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: "isolario a do ut des approach to improve the appeal of bgp route collecting"
  Abstract: The incompleteness of data collected from BGP route collecting projects is a well-known issue which potentially affects every research activity carried out on the analysis of the Internet inter-domain routing. Recent works explained that one of the possible solutions is to increase the number of ASes feeding these projects from the Internet periphery, in order to reveal the hidden portion of peering connectivity of their upstream providers. The main problem is that these projects are currently not appealing enough for the network administrators of these ASes, which are typically not aware of their existence or not interested enough to share their data. Our contribution is Isolario, a project based on the do-ut-des principle which aims at persuading network administrators to share their routing information by offering services in return, ranging from real-time analyses of the incoming BGP session(s) to historic analyses of routing reachability. To the best of our knowledge, Isolario is the only route collecting project publicly available which offers a set of services to its users to encourage their participation, aiming at increasing the amount of BGP data publicly available for research purposes.

Connected through hyperedge HE-1 (induced by source paper "the devils in the details placing decoy routers in the internet"):
  with members:
    - "few throats to choke on the current structure of the internet"
    - "evolution of the internet k dense structure"

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)