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: "the gridbus toolkit for service oriented grid and utility computing an overview and status report"
  Abstract: Grids aim at exploiting synergies that result from cooperation of autonomous distributed entities. The synergies that result from grid cooperation include the sharing, exchange, selection, and aggregation of geographically distributed resources such as computers, data bases, software, and scientific instruments for solving large-scale problems in science, engineering, and commerce. For this cooperation to be sustainable, participants need to have economic incentive. Therefore, "incentive" mechanisms should be considered as one of key design parameters of Grid architectures. In this article, we present an overview and status of an open source Grid toolkit, called Gridbus, whose architecture is fundamentally driven by the requirements of Grid economy. Gridbus technologies provide services for both computational and data grids that power the emerging eScience and eBusiness applications.

Connected through hyperedge HE-1 (induced by source paper "scheduling in grid computing environment"):
  with members:
    - "cloud computing and grid computing 360 degree compared"
    - "a taxonomy of workflow management systems for grid computing"
    - "gridsim a toolkit for the modeling and simulation of distributed resource management and scheduling for grid computing"
    - "the anatomy of the grid enabling scalable virtual organizations"
    - "nimrod g an architecture for a resource management and scheduling system in a global computational grid"

Connected through hyperedge HE-2 (induced by source paper "delivering it as a utility a systematic review"):
  with members:
    - "service level agreement sla in utility computing systems"
    - "sla oriented resource provisioning for cloud computing challenges architecture and solutions"
    - "market oriented cloud computing vision hype and reality for delivering it services as computing utilities"
    - "cloud computing and grid computing 360 degree compared"
    - "utility computing and global grids"
    - "economic based distributed resource management and scheduling for grid computing"
    - "a deadline and budget constrained cost time optimisation algorithm for scheduling task farming applications on global grids"
    - "nimrod g an architecture for a resource management and scheduling system in a global computational grid"

Connected through hyperedge HE-3 (induced by source paper "service level agreement sla in utility computing systems"):
  with members:
    - "cloudbus toolkit for market oriented cloud computing"
    - "modeling and simulation of scalable cloud computing environments and the cloudsim toolkit challenges and opportunities"
    - "utility computing and global grids"

Connected through hyperedge HE-4 (induced by source paper "empowering web service search with business know how"):
  with members:
    - "improving collaborations in neuroscientist community"

Connected through hyperedge HE-5 (induced by source paper "aneka a software platform for net based cloud computing"):
  with members:
    - "multi objective problem solving with offspring on enterprise clouds"
    - "decentralized overlay for federation of enterprise clouds"

Connected through hyperedge HE-6 (induced by source paper "dotgrid a net based cross platform software for desktop grids"):
  with members:
    - "the anatomy of the grid enabling scalable virtual organizations"

Connected through hyperedge HE-7 (induced by source paper "global grids and software toolkits a study of four grid middleware technologies"):
  with members:
    - "a grid service broker for scheduling distributed data oriented applications on global grids"
    - "alchemi a net based grid computing framework and its integration into global grids"
    - "economic based distributed resource management and scheduling for grid computing"
    - "the anatomy of the grid enabling scalable virtual organizations"

Connected through hyperedge HE-8 (induced by source paper "a taxonomy of workflow management systems for grid computing"):
  with members:
    - "a grid service broker for scheduling distributed data oriented applications on global grids"
    - "the anatomy of the grid enabling scalable virtual organizations"
    - "nimrod g an architecture for a resource management and scheduling system in a global computational grid"

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)