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 template a big data solution"
  Abstract: Today the emerging field of cloud computing has become as a new concept for hosting and delivering different services over the Internet and network for dealing with big data issues. Cloud computing is attractive to different business owners of both small and corporations as it eliminates the requirement for end-users to plan ahead for provisioning a massive and expensive infrastructures, and allows corporations to start with low investment and increase resources on demand. Despite the fact that cloud computing offers huge opportunities to the both in-house IT and out-house IT industry, the development of cloud computing technology is currently has several issues, such as lack of customization. This study presents an idea for introducing concept of "Cloud Templates" which will be used for analyzing, designing, developing and implementing cloud computing systems. We present a template based design for cloud computing systems, highlighting its key concepts, architectural principles and state-of-the-art implementation requirements, as well as research challenges and future work requirements. The aim of this idea is to provide a concept for important area of big data.

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)