human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "methodology to evaluate distributed control strategies used in distributed energy resource applications"):
  Abstract: This paper provides a taxonomy and method to evaluate distributed control strategies used in distributed energy resource (DER) applications in power distribution grid. The paper explains the design process and provides performance metrics concerning implementation and further discusses different possibilities in distributed control for providing grid services. It focuses on identifying distributed control strategies proposed in recently published research and ongoing research activities, in terms of their control architectures, mathematical methods, and operational features. The deployment of existing control technologies and research results are also discussed by reviewing recent smart grid demonstration projects.

Includes members:
  Member "a distributed demand side management framework for the smart grid":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "method and taxonomy for evaluation of distributed control strategies for distributed energy resources")
  Member "three party energy management with distributed energy resources in smart grid":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "peer to peer trading in electricity networks an overview")

Question: Please tell me which class the source paper 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)