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: "mobile cloud computing a comparison of application models"
  Abstract: Cloud computing is an emerging concept combining many fields of computing. The foundation of cloud computing is the delivery of services, software and processing capacity over the Internet, reducing cost, increasing storage, automating systems, decoupling of service delivery from underlying technology, and providing flexibility and mobility of information. However, the actual realization of these benefits is far from being achieved for mobile applications and open many new research questions. In order to better understand how to facilitate the building of mobile cloud-based applications, we have surveyed existing work in mobile computing through the prism of cloud computing principles. We give a definition of mobile cloud coputing and provide an overview of the results from this review, in particular, models of mobile cloud applications. We also highlight research challenges in the area of mobile cloud computing. We conclude with recommendations for how this better understanding of mobile cloud computing can help building more powerful mobile applications.

Connected through hyperedge HE-1 (induced by source paper "a comprehensive survey on fog computing state of the art and research challenges"):
  with members:
    - "coding for distributed fog computing"
    - "realizing the tactile internet haptic communications over next generation 5g cellular networks"
    - "mobile edge computing a survey on architecture and computation offloading"
    - "fog computing based radio access networks issues and challenges"
    - "fit a fog computing device for speech teletreatments"
    - "backhaul traffic balancing and dynamic content centric clustering for the downlink of fog radio access network"
    - "analysis of an offloading scheme for data centers in the framework of fog computing"
    - "fog data enhancing telehealth big data through fog computing"

Connected through hyperedge HE-2 (induced by source paper "on mobile cloud for smart city applications"):
  with members:
    - "cloud services brokerage a survey and research roadmap"
    - "from participatory sensing to mobile crowd sensing"
    - "sensing as a service model for smart cities supported by internet of things"

Connected through hyperedge HE-3 (induced by source paper "a study of research trends and issues in wireless ad hoc networks"):
  with members:
    - "towards a grid based approach to traffic routing in vanet"
    - "mobile ad hoc networks a comparative study of qos routing protocols"
    - "cooperation enforcement for packet forwarding optimization in multi hop ad hoc networks"
    - "an approach to ad hoc cloud computing"
    - "an overview of mobile ad hoc networks for the existing protocols and applications"
    - "dpraodv a dyanamic learning system against blackhole attack in aodv based manet"
    - "market oriented cloud computing vision hype and reality for delivering it services as computing utilities"

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.NI(Networking and Internet Architecture)