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: "energy in computing systems with speed scaling optimization and mechanisms design"
  Abstract: We study a simple scheduling game for the speed scaling model. Players want their job to complete early, which however generates a big energy consumption. We address the game from the mechanism design side, and by charging the energy usage to the players we seek for a good compromize between quality of service and energy usage.

Connected through hyperedge HE-1 (induced by source paper "mechanism design for aggregating energy consumption and quality of service in speed scaling scheduling"):
  with members:
    - "resource cost aware scheduling"
    - "scheduling under dynamic speed scaling for minimizing weighted completion time and energy consumption"
    - "the local global conjecture for scheduling with non linear cost"
    - "dual techniques for scheduling on a machine with varying speed"

Connected through hyperedge HE-2 (induced by source paper "the local global conjecture for scheduling with non linear cost"):
  with members:
    - "a primal dual approximation algorithm for min sum single machine scheduling problems"
    - "scheduling under dynamic speed scaling for minimizing weighted completion time and energy consumption"
    - "scheduling on a machine with varying speed minimizing cost and energy via dual schedules"
    - "dual techniques for scheduling on a machine with varying speed"
    - "the geometry of scheduling"

Connected through hyperedge HE-3 (induced by source paper "dual techniques for scheduling on a machine with varying speed"):
  with members:
    - "resource cost aware scheduling"
    - "the geometry of scheduling"

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.GT(Computer Science and Game Theory)