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: "distributed real time power balancing in renewable integrated power grids with storage and flexible loads"
  Abstract: The large-scale integration of renewable generation directly affects the reliability of power grids. We investigate the problem of power balancing in a general renewable-integrated power grid with storage and flexible loads. We consider a power grid that is supplied by one conventional generator (CG) and multiple renewable generators (RGs) each co-located with storage, and is connected with external markets. An aggregator operates the power grid to maintain power balance between supply and demand. Aiming at minimizing the long-term system cost, we first propose a real-time centralized power balancing solution, taking into account the uncertainty of the renewable generation, loads, and energy prices. We then provide a distributed implementation algorithm, significantly reducing both computational burden and communication overhead. We demonstrate that our proposed algorithm is asymptotically optimal as the storage capacity increases and the CG ramping constraint loosens. Moreover, the distributed implementation enjoys a fast convergence rate, and enables each RG and the aggregator to make their own decisions. Simulation shows that our proposed algorithm outperforms alternatives and can achieve near-optimal performance for a wide range of storage capacity.

Connected through hyperedge HE-1 (induced by source paper "residential energy storage management with bidirectional energy control"):
  with members:
    - "real time residential side joint energy storage management and load scheduling with renewable integration"
    - "competitive energy trading framework for demand side management in neighborhood area networks"
    - "adaptive electricity scheduling in microgrids"
    - "optimal power cost management using stored energy in data centers"

Connected through hyperedge HE-2 (induced by source paper "real time residential side joint energy storage management and load scheduling with renewable integration"):
  with members:
    - "real time welfare maximizing regulation allocation in dynamic aggregator evs system"
    - "adaptive electricity scheduling in microgrids"
    - "real time power balancing via decentralized coordinated home energy scheduling"
    - "optimal power cost management using stored energy in data centers"

Connected through hyperedge HE-3 (induced by source paper "multi timescale online optimization of network function virtualization for service chaining"):
  with members:
    - "learn and adapt stochastic dual gradients for network resource allocation"
    - "network function virtualization state of the art and research challenges"

Connected through hyperedge HE-4 (induced by source paper "distributed real time hvac control for cost efficient commercial buildings under smart grid environment"):
  with members:
    - "decentralized and distributed temperature control via hvac systems in energy efficient buildings"
    - "robust energy constrained frequency reserves from aggregations of commercial buildings"
    - "distributed real time energy management in data center microgrids"
    - "an internet of things framework for smart energy in buildings designs prototype and experiments"
    - "adaptive electricity scheduling in microgrids"

Connected through hyperedge HE-5 (induced by source paper "learn and adapt stochastic dual gradients for network resource allocation"):
  with members:
    - "saga a fast incremental gradient method with support for non strongly convex composite objectives"
    - "optimal power cost management using stored energy in data centers"

Connected through hyperedge HE-6 (induced by source paper "dynamic computation offloading for mobile edge computing with energy harvesting devices"):
  with members:
    - "delay optimal computation task scheduling for mobile edge computing systems"
    - "grid energy consumption and qos tradeoff in hybrid energy supply wireless networks"
    - "arq with adaptive feedback for energy harvesting receivers"
    - "power delay tradeoff in multi user mobile edge computing systems"
    - "decentralized computation offloading game for mobile cloud computing"
    - "energy harvesting wireless communications a review of recent advances"
    - "energy harvesting small cell networks feasibility deployment and operation"
    - "a lyapunov optimization approach for green cellular networks with hybrid energy supplies"

Connected through hyperedge HE-7 (induced by source paper "distributed real time energy management in data center microgrids"):
  with members:
    - "adaptive electricity scheduling in microgrids"

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)