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: "wave absorbing vehicular platoon controller"
  Abstract: Abstract   The paper tailors the so-called wave-based control, popular in the field of flexible mechanical structures, to the field of distributed control of vehicular platoons. The proposed solution augments the symmetric bidirectional control algorithm with a wave-absorbing controller implemented on the leader, and/or on the rear-end vehicle. The wave-absorbing controller actively absorbs an incoming wave of positional changes in the platoon and thus prevents oscillations of inter-vehicle distances. The proposed controller significantly improves the performance of platoon manoeuvrers such as acceleration/deceleration or changing the distances between vehicles without making the platoon string unstable. Numerical simulations show that the wave-absorbing controller performs efficiently even for platoons with a large number of vehicles, for which other platooning algorithms are inefficient or require wireless communication between vehicles.

Connected through hyperedge HE-1 (induced by source paper "on the necessity of symmetric positional coupling for string stability"):
  with members:
    - "nonzero bound on fiedler eigenvalue causes exponential growth of h infinity norm of vehicular platoon"
    - "a travelling wave approach to a multi agent system with a path graph topology"

Connected through hyperedge HE-2 (induced by source paper "transients of platoons with asymmetric and different laplacians"):
  with members:
    - "nonzero bound on fiedler eigenvalue causes exponential growth of h infinity norm of vehicular platoon"

Connected through hyperedge HE-3 (induced by source paper "a travelling wave approach to a multi agent system with a path graph topology"):
  with members:
    - "on the necessity of symmetric positional coupling for string stability"
    - "nonzero bound on fiedler eigenvalue causes exponential growth of h infinity norm of vehicular platoon"

Connected through hyperedge HE-4 (induced by source paper "scaling in bidirectional platoons with dynamic controllers and proportional asymmetry"):
  with members:
    - "transients of platoons with asymmetric and different laplacians"
    - "nonzero bound on fiedler eigenvalue causes exponential growth of h infinity norm of vehicular platoon"

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)