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: "a harmonic potential approach for simultaneous planning and control of a generic uav platform"
  Abstract: Simultaneous planning and control of a large variety of unmanned aerial vehicles (UAVs) is tackled using the harmonic potential field (HPF) approach. A dense reference velocity field generated from the gradient of an HPF is used to regulate the velocity of the UAV concerned in a manner that would propel the UAV to a target point while enforcing the constraints on behavior that were a priori encoded in the reference field. The regulation process is carried-out using a novel and simple concept called the: virtual velocity attractor (VVA). The combined effect of the HPF gradient and the VVA is found able to yield an efficient, easy to implement, well-behaved and provably-correct context-sensitive control action that suits a wide variety of UAVs. The approach is developed and basic proofs of correctness are provided along with simulation results.

Connected through hyperedge HE-1 (induced by source paper "sensor based time critical mobility of autonomous robots in cluttered spaces a harmonic potential approach"):
  with members:
    - "a harmonic potential field approach for joint planning and control of a rigid separable nonholonomic mobile robot"
    - "motion planning with gamma harmonic potential fields"
    - "kinodynamic motion planning"
    - "a delay tolerant potential field based network implementation of an integrated navigation system"

Connected through hyperedge HE-2 (induced by source paper "nearest neighbor based rendezvous for sparsely connected mobile agents"):
  with members:
    - "kinodynamic motion planning"
    - "decentralized self organizing potential field based control for individually motivated mobile agents in a cluttered environment a vector harmonic potential field approach"

Connected through hyperedge HE-3 (induced by source paper "a harmonic potential field approach for joint planning and control of a rigid separable nonholonomic mobile robot"):
  with members:
    - "motion planning with gamma harmonic potential fields"
    - "a delay tolerant potential field based network implementation of an integrated navigation system"
    - "decentralized self organizing potential field based control for individually motivated mobile agents in a cluttered environment a vector harmonic potential field approach"

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.RO(Robotics)