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: "cloud computing avoids downfall of application service providers"
  Abstract: Businesses have become dependent on ever increasing amounts of electronic information and rapid transaction speeds. Experts such as Diffie [1] speculate that the end of isolated computing is at hand, and that within the next decade most businesses will have made the shift to utility computing. In order to cut costs while still implementing increasingly complex Information Technology services, many companies turned to Application Service Providers (ASPs). Due to poor business models, over competition, and poor internet availability and bandwidth, many ASPs failed with the dot com crash. Other ASPs, however, who embraced web services architecture and true internet delivery were well placed as early cloud adopters. With the expanded penetration and bandwidth of internet services today, better business plans, and a wide divergence of offering, cloud computing is avoiding the ASP downfall, and is positioned to emerge as an enduring paradigm in computing.

Connected through hyperedge HE-1 (induced by source paper "complete network security protection for sme s within limited resources"):
  with members:
    - "video surveillance in the cloud"
    - "non profit organizations need to address security for effective government contracting"
    - "information security synthesis in online universities"
    - "security risks in mechanical engineering industries"
    - "it security plan for flight simulation program"
    - "enhancing infrastructure security in real estate"
    - "it security issues within the video game industry"
    - "an overview of the security concerns in enterprise cloud computing"

Connected through hyperedge HE-2 (induced by source paper "healthcare it is your information at risk"):
  with members:
    - "video surveillance in the cloud"
    - "non profit organizations need to address security for effective government contracting"
    - "information security synthesis in online universities"
    - "security risks in mechanical engineering industries"
    - "it security plan for flight simulation program"
    - "enhancing infrastructure security in real estate"
    - "it security issues within the video game industry"
    - "an overview of the security concerns in enterprise cloud computing"

Connected through hyperedge HE-3 (induced by source paper "non profit organizations need to address security for effective government contracting"):
  with members:
    - "information security synthesis in online universities"
    - "security risks in mechanical engineering industries"
    - "it security plan for flight simulation program"
    - "enhancing infrastructure security in real estate"
    - "it security issues within the video game industry"
    - "an overview of the security concerns in enterprise cloud computing"
    - "information security plan for flight simulator applications"
    - "convergence of corporate and information security"

Connected through hyperedge HE-4 (induced by source paper "video surveillance in the cloud"):
  with members:
    - "information security synthesis in online universities"
    - "security risks in mechanical engineering industries"
    - "it security plan for flight simulation program"
    - "enhancing infrastructure security in real estate"
    - "it security issues within the video game industry"
    - "information security plan for flight simulator applications"

Connected through hyperedge HE-5 (induced by source paper "it security plan for flight simulation program"):
  with members:
    - "security risks in mechanical engineering industries"
    - "an overview of the security concerns in enterprise cloud computing"
    - "information security plan for flight simulator applications"
    - "convergence of corporate and information security"

Connected through hyperedge HE-6 (induced by source paper "enhancing infrastructure security in real estate"):
  with members:
    - "security risks in mechanical engineering industries"
    - "an overview of the security concerns in enterprise cloud computing"
    - "information security plan for flight simulator applications"
    - "convergence of corporate and information security"

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.DC(Distributed, Parallel, and Cluster Computing)