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 whole body software abstraction layer for control design of free floating mechanical systems"
  Abstract: In this paper, we propose a software abstraction layer to simplify the design and synthesis of whole-body controllers without making any preliminary assumptions on the control law to be implemented. The main advantage of the proposed library is the decoupling of the control software from implementation details, which are related to the robotic platform. Furthermore, the resulting code is more clean and concise than ad-hoc code, as it focuses only on the implementation of the control law. In addition, we present a reference implementation of the abstraction layer together with a Simulink interface to provide support to Model-Driven based development. We also show the implementation of a simple proportional-derivative plus gravity compensation control together with a more complex momentum-based bipedal balance controller.

Connected through hyperedge HE-1 (induced by source paper "modeling identification and control of model jet engines for jet powered robotics"):
  with members:
    - "a generic synchronous dataflow architecture to rapidly prototype and deploy robot controllers"
    - "momentum control of an underactuated flying humanoid robot"
    - "recent developments in aerial robotics a survey and prototypes overview"

Connected through hyperedge HE-2 (induced by source paper "trajectory advancement during human robot collaboration"):
  with members:
    - "trajectory deformations from physical human robot interaction"

Connected through hyperedge HE-3 (induced by source paper "a generic synchronous dataflow architecture to rapidly prototype and deploy robot controllers"):
  with members:
    - "exploiting friction in torque controlled humanoid robots"

Connected through hyperedge HE-4 (induced by source paper "telexistence and teleoperation for walking humanoid robots"):
  with members:
    - "a control architecture with online predictive planning for position and torque controlled walking of humanoid robots"
    - "a benchmarking of dcm based architectures for position and velocity controlled walking of humanoid robots"
    - "a review paper on oculus rift a virtual reality headset"

Connected through hyperedge HE-5 (induced by source paper "a receding horizon push recovery strategy for balancing the icub humanoid robot"):
  with members:
    - "a convex model of momentum dynamics for multi contact motion generation"
    - "torque controlled stepping strategy push recovery design and implementation on the icub humanoid robot"
    - "trajectory generation for multi contact momentum control"

Connected through hyperedge HE-6 (induced by source paper "momentum control of an underactuated flying humanoid robot"):
  with members:
    - "nonlinear feedback control of axisymmetric aerial vehicles"

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)