
  with members:
    - "a distributed predictive control approach for cooperative manipulation of multiple underwater vehicle manipulator systems"
    - "robust tube based model predictive control for time constrained robot navigation"
    - "control synthesis for multi agent systems under metric interval temporal logic specifications"
    - "a robust model predictive control approach for autonomous underwater vehicles operating in a constrained workspace"
    - "probabilistic plan synthesis for coupled multi agent systems"
    - "on the timed temporal logic planning of coupled multi agent systems"
    - "a robust force control approach for underwater vehicle manipulator systems"
    - "cooperative task planning of multi agent systems under timed temporal specifications"

Connected through hyperedge HE-3 (induced by source paper "robust formation control in se 3 for tree graph structures with prescribed transient and steady state performance"):
  with members:
    - "position and orientation based formation control of multiple rigid bodies with collision avoidance and connectivity maintenance"
    - "bearing rigidity and almost global bearing only formation stabilization"

Connected through hyperedge HE-4 (induced by source paper "robust tube based model predictive control for time constrained robot navigation"):
  with members:
    - "on the timed temporal logic planning of coupled multi agent systems"
    - "cooperative task planning of multi agent systems under timed temporal specifications"

Connected through hyperedge HE-5 (induced by source paper "motion feasibility conditions for multi agent control systems on lie groups"):
  with members:
    - "position and orientation based formation control of multiple rigid bodies with collision avoidance and connectivity maintenance"

Connected through hyperedge HE-6 (induced by source paper "decentralized control of uncertain multi agent systems with connectivity maintenance and collision avoidance"):
  with members:
    - "control synthesis for multi agent systems under metric interval temporal logic specifications"
    - "on the timed temporal logic planning of coupled multi agent systems"

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)